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mariadb/sql/field.cc
unknown 70aa7424c4 Big code cleanup/review before 4.0.2 release. 
(All commit emails since 4.0.1 checked)
This had to be done now, before the 4.1 tree changes to much, to make it easy to propagate bug fixes to the 4.1 tree.


BUILD/SETUP.sh:
  Added -DPEDANTIC_SAFEMALLOC as standard debug option
Docs/manual.texi:
  Changes for new version.
client/mysql.cc:
  Fixed default value for rehash
  cleanup
client/mysqladmin.c:
  Cleanup
client/mysqlbinlog.cc:
  cleanup
client/mysqldump.c:
  Cleanup
client/mysqlmanager-pwgen.c:
  Cleanup
client/mysqlmanagerc.c:
  Cleanup
client/mysqltest.c:
  Cleanup
dbug/dbug.c:
  Cleanup
extra/resolve_stack_dump.c:
  Cleanup & Simple optimizations
include/ft_global.h:
  Cleanup
include/my_alloc.h:
  Cleanup
include/my_global.h:
  Cleanup
include/my_sys.h:
  Cleanup
include/myisam.h:
  Cleanup
libmysql/libmysql.c:
  Cleanup
libmysql/manager.c:
  Cleanup
myisam/ft_boolean_search.c:
  Cleanup
myisam/ft_dump.c:
  Change strcpy -> strmov
myisam/ft_eval.c:
  Cleanup
myisam/ft_nlq_search.c:
  Cleanup
myisam/ft_test1.c:
  strncpy -> strnmov
myisam/ft_update.c:
  Cleanup
myisam/mi_static.c:
  Cleanup
myisam/mi_test2.c:
  Cleanup
myisam/mi_write.c:
  Cleanup
mysys/mf_fn_ext.c:
  Cleanup
mysys/mf_iocache.c:
  Cleanup
mysys/mf_iocache2.c:
  Cleanup
mysys/my_getopt.c:
  Cleanup
mysys/my_read.c:
  Cleanup
mysys/my_thr_init.c:
  Cleanup
mysys/queues.c:
  Cleanup
mysys/safemalloc.c:
  Cleanup
sql/field.cc:
  Indentation cleanups
sql/ha_berkeley.cc:
  Indentation cleanups
sql/ha_myisam.cc:
  Cleanup
sql/item.h:
  Indentation cleanups
sql/item_cmpfunc.cc:
  Indentation cleanups
sql/item_create.cc:
  cleanup
sql/item_func.cc:
  Cleanup
sql/item_func.h:
  Indentation cleanups
sql/item_strfunc.cc:
  Indentation cleanups
sql/item_sum.cc:
  Indentation cleanups
sql/item_timefunc.cc:
  Indentation cleanups
sql/lock.cc:
  Indentation cleanups
sql/log.cc:
  Cleanup
  strnmov -> strmake
sql/log_event.cc:
  Cleanup + optimizations
  Fixed memory leak
  Added missing pthread_mutex_unlock()  (On error condition)
sql/log_event.h:
  Indentation and comment cleanup
  Merged #ifdef's into common blocks for better readability
sql/mini_client.cc:
  Indentation cleanup
sql/mysql_priv.h:
  Cleanup
  Changed int function to bool
sql/mysqld.cc:
  Indentation and comment cleanup
sql/net_pkg.cc:
  Indentation cleanup
sql/net_serv.cc:
  Changed int function -> bool
sql/nt_servc.cc:
  Cleanup
sql/opt_range.cc:
  Indentation cleanup
sql/repl_failsafe.cc:
  Cleanup + simple optimization
  strnmov -> strmake
sql/slave.cc:
  strnmov -> strmake
  Cleanups
sql/slave.h:
  Cleanup
sql/sql_acl.cc:
  Indentation and DBUG_PRINT cleanup
  Changed WITH MAX... to not use =
sql/sql_base.cc:
  Indentation cleanup
sql/sql_cache.cc:
  Indentation cleanup
sql/sql_class.cc:
  Indentation cleanup
sql/sql_class.h:
  Renamed some struct slots
sql/sql_delete.cc:
  Indentation cleanup
sql/sql_handler.cc:
  Indentation cleanup
sql/sql_insert.cc:
  Use new slot names.
sql/sql_lex.cc:
  Indentation cleanup
sql/sql_lex.h:
  Indentation cleanup
sql/sql_load.cc:
  Indentation cleanup
sql/sql_parse.cc:
  Indentation cleanup
  Removed not used check from LOCK TABLES
sql/sql_repl.cc:
  strnmov -> strmake
sql/sql_repl.h:
  Removed test if file is included (We want to know if it's included twice to avoid this)
sql/sql_select.cc:
  Indentation cleanup
sql/sql_show.cc:
  Indentation cleanup
sql/sql_string.cc:
  Indentation cleanup
sql/sql_table.cc:
  Indentation cleanup
sql/sql_union.cc:
  Use renamed struct slot
sql/sql_update.cc:
  Indentation cleanup
sql/sql_yacc.yy:
  Removed = after GRANT ... MAX_  to make the syntax uniform
sql/table.cc:
  Indentation cleanup
sql/table.h:
  Indentation cleanup
sql/time.cc:
  Indentation cleanup
sql/udf_example.cc:
  Indentation cleanup
sql/unireg.cc:
  strnmov -> strmake
tests/grant.pl:
  Added test for LOCK TABLES
tools/mysqlmanager.c:
  Cleanup
  fopen() -> my_fopen()
vio/viosocket.c:
  DBUG_PRINT cleanups
vio/viosslfactories.c:
  Indentation cleanup
  Checking of results from malloc()
  Fixed possible memory leak
BitKeeper/etc/ignore:
  Added scripts/mysql_secure_installation to the ignore list
BitKeeper/etc/logging_ok:
  Logging to logging@openlogging.org accepted
2002-06-11 11:20:31 +03:00

4837 lines
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/* Copyright (C) 2000 MySQL AB & MySQL Finland AB & TCX DataKonsult AB
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
/*
NOTES:
Some of the number class uses the system functions strtol(), strtoll()...
To avoid patching the end \0 or copying the buffer unnecessary, all calls
to system functions are wrapped to a String object that adds the end null
if it only if it isn't there.
This adds some overhead when assigning numbers from strings but makes
everything simpler.
*/
/*****************************************************************************
** This file implements classes defined in field.h
*****************************************************************************/
#ifdef __GNUC__
#pragma implementation // gcc: Class implementation
#endif
#include "mysql_priv.h"
#include "sql_select.h"
#include <m_ctype.h>
#include <errno.h>
#ifdef HAVE_FCONVERT
#include <floatingpoint.h>
#endif
/*****************************************************************************
** Instansiate templates and static variables
*****************************************************************************/
#ifdef __GNUC__
template class List<create_field>;
template class List_iterator<create_field>;
#endif
struct st_decstr {
uint nr_length,nr_dec,sign,extra;
char sign_char;
};
uchar Field_null::null[1]={1};
const char field_separator=',';
/*****************************************************************************
** Static help functions
*****************************************************************************/
/*
Calculate length of number and its parts
Increment cuted_fields if wrong number
*/
static bool
number_dec(struct st_decstr *sdec, const char *str, const char *end)
{
sdec->sign=sdec->extra=0;
if (str == end)
{
current_thd->cuted_fields++;
sdec->nr_length=sdec->nr_dec=sdec->sign=0;
sdec->extra=1; // We must put one 0 before .
return 1;
}
if (*str == '-' || *str == '+') /* sign */
{
sdec->sign_char= *str;
sdec->sign=1;
str++;
}
const char *start=str;
while (str != end && isdigit(*str))
str++;
if (!(sdec->nr_length=(uint) (str-start)))
sdec->extra=1; // We must put one 0 before .
start=str;
if (str != end && *str == '.')
{
str++;
start=str;
while (str != end && isdigit(*str))
str++;
}
sdec->nr_dec=(uint) (str-start);
if (current_thd->count_cuted_fields)
{
while (str != end && isspace(*str))
str++; /* purecov: inspected */
if (str != end)
{
current_thd->cuted_fields++;
return 1;
}
}
return 0;
}
void Field_num::prepend_zeros(String *value)
{
int diff;
if ((diff= (int) (field_length - value->length())) > 0)
{
bmove_upp((char*) value->ptr()+field_length,value->ptr()+value->length(),
value->length());
bfill((char*) value->ptr(),diff,'0');
value->length(field_length);
(void) value->c_ptr_quick(); // Avoid warnings in purify
}
}
/*
** Test if given number is a int (or a fixed format float with .000)
** This is only used to give warnings in ALTER TABLE or LOAD DATA...
*/
bool test_if_int(const char *str,int length)
{
const char *end=str+length;
while (str != end && isspace(*str)) // Allow start space
str++; /* purecov: inspected */
if (str != end && (*str == '-' || *str == '+'))
str++;
if (str == end)
return 0; // Error: Empty string
for (; str != end ; str++)
{
if (!isdigit(*str))
{
if (*str == '.')
{ // Allow '.0000'
for (str++ ; str != end && *str == '0'; str++) ;
if (str == end)
return 1;
}
if (!isspace(*str))
return 0;
for (str++ ; str != end ; str++)
if (!isspace(*str))
return 0;
return 1;
}
}
return 1;
}
static bool test_if_real(const char *str,int length)
{
while (length && isspace(*str))
{ // Allow start space
length--; str++;
}
if (!length)
return 0;
if (*str == '+' || *str == '-')
{
length--; str++;
if (!length || !(isdigit(*str) || *str == '.'))
return 0;
}
while (length && isdigit(*str))
{
length--; str++;
}
if (!length)
return 1;
if (*str == '.')
{
length--; str++;
while (length && isdigit(*str))
{
length--; str++;
}
}
if (!length)
return 1;
if (*str == 'E' || *str == 'e')
{
if (length < 3 || (str[1] != '+' && str[1] != '-') || !isdigit(str[2]))
return 0;
length-=3;
str+=3;
while (length && isdigit(*str))
{
length--; str++;
}
}
for (; length ; length--, str++)
{ // Allow end space
if (!isspace(*str))
return 0;
}
return 1;
}
/****************************************************************************
** Functions for the base classes
** This is an unpacked number.
****************************************************************************/
Field::Field(char *ptr_arg,uint32 length_arg,uchar *null_ptr_arg,
uchar null_bit_arg,
utype unireg_check_arg, const char *field_name_arg,
struct st_table *table_arg)
:ptr(ptr_arg),null_ptr(null_ptr_arg),
table(table_arg),table_name(table_arg ? table_arg->table_name : 0),
field_name(field_name_arg),
query_id(0),key_start(0),part_of_key(0),part_of_sortkey(0),
unireg_check(unireg_check_arg),
field_length(length_arg),null_bit(null_bit_arg)
{
flags=null_ptr ? 0: NOT_NULL_FLAG;
}
uint Field::offset()
{
return (uint) (ptr - (char*) table->record[0]);
}
void Field::copy_from_tmp(int row_offset)
{
memcpy(ptr,ptr+row_offset,pack_length());
if (null_ptr)
{
*null_ptr= (uchar) ((null_ptr[0] & (uchar) ~(uint) null_bit) |
null_ptr[row_offset] & (uchar) null_bit);
}
}
bool Field::send(THD *thd, String *packet)
{
if (is_null())
return net_store_null(packet);
char buff[MAX_FIELD_WIDTH];
String tmp(buff,sizeof(buff));
val_str(&tmp,&tmp);
CONVERT *convert;
if ((convert=thd->convert_set))
return convert->store(packet,tmp.ptr(),tmp.length());
return net_store_data(packet,tmp.ptr(),tmp.length());
}
void Field_num::add_zerofill_and_unsigned(String &res) const
{
res.length((uint) strlen(res.ptr())); // Fix length
if (unsigned_flag)
res.append(" unsigned");
if (zerofill)
res.append(" zerofill");
}
void Field_num::make_field(Send_field *field)
{
field->table_name=table_name;
field->col_name=field_name;
field->length=field_length;
field->type=type();
field->flags=table->maybe_null ? (flags & ~NOT_NULL_FLAG) : flags;
field->decimals=dec;
}
void Field_str::make_field(Send_field *field)
{
field->table_name=table_name;
field->col_name=field_name;
field->length=field_length;
field->type=type();
field->flags=table->maybe_null ? (flags & ~NOT_NULL_FLAG) : flags;
field->decimals=0;
}
uint Field::fill_cache_field(CACHE_FIELD *copy)
{
copy->str=ptr;
copy->length=pack_length();
copy->blob_field=0;
if (flags & BLOB_FLAG)
{
copy->blob_field=(Field_blob*) this;
copy->strip=0;
copy->length-=table->blob_ptr_size;
return copy->length;
}
else if (!zero_pack() && (type() == FIELD_TYPE_STRING && copy->length > 4 ||
type() == FIELD_TYPE_VAR_STRING))
copy->strip=1; /* Remove end space */
else
copy->strip=0;
return copy->length+(int) copy->strip;
}
bool Field::get_date(TIME *ltime,bool fuzzydate)
{
char buff[40];
String tmp(buff,sizeof(buff)),tmp2,*res;
if (!(res=val_str(&tmp,&tmp2)) ||
str_to_TIME(res->ptr(),res->length(),ltime,fuzzydate) == TIMESTAMP_NONE)
return 1;
return 0;
}
bool Field::get_time(TIME *ltime)
{
char buff[40];
String tmp(buff,sizeof(buff)),tmp2,*res;
if (!(res=val_str(&tmp,&tmp2)) ||
str_to_time(res->ptr(),res->length(),ltime))
return 1;
return 0;
}
/* This is called when storing a date in a string */
void Field::store_time(TIME *ltime,timestamp_type type)
{
char buff[25];
switch (type) {
case TIMESTAMP_NONE:
store("",0); // Probably an error
break;
case TIMESTAMP_DATE:
sprintf(buff,"%04d-%02d-%02d", ltime->year,ltime->month,ltime->day);
store(buff,10);
break;
case TIMESTAMP_FULL:
sprintf(buff,"%04d-%02d-%02d %02d:%02d:%02d",
ltime->year,ltime->month,ltime->day,
ltime->hour,ltime->minute,ltime->second);
store(buff,19);
break;
case TIMESTAMP_TIME:
sprintf(buff, "%02d:%02d:%02d",
ltime->hour,ltime->minute,ltime->second);
store(buff,(uint) strlen(buff));
break;
}
}
bool Field::optimize_range(uint idx)
{
return test(table->file->index_flags(idx) & HA_READ_NEXT);
}
/****************************************************************************
** Functions for the Field_decimal class
** This is an unpacked number.
****************************************************************************/
void
Field_decimal::reset(void)
{
Field_decimal::store("0",1);
}
void Field_decimal::overflow(bool negative)
{
uint len=field_length;
char *to=ptr, filler= '9';
if (negative)
{
if (!unsigned_flag)
{
/* Put - sign as a first digit so we'll have -999..999 or 999..999 */
*to++ = '-';
len--;
}
else
{
filler= '0'; // Fill up with 0
if (!zerofill)
{
/*
Handle unsigned integer without zerofill, in which case
the number should be of format ' 0' or ' 0.000'
*/
uint whole_part=field_length- (dec ? dec+2 : 1);
// Fill with spaces up to the first digit
bfill(to, whole_part, ' ');
to+= whole_part;
len-= whole_part;
// The main code will also handle the 0 before the decimal point
}
}
}
bfill(to, len, filler);
if (dec)
ptr[field_length-dec-1]='.';
return;
}
void Field_decimal::store(const char *from,uint len)
{
reg3 int i;
uint tmp_dec;
char fyllchar;
const char *end=from+len;
struct st_decstr decstr;
bool error;
if ((tmp_dec= dec))
tmp_dec++; // Calculate pos of '.'
while (from != end && isspace(*from))
from++;
if (zerofill)
{
fyllchar = '0';
if (from != end)
while (*from == '0' && from != end-1) // Skip prezero
from++;
}
else
fyllchar=' ';
error=number_dec(&decstr,from,end);
if (decstr.sign)
{
from++;
if (unsigned_flag) // No sign with zerofill
{
if (decstr.sign_char == '+') // just remove "+"
decstr.sign= 0;
else
{
if (!error)
current_thd->cuted_fields++;
Field_decimal::overflow(1);
return;
}
}
}
/*
** Remove pre-zeros if too big number
*/
for (i= (int) (decstr.nr_length+decstr.extra -(field_length-tmp_dec)+
decstr.sign) ;
i > 0 ;
i--)
{
if (*from == '0')
{
from++;
decstr.nr_length--;
continue;
}
if (decstr.sign && decstr.sign_char == '+' && i == 1)
{ // Remove pre '+'
decstr.sign=0;
break;
}
current_thd->cuted_fields++;
// too big number, change to max or min number
Field_decimal::overflow(decstr.sign && decstr.sign_char == '-');
return;
}
char *to=ptr;
for (i=(int) (field_length-tmp_dec-decstr.nr_length-decstr.extra - decstr.sign) ;
i-- > 0 ;)
*to++ = fyllchar;
if (decstr.sign)
*to++= decstr.sign_char;
if (decstr.extra)
*to++ = '0';
for (i=(int) decstr.nr_length ; i-- > 0 ; )
*to++ = *from++;
if (tmp_dec--)
{
*to++ ='.';
if (decstr.nr_dec) from++; // Skip '.'
for (i=(int) min(decstr.nr_dec,tmp_dec) ; i-- > 0 ; ) *to++ = *from++;
for (i=(int) (tmp_dec-min(decstr.nr_dec,tmp_dec)) ; i-- > 0 ; ) *to++ = '0';
}
/*
** Check for incorrect string if in batch mode (ALTER TABLE/LOAD DATA...)
*/
if (!error && current_thd->count_cuted_fields && from != end)
{ // Check if number was cuted
for (; from != end ; from++)
{
if (*from != '0')
{
if (!isspace(*from)) // Space is ok
current_thd->cuted_fields++;
break;
}
}
}
}
void Field_decimal::store(double nr)
{
if (unsigned_flag && nr < 0)
{
overflow(1);
current_thd->cuted_fields++;
return;
}
reg4 uint i,length;
char fyllchar,*to;
char buff[320];
fyllchar = zerofill ? (char) '0' : (char) ' ';
#ifdef HAVE_SNPRINTF_
buff[sizeof(buff)-1]=0; // Safety
snprintf(buff,sizeof(buff)-1, "%.*f",(int) dec,nr);
#else
sprintf(buff,"%.*f",dec,nr);
#endif
length=(uint) strlen(buff);
if (length > field_length)
{
overflow(nr < 0.0);
current_thd->cuted_fields++;
}
else
{
to=ptr;
for (i=field_length-length ; i-- > 0 ;)
*to++ = fyllchar;
memcpy(to,buff,length);
}
}
void Field_decimal::store(longlong nr)
{
if (unsigned_flag && nr < 0)
{
overflow(1);
current_thd->cuted_fields++;
return;
}
char buff[22];
uint length=(uint) (longlong10_to_str(nr,buff,-10)-buff);
uint int_part=field_length- (dec ? dec+1 : 0);
if (length > int_part)
{
overflow(test(nr < 0L)); /* purecov: inspected */
current_thd->cuted_fields++; /* purecov: inspected */
}
else
{
char fyllchar = zerofill ? (char) '0' : (char) ' ';
char *to=ptr;
for (uint i=int_part-length ; i-- > 0 ;)
*to++ = fyllchar;
memcpy(to,buff,length);
if (dec)
{
to[length]='.';
bfill(to+length+1,dec,'0');
}
}
}
double Field_decimal::val_real(void)
{
char temp= *(ptr+field_length); *(ptr+field_length) = '\0';
double nr=atod(ptr);
*(ptr+field_length)=temp;
return(nr);
}
longlong Field_decimal::val_int(void)
{
char temp= *(ptr+field_length); *(ptr+field_length) = '\0';
longlong nr;
if (unsigned_flag)
nr=(longlong) strtoull(ptr,NULL,10);
else
nr=strtoll(ptr,NULL,10);
*(ptr+field_length)=temp;
return(nr);
}
String *Field_decimal::val_str(String *val_buffer __attribute__((unused)),
String *val_ptr)
{
char *str;
for (str=ptr ; *str == ' ' ; str++) ;
uint tmp_length=(uint) (str-ptr);
if (field_length < tmp_length) // Error in data
val_ptr->length(0);
else
val_ptr->set((const char*) str,field_length-tmp_length);
return val_ptr;
}
/*
** Should be able to handle at least the following fixed decimal formats:
** 5.00 , -1.0, 05, -05, +5 with optional pre/end space
*/
int Field_decimal::cmp(const char *a_ptr,const char *b_ptr)
{
const char *end;
int swap=0;
/* First remove prefixes '0', ' ', and '-' */
for (end=a_ptr+field_length;
a_ptr != end &&
(*a_ptr == *b_ptr ||
((isspace(*a_ptr) || *a_ptr == '+' || *a_ptr == '0') &&
(isspace(*b_ptr) || *b_ptr == '+' || *b_ptr == '0')));
a_ptr++,b_ptr++)
{
if (*a_ptr == '-') // If both numbers are negative
swap= -1 ^ 1; // Swap result
}
if (a_ptr == end)
return 0;
if (*a_ptr == '-')
return -1;
else if (*b_ptr == '-')
return 1;
while (a_ptr != end)
{
if (*a_ptr++ != *b_ptr++)
return swap ^ (a_ptr[-1] < b_ptr[-1] ? -1 : 1); // compare digits
}
return 0;
}
void Field_decimal::sort_string(char *to,uint length)
{
char *str,*end;
for (str=ptr,end=ptr+length;
str != end &&
((isspace(*str) || *str == '+' || *str == '0')) ;
str++)
*to++=' ';
if (str == end)
return; /* purecov: inspected */
if (*str == '-')
{
*to++=1; // Smaller than any number
str++;
while (str != end)
if (isdigit(*str))
*to++= (char) ('9' - *str++);
else
*to++= *str++;
}
else memcpy(to,str,(uint) (end-str));
}
void Field_decimal::sql_type(String &res) const
{
uint tmp=field_length;
if (!unsigned_flag)
tmp--;
if (dec)
tmp--;
sprintf((char*) res.ptr(),"decimal(%d,%d)",tmp,dec);
add_zerofill_and_unsigned(res);
}
/****************************************************************************
** tiny int
****************************************************************************/
void Field_tiny::store(const char *from,uint len)
{
String tmp_str(from,len);
long tmp= strtol(tmp_str.c_ptr(),NULL,10);
if (unsigned_flag)
{
if (tmp < 0)
{
tmp=0; /* purecov: inspected */
current_thd->cuted_fields++; /* purecov: inspected */
}
else if (tmp > 255)
{
tmp= 255;
current_thd->cuted_fields++;
}
else if (current_thd->count_cuted_fields && !test_if_int(from,len))
current_thd->cuted_fields++;
}
else
{
if (tmp < -128)
{
tmp= -128;
current_thd->cuted_fields++;
}
else if (tmp >= 128)
{
tmp= 127;
current_thd->cuted_fields++;
}
else if (current_thd->count_cuted_fields && !test_if_int(from,len))
current_thd->cuted_fields++;
}
ptr[0]= (char) tmp;
}
void Field_tiny::store(double nr)
{
nr=rint(nr);
if (unsigned_flag)
{
if (nr < 0.0)
{
*ptr=0;
current_thd->cuted_fields++;
}
else if (nr > 255.0)
{
*ptr=(char) 255;
current_thd->cuted_fields++;
}
else
*ptr=(char) nr;
}
else
{
if (nr < -128.0)
{
*ptr= (char) -128;
current_thd->cuted_fields++;
}
else if (nr > 127.0)
{
*ptr=127;
current_thd->cuted_fields++;
}
else
*ptr=(char) nr;
}
}
void Field_tiny::store(longlong nr)
{
if (unsigned_flag)
{
if (nr < 0L)
{
*ptr=0;
current_thd->cuted_fields++;
}
else if (nr > 255L)
{
*ptr= (char) 255;
current_thd->cuted_fields++;
}
else
*ptr=(char) nr;
}
else
{
if (nr < -128L)
{
*ptr= (char) -128;
current_thd->cuted_fields++;
}
else if (nr > 127L)
{
*ptr=127;
current_thd->cuted_fields++;
}
else
*ptr=(char) nr;
}
}
double Field_tiny::val_real(void)
{
int tmp= unsigned_flag ? (int) ((uchar*) ptr)[0] :
(int) ((signed char*) ptr)[0];
return (double) tmp;
}
longlong Field_tiny::val_int(void)
{
int tmp= unsigned_flag ? (int) ((uchar*) ptr)[0] :
(int) ((signed char*) ptr)[0];
return (longlong) tmp;
}
String *Field_tiny::val_str(String *val_buffer,
String *val_ptr __attribute__((unused)))
{
uint length;
val_buffer->alloc(max(field_length+1,5));
char *to=(char*) val_buffer->ptr();
if (unsigned_flag)
length= (uint) (int10_to_str((long) *((uchar*) ptr),to,10)-to);
else
length= (uint) (int10_to_str((long) *((signed char*) ptr),to,-10)-to);
val_buffer->length(length);
if (zerofill)
prepend_zeros(val_buffer);
return val_buffer;
}
int Field_tiny::cmp(const char *a_ptr, const char *b_ptr)
{
signed char a,b;
a=(signed char) a_ptr[0]; b= (signed char) b_ptr[0];
if (unsigned_flag)
return ((uchar) a < (uchar) b) ? -1 : ((uchar) a > (uchar) b) ? 1 : 0;
return (a < b) ? -1 : (a > b) ? 1 : 0;
}
void Field_tiny::sort_string(char *to,uint length __attribute__((unused)))
{
if (unsigned_flag)
*to= *ptr;
else
to[0] = (char) ((uchar) ptr[0] ^ (uchar) 128); /* Revers signbit */
}
void Field_tiny::sql_type(String &res) const
{
sprintf((char*) res.ptr(),"tinyint(%d)",(int) field_length);
add_zerofill_and_unsigned(res);
}
/****************************************************************************
** short int
****************************************************************************/
// Note: Sometimes this should be fixed to use one strtol() to use
// len and check for garbage after number.
void Field_short::store(const char *from,uint len)
{
String tmp_str(from,len);
long tmp= strtol(tmp_str.c_ptr(),NULL,10);
if (unsigned_flag)
{
if (tmp < 0)
{
tmp=0;
current_thd->cuted_fields++;
}
else if (tmp > (uint16) ~0)
{
tmp=(uint16) ~0;
current_thd->cuted_fields++;
}
else if (current_thd->count_cuted_fields && !test_if_int(from,len))
current_thd->cuted_fields++;
}
else
{
if (tmp < INT_MIN16)
{
tmp= INT_MIN16;
current_thd->cuted_fields++;
}
else if (tmp > INT_MAX16)
{
tmp=INT_MAX16;
current_thd->cuted_fields++;
}
else if (current_thd->count_cuted_fields && !test_if_int(from,len))
current_thd->cuted_fields++;
}
#ifdef WORDS_BIGENDIAN
if (table->db_low_byte_first)
{
int2store(ptr,tmp);
}
else
#endif
shortstore(ptr,(short) tmp);
}
void Field_short::store(double nr)
{
int16 res;
nr=rint(nr);
if (unsigned_flag)
{
if (nr < 0)
{
res=0;
current_thd->cuted_fields++;
}
else if (nr > (double) (uint16) ~0)
{
res=(int16) (uint16) ~0;
current_thd->cuted_fields++;
}
else
res=(int16) (uint16) nr;
}
else
{
if (nr < (double) INT_MIN16)
{
res=INT_MIN16;
current_thd->cuted_fields++;
}
else if (nr > (double) INT_MAX16)
{
res=INT_MAX16;
current_thd->cuted_fields++;
}
else
res=(int16) nr;
}
#ifdef WORDS_BIGENDIAN
if (table->db_low_byte_first)
{
int2store(ptr,res);
}
else
#endif
shortstore(ptr,res);
}
void Field_short::store(longlong nr)
{
int16 res;
if (unsigned_flag)
{
if (nr < 0L)
{
res=0;
current_thd->cuted_fields++;
}
else if (nr > (longlong) (uint16) ~0)
{
res=(int16) (uint16) ~0;
current_thd->cuted_fields++;
}
else
res=(int16) (uint16) nr;
}
else
{
if (nr < INT_MIN16)
{
res=INT_MIN16;
current_thd->cuted_fields++;
}
else if (nr > INT_MAX16)
{
res=INT_MAX16;
current_thd->cuted_fields++;
}
else
res=(int16) nr;
}
#ifdef WORDS_BIGENDIAN
if (table->db_low_byte_first)
{
int2store(ptr,res);
}
else
#endif
shortstore(ptr,res);
}
double Field_short::val_real(void)
{
short j;
#ifdef WORDS_BIGENDIAN
if (table->db_low_byte_first)
j=sint2korr(ptr);
else
#endif
shortget(j,ptr);
return unsigned_flag ? (double) (unsigned short) j : (double) j;
}
longlong Field_short::val_int(void)
{
short j;
#ifdef WORDS_BIGENDIAN
if (table->db_low_byte_first)
j=sint2korr(ptr);
else
#endif
shortget(j,ptr);
return unsigned_flag ? (longlong) (unsigned short) j : (longlong) j;
}
String *Field_short::val_str(String *val_buffer,
String *val_ptr __attribute__((unused)))
{
uint length;
val_buffer->alloc(max(field_length+1,7));
char *to=(char*) val_buffer->ptr();
short j;
#ifdef WORDS_BIGENDIAN
if (table->db_low_byte_first)
j=sint2korr(ptr);
else
#endif
shortget(j,ptr);
if (unsigned_flag)
length=(uint) (int10_to_str((long) (uint16) j,to,10)-to);
else
length=(uint) (int10_to_str((long) j,to,-10)-to);
val_buffer->length(length);
if (zerofill)
prepend_zeros(val_buffer);
return val_buffer;
}
int Field_short::cmp(const char *a_ptr, const char *b_ptr)
{
short a,b;
#ifdef WORDS_BIGENDIAN
if (table->db_low_byte_first)
{
a=sint2korr(a_ptr);
b=sint2korr(b_ptr);
}
else
#endif
{
shortget(a,a_ptr);
shortget(b,b_ptr);
}
if (unsigned_flag)
return ((unsigned short) a < (unsigned short) b) ? -1 :
((unsigned short) a > (unsigned short) b) ? 1 : 0;
return (a < b) ? -1 : (a > b) ? 1 : 0;
}
void Field_short::sort_string(char *to,uint length __attribute__((unused)))
{
#ifdef WORDS_BIGENDIAN
if (!table->db_low_byte_first)
{
if (unsigned_flag)
to[0] = ptr[0];
else
to[0] = (char) (ptr[0] ^ 128); /* Revers signbit */
to[1] = ptr[1];
}
else
#endif
{
if (unsigned_flag)
to[0] = ptr[1];
else
to[0] = (char) (ptr[1] ^ 128); /* Revers signbit */
to[1] = ptr[0];
}
}
void Field_short::sql_type(String &res) const
{
sprintf((char*) res.ptr(),"smallint(%d)",(int) field_length);
add_zerofill_and_unsigned(res);
}
/****************************************************************************
** medium int
****************************************************************************/
// Note: Sometimes this should be fixed to use one strtol() to use
// len and check for garbage after number.
void Field_medium::store(const char *from,uint len)
{
String tmp_str(from,len);
long tmp= strtol(tmp_str.c_ptr(),NULL,10);
if (unsigned_flag)
{
if (tmp < 0)
{
tmp=0;
current_thd->cuted_fields++;
}
else if (tmp >= (long) (1L << 24))
{
tmp=(long) (1L << 24)-1L;
current_thd->cuted_fields++;
}
else if (current_thd->count_cuted_fields && !test_if_int(from,len))
current_thd->cuted_fields++;
}
else
{
if (tmp < INT_MIN24)
{
tmp= INT_MIN24;
current_thd->cuted_fields++;
}
else if (tmp > INT_MAX24)
{
tmp=INT_MAX24;
current_thd->cuted_fields++;
}
else if (current_thd->count_cuted_fields && !test_if_int(from,len))
current_thd->cuted_fields++;
}
int3store(ptr,tmp);
}
void Field_medium::store(double nr)
{
nr=rint(nr);
if (unsigned_flag)
{
if (nr < 0)
{
int3store(ptr,0);
current_thd->cuted_fields++;
}
else if (nr >= (double) (long) (1L << 24))
{
uint32 tmp=(uint32) (1L << 24)-1L;
int3store(ptr,tmp);
current_thd->cuted_fields++;
}
else
int3store(ptr,(uint32) nr);
}
else
{
if (nr < (double) INT_MIN24)
{
long tmp=(long) INT_MIN24;
int3store(ptr,tmp);
current_thd->cuted_fields++;
}
else if (nr > (double) INT_MAX24)
{
long tmp=(long) INT_MAX24;
int3store(ptr,tmp);
current_thd->cuted_fields++;
}
else
int3store(ptr,(long) nr);
}
}
void Field_medium::store(longlong nr)
{
if (unsigned_flag)
{
if (nr < 0L)
{
int3store(ptr,0);
current_thd->cuted_fields++;
}
else if (nr >= (longlong) (long) (1L << 24))
{
long tmp=(long) (1L << 24)-1L;;
int3store(ptr,tmp);
current_thd->cuted_fields++;
}
else
int3store(ptr,(uint32) nr);
}
else
{
if (nr < (longlong) INT_MIN24)
{
long tmp=(long) INT_MIN24;
int3store(ptr,tmp);
current_thd->cuted_fields++;
}
else if (nr > (longlong) INT_MAX24)
{
long tmp=(long) INT_MAX24;
int3store(ptr,tmp);
current_thd->cuted_fields++;
}
else
int3store(ptr,(long) nr);
}
}
double Field_medium::val_real(void)
{
long j= unsigned_flag ? (long) uint3korr(ptr) : sint3korr(ptr);
return (double) j;
}
longlong Field_medium::val_int(void)
{
long j= unsigned_flag ? (long) uint3korr(ptr) : sint3korr(ptr);
return (longlong) j;
}
String *Field_medium::val_str(String *val_buffer,
String *val_ptr __attribute__((unused)))
{
uint length;
val_buffer->alloc(max(field_length+1,10));
char *to=(char*) val_buffer->ptr();
long j= unsigned_flag ? (long) uint3korr(ptr) : sint3korr(ptr);
length=(uint) (int10_to_str(j,to,-10)-to);
val_buffer->length(length);
if (zerofill)
prepend_zeros(val_buffer); /* purecov: inspected */
return val_buffer;
}
int Field_medium::cmp(const char *a_ptr, const char *b_ptr)
{
long a,b;
if (unsigned_flag)
{
a=uint3korr(a_ptr);
b=uint3korr(b_ptr);
}
else
{
a=sint3korr(a_ptr);
b=sint3korr(b_ptr);
}
return (a < b) ? -1 : (a > b) ? 1 : 0;
}
void Field_medium::sort_string(char *to,uint length __attribute__((unused)))
{
if (unsigned_flag)
to[0] = ptr[2];
else
to[0] = (uchar) (ptr[2] ^ 128); /* Revers signbit */
to[1] = ptr[1];
to[2] = ptr[0];
}
void Field_medium::sql_type(String &res) const
{
sprintf((char*) res.ptr(),"mediumint(%d)",(int) field_length);
add_zerofill_and_unsigned(res);
}
/****************************************************************************
** long int
****************************************************************************/
// Note: Sometimes this should be fixed to use one strtol() to use
// len and check for garbage after number.
void Field_long::store(const char *from,uint len)
{
while (len && isspace(*from))
{
len--; from++;
}
long tmp;
String tmp_str(from,len);
errno=0;
if (unsigned_flag)
{
if (!len || *from == '-')
{
tmp=0; // Set negative to 0
errno=ERANGE;
}
else
tmp=(long) strtoul(tmp_str.c_ptr(),NULL,10);
}
else
tmp=strtol(tmp_str.c_ptr(),NULL,10);
if (errno || current_thd->count_cuted_fields && !test_if_int(from,len))
current_thd->cuted_fields++;
#ifdef WORDS_BIGENDIAN
if (table->db_low_byte_first)
{
int4store(ptr,tmp);
}
else
#endif
longstore(ptr,tmp);
}
void Field_long::store(double nr)
{
int32 res;
nr=rint(nr);
if (unsigned_flag)
{
if (nr < 0)
{
res=0;
current_thd->cuted_fields++;
}
else if (nr > (double) (ulong) ~0L)
{
res=(int32) (uint32) ~0L;
current_thd->cuted_fields++;
}
else
res=(int32) (ulong) nr;
}
else
{
if (nr < (double) INT_MIN32)
{
res=(int32) INT_MIN32;
current_thd->cuted_fields++;
}
else if (nr > (double) INT_MAX32)
{
res=(int32) INT_MAX32;
current_thd->cuted_fields++;
}
else
res=(int32) nr;
}
#ifdef WORDS_BIGENDIAN
if (table->db_low_byte_first)
{
int4store(ptr,res);
}
else
#endif
longstore(ptr,res);
}
void Field_long::store(longlong nr)
{
int32 res;
if (unsigned_flag)
{
if (nr < 0)
{
res=0;
current_thd->cuted_fields++;
}
else if (nr >= (LL(1) << 32))
{
res=(int32) (uint32) ~0L;
current_thd->cuted_fields++;
}
else
res=(int32) (uint32) nr;
}
else
{
if (nr < (longlong) INT_MIN32)
{
res=(int32) INT_MIN32;
current_thd->cuted_fields++;
}
else if (nr > (longlong) INT_MAX32)
{
res=(int32) INT_MAX32;
current_thd->cuted_fields++;
}
else
res=(int32) nr;
}
#ifdef WORDS_BIGENDIAN
if (table->db_low_byte_first)
{
int4store(ptr,res);
}
else
#endif
longstore(ptr,res);
}
double Field_long::val_real(void)
{
int32 j;
#ifdef WORDS_BIGENDIAN
if (table->db_low_byte_first)
j=sint4korr(ptr);
else
#endif
longget(j,ptr);
return unsigned_flag ? (double) (uint32) j : (double) j;
}
longlong Field_long::val_int(void)
{
int32 j;
#ifdef WORDS_BIGENDIAN
if (table->db_low_byte_first)
j=sint4korr(ptr);
else
#endif
longget(j,ptr);
return unsigned_flag ? (longlong) (uint32) j : (longlong) j;
}
String *Field_long::val_str(String *val_buffer,
String *val_ptr __attribute__((unused)))
{
uint length;
val_buffer->alloc(max(field_length+1,12));
char *to=(char*) val_buffer->ptr();
int32 j;
#ifdef WORDS_BIGENDIAN
if (table->db_low_byte_first)
j=sint4korr(ptr);
else
#endif
longget(j,ptr);
length=(uint) (int10_to_str((unsigned_flag ? (long) (uint32) j : (long) j),
to,
unsigned_flag ? 10 : -10)-to);
val_buffer->length(length);
if (zerofill)
prepend_zeros(val_buffer);
return val_buffer;
}
int Field_long::cmp(const char *a_ptr, const char *b_ptr)
{
int32 a,b;
#ifdef WORDS_BIGENDIAN
if (table->db_low_byte_first)
{
a=sint4korr(a_ptr);
b=sint4korr(b_ptr);
}
else
#endif
{
longget(a,a_ptr);
longget(b,b_ptr);
}
if (unsigned_flag)
return ((uint32) a < (uint32) b) ? -1 : ((uint32) a > (uint32) b) ? 1 : 0;
return (a < b) ? -1 : (a > b) ? 1 : 0;
}
void Field_long::sort_string(char *to,uint length __attribute__((unused)))
{
#ifdef WORDS_BIGENDIAN
if (!table->db_low_byte_first)
{
if (unsigned_flag)
to[0] = ptr[0];
else
to[0] = (char) (ptr[0] ^ 128); /* Revers signbit */
to[1] = ptr[1];
to[2] = ptr[2];
to[3] = ptr[3];
}
else
#endif
{
if (unsigned_flag)
to[0] = ptr[3];
else
to[0] = (char) (ptr[3] ^ 128); /* Revers signbit */
to[1] = ptr[2];
to[2] = ptr[1];
to[3] = ptr[0];
}
}
void Field_long::sql_type(String &res) const
{
sprintf((char*) res.ptr(),"int(%d)",(int) field_length);
add_zerofill_and_unsigned(res);
}
/****************************************************************************
** longlong int
****************************************************************************/
void Field_longlong::store(const char *from,uint len)
{
while (len && isspace(*from))
{ // For easy error check
len--; from++;
}
longlong tmp;
String tmp_str(from,len);
errno=0;
if (unsigned_flag)
{
if (!len || *from == '-')
{
tmp=0; // Set negative to 0
errno=ERANGE;
}
else
tmp=(longlong) strtoull(tmp_str.c_ptr(),NULL,10);
}
else
tmp=strtoll(tmp_str.c_ptr(),NULL,10);
if (errno || current_thd->count_cuted_fields && !test_if_int(from,len))
current_thd->cuted_fields++;
#ifdef WORDS_BIGENDIAN
if (table->db_low_byte_first)
{
int8store(ptr,tmp);
}
else
#endif
longlongstore(ptr,tmp);
}
void Field_longlong::store(double nr)
{
longlong res;
nr=rint(nr);
if (unsigned_flag)
{
if (nr < 0)
{
res=0;
current_thd->cuted_fields++;
}
else if (nr >= (double) ~ (ulonglong) 0)
{
res= ~(longlong) 0;
current_thd->cuted_fields++;
}
else
res=(longlong) (ulonglong) nr;
}
else
{
if (nr <= (double) LONGLONG_MIN)
{
res=(longlong) LONGLONG_MIN;
current_thd->cuted_fields++;
}
else if (nr >= (double) LONGLONG_MAX)
{
res=(longlong) LONGLONG_MAX;
current_thd->cuted_fields++;
}
else
res=(longlong) nr;
}
#ifdef WORDS_BIGENDIAN
if (table->db_low_byte_first)
{
int8store(ptr,res);
}
else
#endif
longlongstore(ptr,res);
}
void Field_longlong::store(longlong nr)
{
#ifdef WORDS_BIGENDIAN
if (table->db_low_byte_first)
{
int8store(ptr,nr);
}
else
#endif
longlongstore(ptr,nr);
}
double Field_longlong::val_real(void)
{
longlong j;
#ifdef WORDS_BIGENDIAN
if (table->db_low_byte_first)
{
j=sint8korr(ptr);
}
else
#endif
longlongget(j,ptr);
return unsigned_flag ? ulonglong2double((ulonglong) j) : (double) j;
}
longlong Field_longlong::val_int(void)
{
longlong j;
#ifdef WORDS_BIGENDIAN
if (table->db_low_byte_first)
j=sint8korr(ptr);
else
#endif
longlongget(j,ptr);
return j;
}
String *Field_longlong::val_str(String *val_buffer,
String *val_ptr __attribute__((unused)))
{
uint length;
val_buffer->alloc(max(field_length+1,22));
char *to=(char*) val_buffer->ptr();
longlong j;
#ifdef WORDS_BIGENDIAN
if (table->db_low_byte_first)
j=sint8korr(ptr);
else
#endif
longlongget(j,ptr);
length=(uint) (longlong10_to_str(j,to,unsigned_flag ? 10 : -10)-to);
val_buffer->length(length);
if (zerofill)
prepend_zeros(val_buffer);
return val_buffer;
}
int Field_longlong::cmp(const char *a_ptr, const char *b_ptr)
{
longlong a,b;
#ifdef WORDS_BIGENDIAN
if (table->db_low_byte_first)
{
a=sint8korr(a_ptr);
b=sint8korr(b_ptr);
}
else
#endif
{
longlongget(a,a_ptr);
longlongget(b,b_ptr);
}
if (unsigned_flag)
return ((ulonglong) a < (ulonglong) b) ? -1 :
((ulonglong) a > (ulonglong) b) ? 1 : 0;
return (a < b) ? -1 : (a > b) ? 1 : 0;
}
void Field_longlong::sort_string(char *to,uint length __attribute__((unused)))
{
#ifdef WORDS_BIGENDIAN
if (!table->db_low_byte_first)
{
if (unsigned_flag)
to[0] = ptr[0];
else
to[0] = (char) (ptr[0] ^ 128); /* Revers signbit */
to[1] = ptr[1];
to[2] = ptr[2];
to[3] = ptr[3];
to[4] = ptr[4];
to[5] = ptr[5];
to[6] = ptr[6];
to[7] = ptr[7];
}
else
#endif
{
if (unsigned_flag)
to[0] = ptr[7];
else
to[0] = (char) (ptr[7] ^ 128); /* Revers signbit */
to[1] = ptr[6];
to[2] = ptr[5];
to[3] = ptr[4];
to[4] = ptr[3];
to[5] = ptr[2];
to[6] = ptr[1];
to[7] = ptr[0];
}
}
void Field_longlong::sql_type(String &res) const
{
sprintf((char*) res.ptr(),"bigint(%d)",(int) field_length);
add_zerofill_and_unsigned(res);
}
/****************************************************************************
** single precision float
****************************************************************************/
void Field_float::store(const char *from,uint len)
{
String tmp_str(from,len);
errno=0;
Field_float::store(atof(tmp_str.c_ptr()));
if (errno || current_thd->count_cuted_fields && !test_if_real(from,len))
current_thd->cuted_fields++;
}
void Field_float::store(double nr)
{
float j;
if (dec < NOT_FIXED_DEC)
nr=floor(nr*log_10[dec]+0.5)/log_10[dec]; // To fixed point
if (unsigned_flag && nr < 0)
{
current_thd->cuted_fields++;
nr=0;
}
if (nr < -FLT_MAX)
{
j= -FLT_MAX;
current_thd->cuted_fields++;
}
else if (nr > FLT_MAX)
{
j=FLT_MAX;
current_thd->cuted_fields++;
}
else
j= (float) nr;
#ifdef WORDS_BIGENDIAN
if (table->db_low_byte_first)
{
float4store(ptr,j);
}
else
#endif
memcpy_fixed(ptr,(byte*) &j,sizeof(j));
}
void Field_float::store(longlong nr)
{
float j= (float) nr;
if (unsigned_flag && j < 0)
{
current_thd->cuted_fields++;
j=0;
}
#ifdef WORDS_BIGENDIAN
if (table->db_low_byte_first)
{
float4store(ptr,j);
}
else
#endif
memcpy_fixed(ptr,(byte*) &j,sizeof(j));
}
double Field_float::val_real(void)
{
float j;
#ifdef WORDS_BIGENDIAN
if (table->db_low_byte_first)
{
float4get(j,ptr);
}
else
#endif
memcpy_fixed((byte*) &j,ptr,sizeof(j));
return ((double) j);
}
longlong Field_float::val_int(void)
{
float j;
#ifdef WORDS_BIGENDIAN
if (table->db_low_byte_first)
{
float4get(j,ptr);
}
else
#endif
memcpy_fixed((byte*) &j,ptr,sizeof(j));
return ((longlong) j);
}
String *Field_float::val_str(String *val_buffer,
String *val_ptr __attribute__((unused)))
{
float nr;
#ifdef WORDS_BIGENDIAN
if (table->db_low_byte_first)
{
float4get(nr,ptr);
}
else
#endif
memcpy_fixed((byte*) &nr,ptr,sizeof(nr));
uint to_length=max(field_length,70);
val_buffer->alloc(to_length);
char *to=(char*) val_buffer->ptr();
if (dec >= NOT_FIXED_DEC)
{
sprintf(to,"%-*.*g",(int) field_length,FLT_DIG,nr);
to=strcend(to,' ');
*to=0;
}
else
{
#ifdef HAVE_FCONVERT
char buff[70],*pos=buff;
int decpt,sign,tmp_dec=dec;
VOID(sfconvert(&nr,tmp_dec,&decpt,&sign,buff));
if (sign)
{
*to++='-';
}
if (decpt < 0)
{ /* val_buffer is < 0 */
*to++='0';
if (!tmp_dec)
goto end;
*to++='.';
if (-decpt > tmp_dec)
decpt= - (int) tmp_dec;
tmp_dec=(uint) ((int) tmp_dec+decpt);
while (decpt++ < 0)
*to++='0';
}
else if (decpt == 0)
{
*to++= '0';
if (!tmp_dec)
goto end;
*to++='.';
}
else
{
while (decpt-- > 0)
*to++= *pos++;
if (!tmp_dec)
goto end;
*to++='.';
}
while (tmp_dec--)
*to++= *pos++;
#else
#ifdef HAVE_SNPRINTF
to[to_length-1]=0; // Safety
snprintf(to,to_length-1,"%.*f",dec,nr);
#else
sprintf(to,"%.*f",dec,nr);
#endif
to=strend(to);
#endif
}
#ifdef HAVE_FCONVERT
end:
#endif
val_buffer->length((uint) (to-val_buffer->ptr()));
if (zerofill)
prepend_zeros(val_buffer);
return val_buffer;
}
int Field_float::cmp(const char *a_ptr, const char *b_ptr)
{
float a,b;
#ifdef WORDS_BIGENDIAN
if (table->db_low_byte_first)
{
float4get(a,a_ptr);
float4get(b,b_ptr);
}
else
#endif
{
memcpy_fixed(&a,a_ptr,sizeof(float));
memcpy_fixed(&b,b_ptr,sizeof(float));
}
return (a < b) ? -1 : (a > b) ? 1 : 0;
}
#define FLT_EXP_DIG (sizeof(float)*8-FLT_MANT_DIG)
void Field_float::sort_string(char *to,uint length __attribute__((unused)))
{
float nr;
#ifdef WORDS_BIGENDIAN
if (table->db_low_byte_first)
{
float4get(nr,ptr);
}
else
#endif
memcpy_fixed(&nr,ptr,sizeof(float));
uchar *tmp= (uchar*) to;
if (nr == (float) 0.0)
{ /* Change to zero string */
tmp[0]=(uchar) 128;
bzero((char*) tmp+1,sizeof(nr)-1);
}
else
{
#ifdef WORDS_BIGENDIAN
memcpy_fixed(tmp,&nr,sizeof(nr));
#else
tmp[0]= ptr[3]; tmp[1]=ptr[2]; tmp[2]= ptr[1]; tmp[3]=ptr[0];
#endif
if (tmp[0] & 128) /* Negative */
{ /* make complement */
uint i;
for (i=0 ; i < sizeof(nr); i++)
tmp[i]= (uchar) (tmp[i] ^ (uchar) 255);
}
else
{
ushort exp_part=(((ushort) tmp[0] << 8) | (ushort) tmp[1] |
(ushort) 32768);
exp_part+= (ushort) 1 << (16-1-FLT_EXP_DIG);
tmp[0]= (uchar) (exp_part >> 8);
tmp[1]= (uchar) exp_part;
}
}
}
void Field_float::sql_type(String &res) const
{
if (dec == NOT_FIXED_DEC)
strmov((char*) res.ptr(),"float");
else
sprintf((char*) res.ptr(),"float(%d,%d)",(int) field_length,dec);
add_zerofill_and_unsigned(res);
}
/****************************************************************************
** double precision floating point numbers
****************************************************************************/
void Field_double::store(const char *from,uint len)
{
String tmp_str(from,len);
errno=0;
double j= atof(tmp_str.c_ptr());
if (errno || current_thd->count_cuted_fields && !test_if_real(from,len))
current_thd->cuted_fields++;
if (unsigned_flag && j < 0)
{
current_thd->cuted_fields++;
j=0;
}
#ifdef WORDS_BIGENDIAN
if (table->db_low_byte_first)
{
float8store(ptr,j);
}
else
#endif
doublestore(ptr,j);
}
void Field_double::store(double nr)
{
if (dec < NOT_FIXED_DEC)
nr=floor(nr*log_10[dec]+0.5)/log_10[dec]; // To fixed point
if (unsigned_flag && nr < 0)
{
current_thd->cuted_fields++;
nr=0;
}
#ifdef WORDS_BIGENDIAN
if (table->db_low_byte_first)
{
float8store(ptr,nr);
}
else
#endif
doublestore(ptr,nr);
}
void Field_double::store(longlong nr)
{
double j= (double) nr;
if (unsigned_flag && j < 0)
{
current_thd->cuted_fields++;
j=0;
}
#ifdef WORDS_BIGENDIAN
if (table->db_low_byte_first)
{
float8store(ptr,j);
}
else
#endif
doublestore(ptr,j);
}
double Field_double::val_real(void)
{
double j;
#ifdef WORDS_BIGENDIAN
if (table->db_low_byte_first)
{
float8get(j,ptr);
}
else
#endif
doubleget(j,ptr);
return j;
}
longlong Field_double::val_int(void)
{
double j;
#ifdef WORDS_BIGENDIAN
if (table->db_low_byte_first)
{
float8get(j,ptr);
}
else
#endif
doubleget(j,ptr);
return ((longlong) j);
}
String *Field_double::val_str(String *val_buffer,
String *val_ptr __attribute__((unused)))
{
double nr;
#ifdef WORDS_BIGENDIAN
if (table->db_low_byte_first)
{
float8get(nr,ptr);
}
else
#endif
doubleget(nr,ptr);
uint to_length=max(field_length,320);
val_buffer->alloc(to_length);
char *to=(char*) val_buffer->ptr();
if (dec >= NOT_FIXED_DEC)
{
sprintf(to,"%-*.*g",(int) field_length,DBL_DIG,nr);
to=strcend(to,' ');
}
else
{
#ifdef HAVE_FCONVERT
char buff[320],*pos=buff;
int decpt,sign,tmp_dec=dec;
VOID(fconvert(nr,tmp_dec,&decpt,&sign,buff));
if (sign)
{
*to++='-';
}
if (decpt < 0)
{ /* val_buffer is < 0 */
*to++='0';
if (!tmp_dec)
goto end;
*to++='.';
if (-decpt > tmp_dec)
decpt= - (int) tmp_dec;
tmp_dec=(uint) ((int) tmp_dec+decpt);
while (decpt++ < 0)
*to++='0';
}
else if (decpt == 0)
{
*to++= '0';
if (!tmp_dec)
goto end;
*to++='.';
}
else
{
while (decpt-- > 0)
*to++= *pos++;
if (!tmp_dec)
goto end;
*to++='.';
}
while (tmp_dec--)
*to++= *pos++;
#else
#ifdef HAVE_SNPRINTF
to[to_length-1]=0; // Safety
snprintf(to,to_length-1,"%.*f",dec,nr);
#else
sprintf(to,"%.*f",dec,nr);
#endif
to=strend(to);
#endif
}
#ifdef HAVE_FCONVERT
end:
#endif
val_buffer->length((uint) (to-val_buffer->ptr()));
if (zerofill)
prepend_zeros(val_buffer);
return val_buffer;
}
int Field_double::cmp(const char *a_ptr, const char *b_ptr)
{
double a,b;
#ifdef WORDS_BIGENDIAN
if (table->db_low_byte_first)
{
float8get(a,a_ptr);
float8get(b,b_ptr);
}
else
#endif
{
/* could this ALWAYS be 2 calls to doubleget() ?? */
#if defined(__FLOAT_WORD_ORDER) && (__FLOAT_WORD_ORDER == __BIG_ENDIAN)
doubleget(a, a_ptr);
doubleget(b, b_ptr);
#else
memcpy_fixed(&a,a_ptr,sizeof(double));
memcpy_fixed(&b,b_ptr,sizeof(double));
#endif
}
return (a < b) ? -1 : (a > b) ? 1 : 0;
}
#define DBL_EXP_DIG (sizeof(double)*8-DBL_MANT_DIG)
/* The following should work for IEEE */
void Field_double::sort_string(char *to,uint length __attribute__((unused)))
{
double nr;
#ifdef WORDS_BIGENDIAN
if (table->db_low_byte_first)
{
float8get(nr,ptr);
}
else
#endif
/* could this ALWAYS be 2 calls to doubleget() ?? */
#if defined(__FLOAT_WORD_ORDER) && (__FLOAT_WORD_ORDER == __BIG_ENDIAN)
doubleget(nr,ptr);
#else
memcpy_fixed(&nr,ptr,sizeof(nr));
#endif
change_double_for_sort(nr, (byte*) to);
}
void Field_double::sql_type(String &res) const
{
if (dec == NOT_FIXED_DEC)
strmov((char*) res.ptr(),"double");
else
sprintf((char*) res.ptr(),"double(%d,%d)",(int) field_length,dec);
add_zerofill_and_unsigned(res);
}
/****************************************************************************
** timestamp
** The first timestamp in the table is automaticly updated
** by handler.cc. The form->timestamp points at the automatic timestamp.
****************************************************************************/
Field_timestamp::Field_timestamp(char *ptr_arg, uint32 len_arg,
enum utype unireg_check_arg,
const char *field_name_arg,
struct st_table *table_arg)
:Field_num(ptr_arg, len_arg, (uchar*) 0,0,
unireg_check_arg, field_name_arg, table_arg,
0, 1, 1)
{
if (table && !table->timestamp_field)
{
table->timestamp_field= this; // Automatic timestamp
table->time_stamp=(ulong) (ptr_arg - (char*) table->record[0])+1;
flags|=TIMESTAMP_FLAG;
}
}
void Field_timestamp::store(const char *from,uint len)
{
long tmp=(long) str_to_timestamp(from,len);
#ifdef WORDS_BIGENDIAN
if (table->db_low_byte_first)
{
int4store(ptr,tmp);
}
else
#endif
longstore(ptr,tmp);
}
void Field_timestamp::fill_and_store(char *from,uint len)
{
uint res_length;
if (len <= field_length)
res_length=field_length;
else if (len <= 12)
res_length=12; /* purecov: inspected */
else if (len <= 14)
res_length=14; /* purecov: inspected */
else
res_length=(len+1)/2*2; // must be even
if (res_length != len)
{
bmove_upp(from+res_length,from+len,len);
bfill(from,res_length-len,'0');
len=res_length;
}
long tmp=(long) str_to_timestamp(from,len);
#ifdef WORDS_BIGENDIAN
if (table->db_low_byte_first)
{
int4store(ptr,tmp);
}
else
#endif
longstore(ptr,tmp);
}
void Field_timestamp::store(double nr)
{
if (nr < 0 || nr > 99991231235959.0)
{
nr=0; // Avoid overflow on buff
current_thd->cuted_fields++;
}
Field_timestamp::store((longlong) rint(nr));
}
/*
** Convert a datetime of formats YYMMDD, YYYYMMDD or YYMMDDHHMSS to
** YYYYMMDDHHMMSS. The high date '99991231235959' is checked before this
** function.
*/
static longlong fix_datetime(longlong nr)
{
if (nr == LL(0) || nr >= LL(10000101000000))
return nr; // Normal datetime >= Year 1000
if (nr < 101)
goto err;
if (nr <= (YY_PART_YEAR-1)*10000L+1231L)
return (nr+20000000L)*1000000L; // YYMMDD, year: 2000-2069
if (nr < (YY_PART_YEAR)*10000L+101L)
goto err;
if (nr <= 991231L)
return (nr+19000000L)*1000000L; // YYMMDD, year: 1970-1999
if (nr < 10000101L)
goto err;
if (nr <= 99991231L)
return nr*1000000L;
if (nr < 101000000L)
goto err;
if (nr <= (YY_PART_YEAR-1)*LL(10000000000)+LL(1231235959))
return nr+LL(20000000000000); // YYMMDDHHMMSS, 2000-2069
if (nr < YY_PART_YEAR*LL(10000000000)+ LL(101000000))
goto err;
if (nr <= LL(991231235959))
return nr+LL(19000000000000); // YYMMDDHHMMSS, 1970-1999
err:
current_thd->cuted_fields++;
return LL(0);
}
void Field_timestamp::store(longlong nr)
{
TIME l_time;
time_t timestamp;
long part1,part2;
if ((nr=fix_datetime(nr)))
{
part1=(long) (nr/LL(1000000));
part2=(long) (nr - (longlong) part1*LL(1000000));
l_time.year= (int) (part1/10000L); part1%=10000L;
l_time.month= (int) part1 / 100;
l_time.day= (int) part1 % 100;
l_time.hour= (int) (part2/10000L); part2%=10000L;
l_time.minute=(int) part2 / 100;
l_time.second=(int) part2 % 100;
timestamp=my_gmt_sec(&l_time);
}
else
timestamp=0;
#ifdef WORDS_BIGENDIAN
if (table->db_low_byte_first)
{
int4store(ptr,timestamp);
}
else
#endif
longstore(ptr,(uint32) timestamp);
}
double Field_timestamp::val_real(void)
{
return (double) Field_timestamp::val_int();
}
longlong Field_timestamp::val_int(void)
{
uint len,pos;
int part_time;
uint32 temp;
time_t time_arg;
struct tm *l_time;
longlong res;
struct tm tm_tmp;
#ifdef WORDS_BIGENDIAN
if (table->db_low_byte_first)
temp=uint4korr(ptr);
else
#endif
longget(temp,ptr);
if (temp == 0L) // No time
return(0); /* purecov: inspected */
time_arg=(time_t) temp;
localtime_r(&time_arg,&tm_tmp);
l_time=&tm_tmp;
res=(longlong) 0;
for (pos=len=0; len+1 < (uint) field_length ; len+=2,pos++)
{
bool year_flag=0;
switch (dayord.pos[pos]) {
case 0: part_time=l_time->tm_year % 100; year_flag=1 ; break;
case 1: part_time=l_time->tm_mon+1; break;
case 2: part_time=l_time->tm_mday; break;
case 3: part_time=l_time->tm_hour; break;
case 4: part_time=l_time->tm_min; break;
case 5: part_time=l_time->tm_sec; break;
default: part_time=0; break; /* purecov: deadcode */
}
if (year_flag && (field_length == 8 || field_length == 14))
{
res=res*(longlong) 10000+(part_time+
((part_time < YY_PART_YEAR) ? 2000 : 1900));
len+=2;
}
else
res=res*(longlong) 100+part_time;
}
return (longlong) res;
}
String *Field_timestamp::val_str(String *val_buffer,
String *val_ptr __attribute__((unused)))
{
uint pos;
int part_time;
uint32 temp;
time_t time_arg;
struct tm *l_time;
struct tm tm_tmp;
val_buffer->alloc(field_length+1);
char *to=(char*) val_buffer->ptr(),*end=to+field_length;
#ifdef WORDS_BIGENDIAN
if (table->db_low_byte_first)
temp=uint4korr(ptr);
else
#endif
longget(temp,ptr);
if (temp == 0L)
{ /* Zero time is "000000" */
VOID(strfill(to,field_length,'0'));
val_buffer->length(field_length);
return val_buffer;
}
time_arg=(time_t) temp;
localtime_r(&time_arg,&tm_tmp);
l_time=&tm_tmp;
for (pos=0; to < end ; pos++)
{
bool year_flag=0;
switch (dayord.pos[pos]) {
case 0: part_time=l_time->tm_year % 100; year_flag=1; break;
case 1: part_time=l_time->tm_mon+1; break;
case 2: part_time=l_time->tm_mday; break;
case 3: part_time=l_time->tm_hour; break;
case 4: part_time=l_time->tm_min; break;
case 5: part_time=l_time->tm_sec; break;
default: part_time=0; break; /* purecov: deadcode */
}
if (year_flag && (field_length == 8 || field_length == 14))
{
if (part_time < YY_PART_YEAR)
{
*to++='2'; *to++='0'; /* purecov: inspected */
}
else
{
*to++='1'; *to++='9';
}
}
*to++=(char) ('0'+((uint) part_time/10));
*to++=(char) ('0'+((uint) part_time % 10));
}
*to=0; // Safeguard
val_buffer->length((uint) (to-val_buffer->ptr()));
return val_buffer;
}
bool Field_timestamp::get_date(TIME *ltime, bool fuzzydate)
{
long temp;
#ifdef WORDS_BIGENDIAN
if (table->db_low_byte_first)
temp=uint4korr(ptr);
else
#endif
longget(temp,ptr);
if (temp == 0L)
{ /* Zero time is "000000" */
if (!fuzzydate)
return 1;
bzero((char*) ltime,sizeof(*ltime));
}
else
{
struct tm tm_tmp;
time_t time_arg= (time_t) temp;
localtime_r(&time_arg,&tm_tmp);
struct tm *start= &tm_tmp;
ltime->year= start->tm_year+1900;
ltime->month= start->tm_mon+1;
ltime->day= start->tm_mday;
ltime->hour= start->tm_hour;
ltime->minute= start->tm_min;
ltime->second= start->tm_sec;
ltime->second_part= 0;
ltime->neg= 0;
ltime->time_type=TIMESTAMP_FULL;
}
return 0;
}
bool Field_timestamp::get_time(TIME *ltime)
{
return Field_timestamp::get_date(ltime,0);
}
int Field_timestamp::cmp(const char *a_ptr, const char *b_ptr)
{
int32 a,b;
#ifdef WORDS_BIGENDIAN
if (table->db_low_byte_first)
{
a=sint4korr(a_ptr);
b=sint4korr(b_ptr);
}
else
#endif
{
longget(a,a_ptr);
longget(b,b_ptr);
}
return ((uint32) a < (uint32) b) ? -1 : ((uint32) a > (uint32) b) ? 1 : 0;
}
void Field_timestamp::sort_string(char *to,uint length __attribute__((unused)))
{
#ifdef WORDS_BIGENDIAN
if (!table->db_low_byte_first)
{
to[0] = ptr[0];
to[1] = ptr[1];
to[2] = ptr[2];
to[3] = ptr[3];
}
else
#endif
{
to[0] = ptr[3];
to[1] = ptr[2];
to[2] = ptr[1];
to[3] = ptr[0];
}
}
void Field_timestamp::sql_type(String &res) const
{
sprintf((char*) res.ptr(),"timestamp(%d)",(int) field_length);
res.length((uint) strlen(res.ptr()));
}
void Field_timestamp::set_time()
{
long tmp= (long) current_thd->query_start();
#ifdef WORDS_BIGENDIAN
if (table->db_low_byte_first)
{
int4store(ptr,tmp);
}
else
#endif
longstore(ptr,tmp);
}
/****************************************************************************
** time type
** In string context: HH:MM:SS
** In number context: HHMMSS
** Stored as a 3 byte unsigned int
****************************************************************************/
void Field_time::store(const char *from,uint len)
{
TIME ltime;
long tmp;
if (str_to_time(from,len,&ltime))
tmp=0L;
else
{
if (ltime.month)
ltime.day=0;
tmp=(ltime.day*24L+ltime.hour)*10000L+(ltime.minute*100+ltime.second);
if (tmp > 8385959)
{
tmp=8385959;
current_thd->cuted_fields++;
}
}
if (ltime.neg)
tmp= -tmp;
Field_time::store((longlong) tmp);
}
void Field_time::store(double nr)
{
long tmp;
if (nr > 8385959.0)
{
tmp=8385959L;
current_thd->cuted_fields++;
}
else if (nr < -8385959.0)
{
tmp= -8385959L;
current_thd->cuted_fields++;
}
else
{
tmp=(long) floor(fabs(nr)); // Remove fractions
if (nr < 0)
tmp= -tmp;
if (tmp % 100 > 59 || tmp/100 % 100 > 59)
{
tmp=0;
current_thd->cuted_fields++;
}
}
int3store(ptr,tmp);
}
void Field_time::store(longlong nr)
{
long tmp;
if (nr > (longlong) 8385959L)
{
tmp=8385959L;
current_thd->cuted_fields++;
}
else if (nr < (longlong) -8385959L)
{
tmp= -8385959L;
current_thd->cuted_fields++;
}
else
{
tmp=(long) nr;
if (tmp % 100 > 59 || tmp/100 % 100 > 59)
{
tmp=0;
current_thd->cuted_fields++;
}
}
int3store(ptr,tmp);
}
double Field_time::val_real(void)
{
uint32 j= (uint32) uint3korr(ptr);
return (double) j;
}
longlong Field_time::val_int(void)
{
return (longlong) sint3korr(ptr);
}
String *Field_time::val_str(String *val_buffer,
String *val_ptr __attribute__((unused)))
{
val_buffer->alloc(16);
long tmp=(long) sint3korr(ptr);
const char *sign="";
if (tmp < 0)
{
tmp= -tmp;
sign= "-";
}
sprintf((char*) val_buffer->ptr(),"%s%02d:%02d:%02d",
sign,(int) (tmp/10000), (int) (tmp/100 % 100),
(int) (tmp % 100));
val_buffer->length((uint) strlen(val_buffer->ptr()));
return val_buffer;
}
bool Field_time::get_time(TIME *ltime)
{
long tmp=(long) sint3korr(ptr);
ltime->neg=0;
if (tmp < 0)
{
ltime->neg= 1;
tmp=-tmp;
}
ltime->hour= (int) (tmp/10000);
tmp-=ltime->hour*10000;
ltime->minute= (int) tmp/100;
ltime->second= (int) tmp % 100;
ltime->second_part=0;
return 0;
}
int Field_time::cmp(const char *a_ptr, const char *b_ptr)
{
int32 a,b;
a=(int32) sint3korr(a_ptr);
b=(int32) sint3korr(b_ptr);
return (a < b) ? -1 : (a > b) ? 1 : 0;
}
void Field_time::sort_string(char *to,uint length __attribute__((unused)))
{
to[0] = (uchar) (ptr[2] ^ 128);
to[1] = ptr[1];
to[2] = ptr[0];
}
void Field_time::sql_type(String &res) const
{
res.set("time",4);
}
/****************************************************************************
** year type
** Save in a byte the year 0, 1901->2155
** Can handle 2 byte or 4 byte years!
****************************************************************************/
void Field_year::store(const char *from, uint len)
{
String tmp_str(from,len);
long nr= strtol(tmp_str.c_ptr(),NULL,10);
if (nr < 0 || nr >= 100 && nr <= 1900 || nr > 2155)
{
*ptr=0;
current_thd->cuted_fields++;
return;
}
else if (current_thd->count_cuted_fields && !test_if_int(from,len))
current_thd->cuted_fields++;
if (nr != 0 || len != 4)
{
if (nr < YY_PART_YEAR)
nr+=100; // 2000 - 2069
else if (nr > 1900)
nr-= 1900;
}
*ptr= (char) (unsigned char) nr;
}
void Field_year::store(double nr)
{
if (nr < 0.0 || nr >= 2155.0)
Field_year::store((longlong) -1);
else
Field_year::store((longlong) nr);
}
void Field_year::store(longlong nr)
{
if (nr < 0 || nr >= 100 && nr <= 1900 || nr > 2155)
{
*ptr=0;
current_thd->cuted_fields++;
return;
}
if (nr != 0 || field_length != 4) // 0000 -> 0; 00 -> 2000
{
if (nr < YY_PART_YEAR)
nr+=100; // 2000 - 2069
else if (nr > 1900)
nr-= 1900;
}
*ptr= (char) (unsigned char) nr;
}
double Field_year::val_real(void)
{
return (double) Field_year::val_int();
}
longlong Field_year::val_int(void)
{
int tmp= (int) ((uchar*) ptr)[0];
if (field_length != 4)
tmp%=100; // Return last 2 char
else if (tmp)
tmp+=1900;
return (longlong) tmp;
}
String *Field_year::val_str(String *val_buffer,
String *val_ptr __attribute__((unused)))
{
val_buffer->alloc(5);
val_buffer->length(field_length);
char *to=(char*) val_buffer->ptr();
sprintf(to,field_length == 2 ? "%02d" : "%04d",(int) Field_year::val_int());
return val_buffer;
}
void Field_year::sql_type(String &res) const
{
sprintf((char*) res.ptr(),"year(%d)",(int) field_length);
res.length((uint) strlen(res.ptr()));
}
/****************************************************************************
** date type
** In string context: YYYY-MM-DD
** In number context: YYYYMMDD
** Stored as a 4 byte unsigned int
****************************************************************************/
void Field_date::store(const char *from, uint len)
{
TIME l_time;
uint32 tmp;
if (str_to_TIME(from,len,&l_time,1) == TIMESTAMP_NONE)
tmp=0;
else
tmp=(uint32) l_time.year*10000L + (uint32) (l_time.month*100+l_time.day);
#ifdef WORDS_BIGENDIAN
if (table->db_low_byte_first)
{
int4store(ptr,tmp);
}
else
#endif
longstore(ptr,tmp);
}
void Field_date::store(double nr)
{
long tmp;
if (nr >= 19000000000000.0 && nr <= 99991231235959.0)
nr=floor(nr/1000000.0); // Timestamp to date
if (nr < 0.0 || nr > 99991231.0)
{
tmp=0L;
current_thd->cuted_fields++;
}
else
tmp=(long) rint(nr);
#ifdef WORDS_BIGENDIAN
if (table->db_low_byte_first)
{
int4store(ptr,tmp);
}
else
#endif
longstore(ptr,tmp);
}
void Field_date::store(longlong nr)
{
long tmp;
if (nr >= LL(19000000000000) && nr < LL(99991231235959))
nr=nr/LL(1000000); // Timestamp to date
if (nr < 0 || nr > LL(99991231))
{
tmp=0L;
current_thd->cuted_fields++;
}
else
tmp=(long) nr;
#ifdef WORDS_BIGENDIAN
if (table->db_low_byte_first)
{
int4store(ptr,tmp);
}
else
#endif
longstore(ptr,tmp);
}
double Field_date::val_real(void)
{
int32 j;
#ifdef WORDS_BIGENDIAN
if (table->db_low_byte_first)
j=sint4korr(ptr);
else
#endif
longget(j,ptr);
return (double) (uint32) j;
}
longlong Field_date::val_int(void)
{
int32 j;
#ifdef WORDS_BIGENDIAN
if (table->db_low_byte_first)
j=sint4korr(ptr);
else
#endif
longget(j,ptr);
return (longlong) (uint32) j;
}
String *Field_date::val_str(String *val_buffer,
String *val_ptr __attribute__((unused)))
{
val_buffer->alloc(field_length);
val_buffer->length(field_length);
int32 tmp;
#ifdef WORDS_BIGENDIAN
if (table->db_low_byte_first)
tmp=sint4korr(ptr);
else
#endif
longget(tmp,ptr);
sprintf((char*) val_buffer->ptr(),"%04d-%02d-%02d",
(int) ((uint32) tmp/10000L % 10000), (int) ((uint32) tmp/100 % 100),
(int) ((uint32) tmp % 100));
return val_buffer;
}
int Field_date::cmp(const char *a_ptr, const char *b_ptr)
{
int32 a,b;
#ifdef WORDS_BIGENDIAN
if (table->db_low_byte_first)
{
a=sint4korr(a_ptr);
b=sint4korr(b_ptr);
}
else
#endif
{
longget(a,a_ptr);
longget(b,b_ptr);
}
return ((uint32) a < (uint32) b) ? -1 : ((uint32) a > (uint32) b) ? 1 : 0;
}
void Field_date::sort_string(char *to,uint length __attribute__((unused)))
{
#ifdef WORDS_BIGENDIAN
if (!table->db_low_byte_first)
{
to[0] = ptr[0];
to[1] = ptr[1];
to[2] = ptr[2];
to[3] = ptr[3];
}
else
#endif
{
to[0] = ptr[3];
to[1] = ptr[2];
to[2] = ptr[1];
to[3] = ptr[0];
}
}
void Field_date::sql_type(String &res) const
{
res.set("date",4);
}
/****************************************************************************
** The new date type
** This is identical to the old date type, but stored on 3 bytes instead of 4
** In number context: YYYYMMDD
****************************************************************************/
void Field_newdate::store(const char *from,uint len)
{
TIME l_time;
long tmp;
if (str_to_TIME(from,len,&l_time,1) == TIMESTAMP_NONE)
tmp=0L;
else
tmp= l_time.day + l_time.month*32 + l_time.year*16*32;
int3store(ptr,tmp);
}
void Field_newdate::store(double nr)
{
if (nr < 0.0 || nr > 99991231235959.0)
Field_newdate::store((longlong) -1);
else
Field_newdate::store((longlong) rint(nr));
}
void Field_newdate::store(longlong nr)
{
int32 tmp;
if (nr >= LL(100000000) && nr <= LL(99991231235959))
nr=nr/LL(1000000); // Timestamp to date
if (nr < 0L || nr > 99991231L)
{
tmp=0;
current_thd->cuted_fields++;
}
else
{
tmp=(int32) nr;
if (tmp)
{
if (tmp < YY_PART_YEAR*10000L) // Fix short dates
tmp+= (uint32) 20000000L;
else if (tmp < 999999L)
tmp+= (uint32) 19000000L;
}
uint month= (uint) ((tmp/100) % 100);
uint day= (uint) (tmp%100);
if (month > 12 || day > 31)
{
tmp=0L; // Don't allow date to change
current_thd->cuted_fields++;
}
else
tmp= day + month*32 + (tmp/10000)*16*32;
}
int3store(ptr,(int32) tmp);
}
void Field_newdate::store_time(TIME *ltime,timestamp_type type)
{
long tmp;
if (type == TIMESTAMP_DATE || type == TIMESTAMP_FULL)
tmp=ltime->year*16*32+ltime->month*32+ltime->day;
else
{
tmp=0;
current_thd->cuted_fields++;
}
int3store(ptr,tmp);
}
double Field_newdate::val_real(void)
{
return (double) Field_newdate::val_int();
}
longlong Field_newdate::val_int(void)
{
ulong j= uint3korr(ptr);
j= (j % 32L)+(j / 32L % 16L)*100L + (j/(16L*32L))*10000L;
return (longlong) j;
}
String *Field_newdate::val_str(String *val_buffer,
String *val_ptr __attribute__((unused)))
{
val_buffer->alloc(field_length);
val_buffer->length(field_length);
uint32 tmp=(uint32) uint3korr(ptr);
int part;
char *pos=(char*) val_buffer->ptr()+10;
/* Open coded to get more speed */
*pos--=0; // End NULL
part=(int) (tmp & 31);
*pos--= (char) ('0'+part%10);
*pos--= (char) ('0'+part/10);
*pos--= '-';
part=(int) (tmp >> 5 & 15);
*pos--= (char) ('0'+part%10);
*pos--= (char) ('0'+part/10);
*pos--= '-';
part=(int) (tmp >> 9);
*pos--= (char) ('0'+part%10); part/=10;
*pos--= (char) ('0'+part%10); part/=10;
*pos--= (char) ('0'+part%10); part/=10;
*pos= (char) ('0'+part);
return val_buffer;
}
bool Field_newdate::get_date(TIME *ltime,bool fuzzydate)
{
if (is_null())
return 1;
uint32 tmp=(uint32) uint3korr(ptr);
bzero((char*) ltime,sizeof(*ltime));
ltime->day= tmp & 31;
ltime->month= (tmp >> 5) & 15;
ltime->year= (tmp >> 9);
ltime->time_type=TIMESTAMP_DATE;
return (!fuzzydate && (!ltime->month || !ltime->day)) ? 1 : 0;
}
bool Field_newdate::get_time(TIME *ltime)
{
return Field_newdate::get_date(ltime,0);
}
int Field_newdate::cmp(const char *a_ptr, const char *b_ptr)
{
uint32 a,b;
a=(uint32) uint3korr(a_ptr);
b=(uint32) uint3korr(b_ptr);
return (a < b) ? -1 : (a > b) ? 1 : 0;
}
void Field_newdate::sort_string(char *to,uint length __attribute__((unused)))
{
to[0] = ptr[2];
to[1] = ptr[1];
to[2] = ptr[0];
}
void Field_newdate::sql_type(String &res) const
{
res.set("date",4);
}
/****************************************************************************
** datetime type
** In string context: YYYY-MM-DD HH:MM:DD
** In number context: YYYYMMDDHHMMDD
** Stored as a 8 byte unsigned int. Should sometimes be change to a 6 byte int.
****************************************************************************/
void Field_datetime::store(const char *from,uint len)
{
longlong tmp=str_to_datetime(from,len,1);
#ifdef WORDS_BIGENDIAN
if (table->db_low_byte_first)
{
int8store(ptr,tmp);
}
else
#endif
longlongstore(ptr,tmp);
}
void Field_datetime::store(double nr)
{
if (nr < 0.0 || nr > 99991231235959.0)
{
nr=0.0;
current_thd->cuted_fields++;
}
Field_datetime::store((longlong) rint(nr));
}
void Field_datetime::store(longlong nr)
{
if (nr < 0 || nr > LL(99991231235959))
{
nr=0;
current_thd->cuted_fields++;
}
else
nr=fix_datetime(nr);
#ifdef WORDS_BIGENDIAN
if (table->db_low_byte_first)
{
int8store(ptr,nr);
}
else
#endif
longlongstore(ptr,nr);
}
void Field_datetime::store_time(TIME *ltime,timestamp_type type)
{
longlong tmp;
if (type == TIMESTAMP_DATE || type == TIMESTAMP_FULL)
tmp=((ltime->year*10000L+ltime->month*100+ltime->day)*LL(1000000)+
(ltime->hour*10000L+ltime->minute*100+ltime->second));
else
{
tmp=0;
current_thd->cuted_fields++;
}
#ifdef WORDS_BIGENDIAN
if (table->db_low_byte_first)
{
int8store(ptr,tmp);
}
else
#endif
longlongstore(ptr,tmp);
}
double Field_datetime::val_real(void)
{
return (double) Field_datetime::val_int();
}
longlong Field_datetime::val_int(void)
{
longlong j;
#ifdef WORDS_BIGENDIAN
if (table->db_low_byte_first)
j=sint8korr(ptr);
else
#endif
longlongget(j,ptr);
return j;
}
String *Field_datetime::val_str(String *val_buffer,
String *val_ptr __attribute__((unused)))
{
val_buffer->alloc(field_length);
val_buffer->length(field_length);
ulonglong tmp;
long part1,part2;
char *pos;
int part3;
#ifdef WORDS_BIGENDIAN
if (table->db_low_byte_first)
tmp=sint8korr(ptr);
else
#endif
longlongget(tmp,ptr);
/*
Avoid problem with slow longlong aritmetic and sprintf
*/
part1=(long) (tmp/LL(1000000));
part2=(long) (tmp - (ulonglong) part1*LL(1000000));
pos=(char*) val_buffer->ptr()+19;
*pos--=0;
*pos--= (char) ('0'+(char) (part2%10)); part2/=10;
*pos--= (char) ('0'+(char) (part2%10)); part3= (int) (part2 / 10);
*pos--= ':';
*pos--= (char) ('0'+(char) (part3%10)); part3/=10;
*pos--= (char) ('0'+(char) (part3%10)); part3/=10;
*pos--= ':';
*pos--= (char) ('0'+(char) (part3%10)); part3/=10;
*pos--= (char) ('0'+(char) part3);
*pos--= ' ';
*pos--= (char) ('0'+(char) (part1%10)); part1/=10;
*pos--= (char) ('0'+(char) (part1%10)); part1/=10;
*pos--= '-';
*pos--= (char) ('0'+(char) (part1%10)); part1/=10;
*pos--= (char) ('0'+(char) (part1%10)); part3= (int) (part1/10);
*pos--= '-';
*pos--= (char) ('0'+(char) (part3%10)); part3/=10;
*pos--= (char) ('0'+(char) (part3%10)); part3/=10;
*pos--= (char) ('0'+(char) (part3%10)); part3/=10;
*pos=(char) ('0'+(char) part3);
return val_buffer;
}
bool Field_datetime::get_date(TIME *ltime,bool fuzzydate)
{
longlong tmp=Field_datetime::val_int();
uint32 part1,part2;
part1=(uint32) (tmp/LL(1000000));
part2=(uint32) (tmp - (ulonglong) part1*LL(1000000));
ltime->time_type= TIMESTAMP_FULL;
ltime->neg= 0;
ltime->second_part= 0;
ltime->second= (int) (part2%100);
ltime->minute= (int) (part2/100%100);
ltime->hour= (int) (part2/10000);
ltime->day= (int) (part1%100);
ltime->month= (int) (part1/100%100);
ltime->year= (int) (part1/10000);
return (!fuzzydate && (!ltime->month || !ltime->day)) ? 1 : 0;
}
bool Field_datetime::get_time(TIME *ltime)
{
return Field_datetime::get_date(ltime,0);
}
int Field_datetime::cmp(const char *a_ptr, const char *b_ptr)
{
longlong a,b;
#ifdef WORDS_BIGENDIAN
if (table->db_low_byte_first)
{
a=sint8korr(a_ptr);
b=sint8korr(b_ptr);
}
else
#endif
{
longlongget(a,a_ptr);
longlongget(b,b_ptr);
}
return ((ulonglong) a < (ulonglong) b) ? -1 :
((ulonglong) a > (ulonglong) b) ? 1 : 0;
}
void Field_datetime::sort_string(char *to,uint length __attribute__((unused)))
{
#ifdef WORDS_BIGENDIAN
if (!table->db_low_byte_first)
{
to[0] = ptr[0];
to[1] = ptr[1];
to[2] = ptr[2];
to[3] = ptr[3];
to[4] = ptr[4];
to[5] = ptr[5];
to[6] = ptr[6];
to[7] = ptr[7];
}
else
#endif
{
to[0] = ptr[7];
to[1] = ptr[6];
to[2] = ptr[5];
to[3] = ptr[4];
to[4] = ptr[3];
to[5] = ptr[2];
to[6] = ptr[1];
to[7] = ptr[0];
}
}
void Field_datetime::sql_type(String &res) const
{
res.set("datetime",8);
}
/****************************************************************************
** string type
** A string may be varchar or binary
****************************************************************************/
/* Copy a string and fill with space */
void Field_string::store(const char *from,uint length)
{
#ifdef USE_TIS620
if (!binary_flag) {
ThNormalize((uchar *)ptr, field_length, (uchar *)from, length);
if (length < field_length) {
bfill(ptr + length, field_length - length, ' ');
}
}
#else
if (length <= field_length)
{
memcpy(ptr,from,length);
if (length < field_length)
bfill(ptr+length,field_length-length,' ');
}
else
{
memcpy(ptr,from,field_length);
if (current_thd->count_cuted_fields)
{ // Check if we loosed some info
const char *end=from+length;
for (from+=field_length ; from != end ; from++)
{
if (!isspace(*from))
{
current_thd->cuted_fields++;
break;
}
}
}
}
#endif /* USE_TIS620 */
}
void Field_string::store(double nr)
{
char buff[MAX_FIELD_WIDTH],*end;
int width=min(field_length,DBL_DIG+5);
sprintf(buff,"%-*.*g",width,max(width-5,0),nr);
end=strcend(buff,' ');
Field_string::store(buff,(uint) (end - buff));
}
void Field_string::store(longlong nr)
{
char buff[22];
char *end=longlong10_to_str(nr,buff,-10);
Field_string::store(buff,(uint) (end-buff));
}
double Field_string::val_real(void)
{
double value;
char save=ptr[field_length]; // Ok to patch record
ptr[field_length]=0;
value=atof(ptr);
ptr[field_length]=save;
return value;
}
longlong Field_string::val_int(void)
{
longlong value;
char save=ptr[field_length]; // Ok to patch record
ptr[field_length]=0;
value=strtoll(ptr,NULL,10);
ptr[field_length]=save;
return value;
}
String *Field_string::val_str(String *val_buffer __attribute__((unused)),
String *val_ptr)
{
char *end=ptr+field_length;
#ifdef WANT_TRUE_BINARY_STRINGS
if (!binary)
#endif
while (end > ptr && end[-1] == ' ')
end--;
val_ptr->set((const char*) ptr,(uint) (end - ptr));
return val_ptr;
}
int Field_string::cmp(const char *a_ptr, const char *b_ptr)
{
if (binary_flag)
return memcmp(a_ptr,b_ptr,field_length);
else
return my_sortcmp(a_ptr,b_ptr,field_length);
}
void Field_string::sort_string(char *to,uint length)
{
if (binary_flag)
memcpy((byte*) to,(byte*) ptr,(size_t) length);
else
{
#ifdef USE_STRCOLL
if (use_strcoll(default_charset_info)) {
uint tmp=my_strnxfrm(default_charset_info,
(unsigned char *)to, (unsigned char *) ptr,
length, field_length);
if (tmp < length)
bzero(to + tmp, length - tmp);
}
else
#endif
for (char *from=ptr,*end=ptr+length ; from != end ;)
*to++=(char) my_sort_order[(uint) (uchar) *from++];
}
}
void Field_string::sql_type(String &res) const
{
sprintf((char*) res.ptr(),"%s(%d)",
field_length > 3 &&
(table->db_options_in_use & HA_OPTION_PACK_RECORD) ?
"varchar" : "char",
(int) field_length);
res.length((uint) strlen(res.ptr()));
if (binary_flag)
res.append(" binary");
}
char *Field_string::pack(char *to, const char *from, uint max_length)
{
const char *end=from+min(field_length,max_length);
uchar length;
while (end > from && end[-1] == ' ')
end--;
*to= length=(uchar) (end-from);
memcpy(to+1, from, (int) length);
return to+1+length;
}
const char *Field_string::unpack(char *to, const char *from)
{
uint length= (uint) (uchar) *from++;
memcpy(to, from, (int) length);
bfill(to+length, field_length - length, ' ');
return from+length;
}
int Field_string::pack_cmp(const char *a, const char *b, uint length)
{
uint a_length= (uint) (uchar) *a++;
uint b_length= (uint) (uchar) *b++;
if (binary_flag)
{
int cmp= memcmp(a,b,min(a_length,b_length));
return cmp ? cmp : (int) (a_length - b_length);
}
return my_sortncmp(a,a_length, b,b_length);
}
int Field_string::pack_cmp(const char *b, uint length)
{
uint b_length= (uint) (uchar) *b++;
char *end= ptr + field_length;
while (end > ptr && end[-1] == ' ')
end--;
uint a_length = (uint) (end - ptr);
if (binary_flag)
{
int cmp= memcmp(ptr,b,min(a_length,b_length));
return cmp ? cmp : (int) (a_length - b_length);
}
return my_sortncmp(ptr,a_length, b, b_length);
}
uint Field_string::packed_col_length(const char *ptr, uint length)
{
if (length > 255)
return uint2korr(ptr)+2;
else
return (uint) ((uchar) *ptr)+1;
}
uint Field_string::max_packed_col_length(uint max_length)
{
return (max_length > 255 ? 2 : 1)+max_length;
}
/****************************************************************************
** VARCHAR type (Not available for the end user yet)
****************************************************************************/
void Field_varstring::store(const char *from,uint length)
{
#ifdef USE_TIS620
if (!binary_flag)
{
ThNormalize((uchar *) ptr+2, field_length, (uchar *) from, length);
}
#else
if (length <= field_length)
{
memcpy(ptr+2,from,length);
}
else
{
length=field_length;
memcpy(ptr+2,from,field_length);
current_thd->cuted_fields++;
}
#endif /* USE_TIS620 */
int2store(ptr,length);
}
void Field_varstring::store(double nr)
{
char buff[MAX_FIELD_WIDTH],*end;
int width=min(field_length,DBL_DIG+5);
sprintf(buff,"%-*.*g",width,max(width-5,0),nr);
end=strcend(buff,' ');
Field_varstring::store(buff,(uint) (end - buff));
}
void Field_varstring::store(longlong nr)
{
char buff[22];
char *end=longlong10_to_str(nr,buff,-10);
Field_varstring::store(buff,(uint) (end-buff));
}
double Field_varstring::val_real(void)
{
double value;
uint length=uint2korr(ptr)+2;
char save=ptr[length]; // Ok to patch record
ptr[length]=0;
value=atof(ptr+2);
ptr[length]=save;
return value;
}
longlong Field_varstring::val_int(void)
{
longlong value;
uint length=uint2korr(ptr)+2;
char save=ptr[length]; // Ok to patch record
ptr[length]=0;
value=strtoll(ptr+2,NULL,10);
ptr[length]=save;
return value;
}
String *Field_varstring::val_str(String *val_buffer __attribute__((unused)),
String *val_ptr)
{
uint length=uint2korr(ptr);
val_ptr->set((const char*) ptr+2,length);
return val_ptr;
}
int Field_varstring::cmp(const char *a_ptr, const char *b_ptr)
{
uint a_length=uint2korr(a_ptr);
uint b_length=uint2korr(b_ptr);
int diff;
if (binary_flag)
diff=memcmp(a_ptr+2,b_ptr+2,min(a_length,b_length));
else
diff=my_sortcmp(a_ptr+2,b_ptr+2,min(a_length,b_length));
return diff ? diff : (int) (a_length - b_length);
}
void Field_varstring::sort_string(char *to,uint length)
{
uint tot_length=uint2korr(ptr);
if (binary_flag)
memcpy((byte*) to,(byte*) ptr+2,(size_t) tot_length);
else
{
#ifdef USE_STRCOLL
if (use_strcoll(default_charset_info))
tot_length=my_strnxfrm(default_charset_info,
(unsigned char *) to, (unsigned char *)ptr+2,
length, tot_length);
else
{
#endif
char *tmp=to;
if (tot_length > length)
tot_length=length;
for (char *from=ptr+2,*end=from+tot_length ; from != end ;)
*tmp++=(char) my_sort_order[(uint) (uchar) *from++];
#ifdef USE_STRCOLL
}
#endif
}
if (tot_length < length)
bzero(to+tot_length,length-tot_length);
}
void Field_varstring::sql_type(String &res) const
{
sprintf((char*) res.ptr(),"varchar(%d)",(int) field_length);
res.length((uint) strlen(res.ptr()));
if (binary_flag)
res.append(" binary");
}
char *Field_varstring::pack(char *to, const char *from, uint max_length)
{
uint length=uint2korr(from);
if (length > max_length)
length=max_length;
*to++= (char) (length & 255);
if (max_length > 255)
*to++= (char) (length >> 8);
if (length)
memcpy(to, from+2, length);
return to+length;
}
const char *Field_varstring::unpack(char *to, const char *from)
{
uint length;
if (field_length > 255)
{
length= (uint) (uchar) (*to= *from++);
to[1]=0;
}
else
{
length=uint2korr(from);
to[0] = *from++;
to[1] = *from++;
}
if (length)
memcpy(to+2, from, length);
return from+length;
}
int Field_varstring::pack_cmp(const char *a, const char *b, uint key_length)
{
uint a_length;
uint b_length;
if (key_length > 255)
{
a_length=uint2korr(a); a+=2;
b_length=uint2korr(b); b+=2;
}
else
{
a_length= (uint) (uchar) *a++;
b_length= (uint) (uchar) *b++;
}
if (binary_flag)
{
int cmp= memcmp(a,b,min(a_length,b_length));
return cmp ? cmp : (int) (a_length - b_length);
}
return my_sortncmp(a,a_length, b,b_length);
}
int Field_varstring::pack_cmp(const char *b, uint key_length)
{
char *a=ptr+2;
uint a_length=uint2korr(ptr);
uint b_length;
if (key_length > 255)
{
b_length=uint2korr(b); b+=2;
}
else
{
b_length= (uint) (uchar) *b++;
}
if (binary_flag)
{
int cmp= memcmp(a,b,min(a_length,b_length));
return cmp ? cmp : (int) (a_length - b_length);
}
return my_sortncmp(a,a_length, b,b_length);
}
uint Field_varstring::packed_col_length(const char *ptr, uint length)
{
if (length > 255)
return uint2korr(ptr)+2;
else
return (uint) ((uchar) *ptr)+1;
}
uint Field_varstring::max_packed_col_length(uint max_length)
{
return (max_length > 255 ? 2 : 1)+max_length;
}
/****************************************************************************
** blob type
** A blob is saved as a length and a pointer. The length is stored in the
** packlength slot and may be from 1-4.
****************************************************************************/
Field_blob::Field_blob(char *ptr_arg, uchar *null_ptr_arg, uchar null_bit_arg,
enum utype unireg_check_arg, const char *field_name_arg,
struct st_table *table_arg,uint blob_pack_length,
bool binary_arg)
:Field_str(ptr_arg, (1L << min(blob_pack_length,3)*8)-1L,
null_ptr_arg, null_bit_arg, unireg_check_arg, field_name_arg,
table_arg),
packlength(blob_pack_length),binary_flag(binary_arg)
{
flags|= BLOB_FLAG;
if (binary_arg)
flags|=BINARY_FLAG;
if (table)
table->blob_fields++;
}
void Field_blob::store_length(uint32 number)
{
switch (packlength) {
case 1:
if (number > 255)
{
number=255;
current_thd->cuted_fields++;
}
ptr[0]= (uchar) number;
break;
case 2:
if (number > (uint16) ~0)
{
number= (uint16) ~0;
current_thd->cuted_fields++;
}
#ifdef WORDS_BIGENDIAN
if (table->db_low_byte_first)
{
int2store(ptr,(unsigned short) number);
}
else
#endif
shortstore(ptr,(unsigned short) number);
break;
case 3:
if (number > (uint32) (1L << 24))
{
number= (uint32) (1L << 24)-1L;
current_thd->cuted_fields++;
}
int3store(ptr,number);
break;
case 4:
#ifdef WORDS_BIGENDIAN
if (table->db_low_byte_first)
{
int4store(ptr,number);
}
else
#endif
longstore(ptr,number);
}
}
uint32 Field_blob::get_length(const char *pos)
{
switch (packlength) {
case 1:
return (uint32) (uchar) pos[0];
case 2:
{
uint16 tmp;
#ifdef WORDS_BIGENDIAN
if (table->db_low_byte_first)
tmp=sint2korr(pos);
else
#endif
shortget(tmp,pos);
return (uint32) tmp;
}
case 3:
return (uint32) uint3korr(pos);
case 4:
{
uint32 tmp;
#ifdef WORDS_BIGENDIAN
if (table->db_low_byte_first)
tmp=uint4korr(pos);
else
#endif
longget(tmp,pos);
return (uint32) tmp;
}
}
return 0; // Impossible
}
void Field_blob::store(const char *from,uint len)
{
if (!len)
{
bzero(ptr,Field_blob::pack_length());
}
else
{
#ifdef USE_TIS620
char *th_ptr=0;
#endif
Field_blob::store_length(len);
if (table->copy_blobs || len <= MAX_FIELD_WIDTH)
{ // Must make a copy
#ifdef USE_TIS620
if (!binary_flag)
{
/* If there isn't enough memory, use original string */
if ((th_ptr=(char * ) my_malloc(sizeof(char) * len,MYF(0))))
{
ThNormalize((uchar *) th_ptr, len, (uchar *) from, len);
from= (const char*) th_ptr;
}
}
#endif /* USE_TIS620 */
value.copy(from,len);
from=value.ptr();
#ifdef USE_TIS620
my_free(th_ptr,MYF(MY_ALLOW_ZERO_PTR));
#endif
}
bmove(ptr+packlength,(char*) &from,sizeof(char*));
}
}
void Field_blob::store(double nr)
{
value.set(nr);
Field_blob::store(value.ptr(),(uint) value.length());
}
void Field_blob::store(longlong nr)
{
value.set(nr);
Field_blob::store(value.ptr(), (uint) value.length());
}
double Field_blob::val_real(void)
{
char *blob;
memcpy_fixed(&blob,ptr+packlength,sizeof(char*));
if (!blob)
return 0.0;
uint32 length=get_length(ptr);
char save=blob[length]; // Ok to patch blob in NISAM
blob[length]=0;
double nr=atof(blob);
blob[length]=save;
return nr;
}
longlong Field_blob::val_int(void)
{
char *blob;
memcpy_fixed(&blob,ptr+packlength,sizeof(char*));
if (!blob)
return 0;
uint32 length=get_length(ptr);
char save=blob[length]; // Ok to patch blob in NISAM
blob[length]=0;
longlong nr=strtoll(blob,NULL,10);
blob[length]=save;
return nr;
}
String *Field_blob::val_str(String *val_buffer __attribute__((unused)),
String *val_ptr)
{
char *blob;
memcpy_fixed(&blob,ptr+packlength,sizeof(char*));
if (!blob)
val_ptr->set("",0); // A bit safer than ->length(0)
else
val_ptr->set((const char*) blob,get_length(ptr));
return val_ptr;
}
int Field_blob::cmp(const char *a,uint32 a_length, const char *b,
uint32 b_length)
{
int diff;
if (binary_flag)
diff=memcmp(a,b,min(a_length,b_length));
else
diff=my_sortcmp(a,b,min(a_length,b_length));
return diff ? diff : (int) (a_length - b_length);
}
int Field_blob::cmp(const char *a_ptr, const char *b_ptr)
{
char *blob1,*blob2;
memcpy_fixed(&blob1,a_ptr+packlength,sizeof(char*));
memcpy_fixed(&blob2,b_ptr+packlength,sizeof(char*));
return Field_blob::cmp(blob1,get_length(a_ptr),
blob2,get_length(b_ptr));
}
int Field_blob::cmp_offset(uint row_offset)
{
return Field_blob::cmp(ptr,ptr+row_offset);
}
int Field_blob::cmp_binary_offset(uint row_offset)
{
return cmp_binary(ptr, ptr+row_offset);
}
int Field_blob::cmp_binary(const char *a_ptr, const char *b_ptr,
uint32 max_length)
{
char *a,*b;
uint diff;
uint32 a_length,b_length;
memcpy_fixed(&a,a_ptr+packlength,sizeof(char*));
memcpy_fixed(&b,b_ptr+packlength,sizeof(char*));
a_length=get_length(a_ptr);
if (a_length > max_length)
a_length=max_length;
b_length=get_length(b_ptr);
if (b_length > max_length)
b_length=max_length;
diff=memcmp(a,b,min(a_length,b_length));
return diff ? diff : (int) (a_length - b_length);
}
/* The following is used only when comparing a key */
void Field_blob::get_key_image(char *buff,uint length)
{
length-=HA_KEY_BLOB_LENGTH;
uint32 blob_length=get_length(ptr);
char *blob;
if ((uint32) length > blob_length)
{
#ifdef HAVE_purify
bzero(buff+2+blob_length, (length-blob_length));
#endif
length=(uint) blob_length;
}
int2store(buff,length);
get_ptr(&blob);
memcpy(buff+2,blob,length);
}
void Field_blob::set_key_image(char *buff,uint length)
{
length=uint2korr(buff);
Field_blob::store(buff+2,length);
}
int Field_blob::key_cmp(const byte *key_ptr, uint max_key_length)
{
char *blob1;
uint blob_length=get_length(ptr);
max_key_length-=2;
memcpy_fixed(&blob1,ptr+packlength,sizeof(char*));
return Field_blob::cmp(blob1,min(blob_length, max_key_length),
(char*) key_ptr+2,uint2korr(key_ptr));
}
int Field_blob::key_cmp(const byte *a,const byte *b)
{
return Field_blob::cmp((char*) a+2,uint2korr(a),
(char*) b+2,uint2korr(b));
}
void Field_blob::sort_string(char *to,uint length)
{
char *blob;
uint blob_length=get_length();
#ifdef USE_STRCOLL
uint blob_org_length=blob_length;
#endif
if (!blob_length)
bzero(to,length);
else
{
if (blob_length > length)
blob_length=length;
memcpy_fixed(&blob,ptr+packlength,sizeof(char*));
if (binary_flag)
{
memcpy(to,blob,blob_length);
to+=blob_length;
}
else
{
#ifdef USE_STRCOLL
if (use_strcoll(default_charset_info))
{
blob_length=my_strnxfrm(default_charset_info,
(unsigned char *)to,(unsigned char *)blob,
length,blob_org_length);
if (blob_length >= length)
return;
to+=blob_length;
}
else
#endif
for (char *end=blob+blob_length ; blob != end ;)
*to++=(char) my_sort_order[(uint) (uchar) *blob++];
}
bzero(to,length-blob_length);
}
}
void Field_blob::sql_type(String &res) const
{
const char *str;
switch (packlength) {
default: str="tiny"; break;
case 2: str=""; break;
case 3: str="medium"; break;
case 4: str="long"; break;
}
res.set(str,(uint) strlen(str));
res.append(binary_flag ? "blob" : "text");
}
char *Field_blob::pack(char *to, const char *from, uint max_length)
{
char *save=ptr;
ptr=(char*) from;
uint32 length=get_length(); // Length of from string
if (length > max_length)
{
ptr=to;
length=max_length;
store_length(length); // Store max length
ptr=(char*) from;
}
else
memcpy(to,from,packlength); // Copy length
if (length)
{
get_ptr((char**) &from);
memcpy(to+packlength, from,length);
}
ptr=save; // Restore org row pointer
return to+packlength+length;
}
const char *Field_blob::unpack(char *to, const char *from)
{
memcpy(to,from,packlength);
uint32 length=get_length(from);
from+=packlength;
if (length)
memcpy_fixed(to+packlength, &from, sizeof(from));
else
bzero(to+packlength,sizeof(from));
return from+length;
}
/* Keys for blobs are like keys on varchars */
int Field_blob::pack_cmp(const char *a, const char *b, uint key_length)
{
uint a_length;
uint b_length;
if (key_length > 255)
{
a_length=uint2korr(a); a+=2;
b_length=uint2korr(b); b+=2;
}
else
{
a_length= (uint) (uchar) *a++;
b_length= (uint) (uchar) *b++;
}
if (binary_flag)
{
int cmp= memcmp(a,b,min(a_length,b_length));
return cmp ? cmp : (int) (a_length - b_length);
}
return my_sortncmp(a,a_length, b,b_length);
}
int Field_blob::pack_cmp(const char *b, uint key_length)
{
char *a;
memcpy_fixed(&a,ptr+packlength,sizeof(char*));
if (!a)
return key_length > 0 ? -1 : 0;
uint a_length=get_length(ptr);
uint b_length;
if (key_length > 255)
{
b_length=uint2korr(b); b+=2;
}
else
{
b_length= (uint) (uchar) *b++;
}
if (binary_flag)
{
int cmp= memcmp(a,b,min(a_length,b_length));
return cmp ? cmp : (int) (a_length - b_length);
}
return my_sortncmp(a,a_length, b,b_length);
}
/* Create a packed key that will be used for storage from a MySQL row */
char *Field_blob::pack_key(char *to, const char *from, uint max_length)
{
char *save=ptr;
ptr=(char*) from;
uint32 length=get_length(); // Length of from string
if (length > max_length)
length=max_length;
*to++= (uchar) length;
if (max_length > 255) // 2 byte length
*to++= (uchar) (length >> 8);
if (length)
{
get_ptr((char**) &from);
memcpy(to, from, length);
}
ptr=save; // Restore org row pointer
return to+length;
}
/* Create a packed key that will be used for storage from a MySQL key */
char *Field_blob::pack_key_from_key_image(char *to, const char *from,
uint max_length)
{
uint length=uint2korr(from);
if (length > max_length)
length=max_length;
*to++= (char) (length & 255);
if (max_length > 255)
*to++= (char) (length >> 8);
if (length)
memcpy(to, from+2, length);
return to+length;
}
uint Field_blob::packed_col_length(const char *ptr, uint length)
{
if (length > 255)
return uint2korr(ptr)+2;
else
return (uint) ((uchar) *ptr)+1;
}
uint Field_blob::max_packed_col_length(uint max_length)
{
return (max_length > 255 ? 2 : 1)+max_length;
}
/****************************************************************************
** enum type.
** This is a string which only can have a selection of different values.
** If one uses this string in a number context one gets the type number.
****************************************************************************/
enum ha_base_keytype Field_enum::key_type() const
{
switch (packlength) {
default: return HA_KEYTYPE_BINARY;
case 2: return HA_KEYTYPE_USHORT_INT;
case 3: return HA_KEYTYPE_UINT24;
case 4: return HA_KEYTYPE_ULONG_INT;
case 8: return HA_KEYTYPE_ULONGLONG;
}
}
void Field_enum::store_type(ulonglong value)
{
switch (packlength) {
case 1: ptr[0]= (uchar) value; break;
case 2:
#ifdef WORDS_BIGENDIAN
if (table->db_low_byte_first)
{
int2store(ptr,(unsigned short) value);
}
else
#endif
shortstore(ptr,(unsigned short) value);
break;
case 3: int3store(ptr,(long) value); break;
case 4:
#ifdef WORDS_BIGENDIAN
if (table->db_low_byte_first)
{
int4store(ptr,value);
}
else
#endif
longstore(ptr,(long) value);
break;
case 8:
#ifdef WORDS_BIGENDIAN
if (table->db_low_byte_first)
{
int8store(ptr,value);
}
else
#endif
longlongstore(ptr,value); break;
}
}
uint find_enum(TYPELIB *lib,const char *x, uint length)
{
const char *end=x+length;
while (end > x && isspace(end[-1]))
end--;
const char *i;
const char *j;
for (uint pos=0 ; (j=lib->type_names[pos]) ; pos++)
{
for (i=x ; i != end && toupper(*i) == toupper(*j) ; i++, j++) ;
if (i == end && ! *j)
return(pos+1);
}
return(0);
}
/*
** Note. Storing a empty string in a enum field gives a warning
** (if there isn't a empty value in the enum)
*/
void Field_enum::store(const char *from,uint length)
{
uint tmp=find_enum(typelib,from,length);
if (!tmp)
{
if (length < 6) // Can't be more than 99999 enums
{
/* This is for reading numbers with LOAD DATA INFILE */
char buff[7], *end;
const char *conv=from;
if (from[length])
{
strmake(buff, from, length);
conv=buff;
}
my_errno=0;
tmp=(uint) strtoul(conv,&end,10);
if (my_errno || end != conv+length || tmp > typelib->count)
{
tmp=0;
current_thd->cuted_fields++;
}
}
else
current_thd->cuted_fields++;
}
store_type((ulonglong) tmp);
}
void Field_enum::store(double nr)
{
Field_enum::store((longlong) nr);
}
void Field_enum::store(longlong nr)
{
if ((uint) nr > typelib->count || nr == 0)
{
current_thd->cuted_fields++;
nr=0;
}
store_type((ulonglong) (uint) nr);
}
double Field_enum::val_real(void)
{
return (double) Field_enum::val_int();
}
longlong Field_enum::val_int(void)
{
switch (packlength) {
case 1:
return (longlong) (uchar) ptr[0];
case 2:
{
uint16 tmp;
#ifdef WORDS_BIGENDIAN
if (table->db_low_byte_first)
tmp=sint2korr(ptr);
else
#endif
shortget(tmp,ptr);
return (longlong) tmp;
}
case 3:
return (longlong) uint3korr(ptr);
case 4:
{
uint32 tmp;
#ifdef WORDS_BIGENDIAN
if (table->db_low_byte_first)
tmp=uint4korr(ptr);
else
#endif
longget(tmp,ptr);
return (longlong) tmp;
}
case 8:
{
longlong tmp;
#ifdef WORDS_BIGENDIAN
if (table->db_low_byte_first)
tmp=sint8korr(ptr);
else
#endif
longlongget(tmp,ptr);
return tmp;
}
}
return 0; // impossible
}
String *Field_enum::val_str(String *val_buffer __attribute__((unused)),
String *val_ptr)
{
uint tmp=(uint) Field_enum::val_int();
if (!tmp || tmp > typelib->count)
val_ptr->length(0);
else
val_ptr->set((const char*) typelib->type_names[tmp-1],
(uint) strlen(typelib->type_names[tmp-1]));
return val_ptr;
}
int Field_enum::cmp(const char *a_ptr, const char *b_ptr)
{
char *old=ptr;
ptr=(char*) a_ptr;
ulonglong a=Field_enum::val_int();
ptr=(char*) b_ptr;
ulonglong b=Field_enum::val_int();
ptr=old;
return (a < b) ? -1 : (a > b) ? 1 : 0;
}
void Field_enum::sort_string(char *to,uint length __attribute__((unused)))
{
ulonglong value=Field_enum::val_int();
to+=packlength-1;
for (uint i=0 ; i < packlength ; i++)
{
*to-- = (uchar) (value & 255);
value>>=8;
}
}
void Field_enum::sql_type(String &res) const
{
res.length(0);
res.append("enum(");
bool flag=0;
for (const char **pos=typelib->type_names; *pos ; pos++)
{
if (flag)
res.append(',');
res.append('\'');
append_unescaped(&res,*pos);
res.append('\'');
flag=1;
}
res.append(')');
}
/****************************************************************************
** set type.
** This is a string which can have a collection of different values.
** Each string value is separated with a ','.
** For example "One,two,five"
** If one uses this string in a number context one gets the bits as a longlong
** number.
****************************************************************************/
ulonglong find_set(TYPELIB *lib,const char *x,uint length)
{
const char *end=x+length;
while (end > x && isspace(end[-1]))
end--;
ulonglong found=0;
if (x != end)
{
const char *start=x;
bool error=0;
for (;;)
{
const char *pos=start;
for (; pos != end && *pos != field_separator ; pos++) ;
uint find=find_enum(lib,start,(uint) (pos-start));
if (!find)
error=1;
else
found|= ((longlong) 1 << (find-1));
if (pos == end)
break;
start=pos+1;
}
if (error)
current_thd->cuted_fields++;
}
return found;
}
void Field_set::store(const char *from,uint length)
{
ulonglong tmp=find_set(typelib,from,length);
if (!tmp && length && length < 22)
{
/* This is for reading numbers with LOAD DATA INFILE */
char buff[22], *end;
const char *conv=from;
if (from[length])
{
strmake(buff, from, length);
conv=buff;
}
my_errno=0;
tmp=strtoull(conv,&end,10);
if (my_errno || end != conv+length ||
tmp > (ulonglong) (((longlong) 1 << typelib->count) - (longlong) 1))
tmp=0;
else
current_thd->cuted_fields--; // Remove warning from find_set
}
store_type(tmp);
}
void Field_set::store(longlong nr)
{
if ((ulonglong) nr > (ulonglong) (((longlong) 1 << typelib->count) -
(longlong) 1))
{
nr&= (longlong) (((longlong) 1 << typelib->count) - (longlong) 1);
current_thd->cuted_fields++;
}
store_type((ulonglong) nr);
}
String *Field_set::val_str(String *val_buffer,
String *val_ptr __attribute__((unused)))
{
ulonglong tmp=(ulonglong) Field_enum::val_int();
uint bitnr=0;
val_buffer->length(0);
while (tmp && bitnr < (uint) typelib->count)
{
if (tmp & 1)
{
if (val_buffer->length())
val_buffer->append(field_separator);
String str(typelib->type_names[bitnr],
(uint) strlen(typelib->type_names[bitnr]));
val_buffer->append(str);
}
tmp>>=1;
bitnr++;
}
return val_buffer;
}
void Field_set::sql_type(String &res) const
{
res.length(0);
res.append("set(");
bool flag=0;
for (const char **pos=typelib->type_names; *pos ; pos++)
{
if (flag)
res.append(',');
res.append('\'');
append_unescaped(&res,*pos);
res.append('\'');
flag=1;
}
res.append(')');
}
/* returns 1 if the fields are equally defined */
bool Field::eq_def(Field *field)
{
if (real_type() != field->real_type() || binary() != field->binary() ||
pack_length() != field->pack_length())
return 0;
return 1;
}
bool Field_enum::eq_def(Field *field)
{
if (!Field::eq_def(field))
return 0;
TYPELIB *from_lib=((Field_enum*) field)->typelib;
if (typelib->count < from_lib->count)
return 0;
for (uint i=0 ; i < from_lib->count ; i++)
if (my_strcasecmp(typelib->type_names[i],from_lib->type_names[i]))
return 0;
return 1;
}
bool Field_num::eq_def(Field *field)
{
if (!Field::eq_def(field))
return 0;
Field_num *from_num= (Field_num*) field;
if (unsigned_flag != from_num->unsigned_flag ||
zerofill && !from_num->zerofill && !zero_pack() ||
dec != from_num->dec)
return 0;
return 1;
}
/*****************************************************************************
** Handling of field and create_field
*****************************************************************************/
/*
Make a field from the .frm file info
*/
uint32 calc_pack_length(enum_field_types type,uint32 length)
{
switch (type) {
case FIELD_TYPE_STRING:
case FIELD_TYPE_DECIMAL: return (length);
case FIELD_TYPE_VAR_STRING: return (length+2);
case FIELD_TYPE_YEAR:
case FIELD_TYPE_TINY : return 1;
case FIELD_TYPE_SHORT : return 2;
case FIELD_TYPE_INT24:
case FIELD_TYPE_NEWDATE:
case FIELD_TYPE_TIME: return 3;
case FIELD_TYPE_TIMESTAMP:
case FIELD_TYPE_DATE:
case FIELD_TYPE_LONG : return 4;
case FIELD_TYPE_FLOAT : return sizeof(float);
case FIELD_TYPE_DOUBLE: return sizeof(double);
case FIELD_TYPE_DATETIME:
case FIELD_TYPE_LONGLONG: return 8; /* Don't crash if no longlong */
case FIELD_TYPE_NULL : return 0;
case FIELD_TYPE_TINY_BLOB: return 1+portable_sizeof_char_ptr;
case FIELD_TYPE_BLOB: return 2+portable_sizeof_char_ptr;
case FIELD_TYPE_MEDIUM_BLOB: return 3+portable_sizeof_char_ptr;
case FIELD_TYPE_LONG_BLOB: return 4+portable_sizeof_char_ptr;
case FIELD_TYPE_SET:
case FIELD_TYPE_ENUM: abort(); return 0; // This shouldn't happen
default: return 0;
}
return 0; // This shouldn't happen
}
uint pack_length_to_packflag(uint type)
{
switch (type) {
case 1: return f_settype((uint) FIELD_TYPE_TINY);
case 2: return f_settype((uint) FIELD_TYPE_SHORT);
case 3: return f_settype((uint) FIELD_TYPE_INT24);
case 4: return f_settype((uint) FIELD_TYPE_LONG);
case 8: return f_settype((uint) FIELD_TYPE_LONGLONG);
}
return 0; // This shouldn't happen
}
Field *make_field(char *ptr, uint32 field_length,
uchar *null_pos, uchar null_bit,
uint pack_flag,
Field::utype unireg_check,
TYPELIB *interval,
const char *field_name,
struct st_table *table)
{
if (!f_maybe_null(pack_flag))
{
null_pos=0;
null_bit=0;
}
if (f_is_alpha(pack_flag))
{
if (!f_is_packed(pack_flag))
return new Field_string(ptr,field_length,null_pos,null_bit,
unireg_check, field_name, table,
f_is_binary(pack_flag) != 0);
uint pack_length=calc_pack_length((enum_field_types)
f_packtype(pack_flag),
field_length);
if (f_is_blob(pack_flag))
return new Field_blob(ptr,null_pos,null_bit,
unireg_check, field_name, table,
pack_length,f_is_binary(pack_flag) != 0);
if (interval)
{
if (f_is_enum(pack_flag))
return new Field_enum(ptr,field_length,null_pos,null_bit,
unireg_check, field_name, table,
pack_length, interval);
else
return new Field_set(ptr,field_length,null_pos,null_bit,
unireg_check, field_name, table,
pack_length, interval);
}
}
switch ((enum enum_field_types) f_packtype(pack_flag)) {
case FIELD_TYPE_DECIMAL:
return new Field_decimal(ptr,field_length,null_pos,null_bit,
unireg_check, field_name, table,
f_decimals(pack_flag),
f_is_zerofill(pack_flag) != 0,
f_is_dec(pack_flag) == 0);
case FIELD_TYPE_FLOAT:
return new Field_float(ptr,field_length,null_pos,null_bit,
unireg_check, field_name, table,
f_decimals(pack_flag),
f_is_zerofill(pack_flag) != 0,
f_is_dec(pack_flag)== 0);
case FIELD_TYPE_DOUBLE:
return new Field_double(ptr,field_length,null_pos,null_bit,
unireg_check, field_name, table,
f_decimals(pack_flag),
f_is_zerofill(pack_flag) != 0,
f_is_dec(pack_flag)== 0);
case FIELD_TYPE_TINY:
return new Field_tiny(ptr,field_length,null_pos,null_bit,
unireg_check, field_name, table,
f_is_zerofill(pack_flag) != 0,
f_is_dec(pack_flag) == 0);
case FIELD_TYPE_SHORT:
return new Field_short(ptr,field_length,null_pos,null_bit,
unireg_check, field_name, table,
f_is_zerofill(pack_flag) != 0,
f_is_dec(pack_flag) == 0);
case FIELD_TYPE_INT24:
return new Field_medium(ptr,field_length,null_pos,null_bit,
unireg_check, field_name, table,
f_is_zerofill(pack_flag) != 0,
f_is_dec(pack_flag) == 0);
case FIELD_TYPE_LONG:
return new Field_long(ptr,field_length,null_pos,null_bit,
unireg_check, field_name, table,
f_is_zerofill(pack_flag) != 0,
f_is_dec(pack_flag) == 0);
case FIELD_TYPE_LONGLONG:
return new Field_longlong(ptr,field_length,null_pos,null_bit,
unireg_check, field_name, table,
f_is_zerofill(pack_flag) != 0,
f_is_dec(pack_flag) == 0);
case FIELD_TYPE_TIMESTAMP:
return new Field_timestamp(ptr,field_length,
unireg_check, field_name, table);
case FIELD_TYPE_YEAR:
return new Field_year(ptr,field_length,null_pos,null_bit,
unireg_check, field_name, table);
case FIELD_TYPE_DATE:
return new Field_date(ptr,null_pos,null_bit,
unireg_check, field_name, table);
case FIELD_TYPE_NEWDATE:
return new Field_newdate(ptr,null_pos,null_bit,
unireg_check, field_name, table);
case FIELD_TYPE_TIME:
return new Field_time(ptr,null_pos,null_bit,
unireg_check, field_name, table);
case FIELD_TYPE_DATETIME:
return new Field_datetime(ptr,null_pos,null_bit,
unireg_check, field_name, table);
case FIELD_TYPE_NULL:
default: // Impossible (Wrong version)
return new Field_null(ptr,field_length,unireg_check,field_name,table);
}
return 0; // Impossible (Wrong version)
}
/* Create a field suitable for create of table */
create_field::create_field(Field *old_field,Field *orig_field)
{
field= old_field;
field_name=change=old_field->field_name;
length= old_field->field_length;
flags= old_field->flags;
unireg_check=old_field->unireg_check;
pack_length=old_field->pack_length();
sql_type= old_field->real_type();
/* Fix if the original table had 4 byte pointer blobs */
if (flags & BLOB_FLAG)
pack_length= (pack_length- old_field->table->blob_ptr_size +
portable_sizeof_char_ptr);
decimals= old_field->decimals();
if (sql_type == FIELD_TYPE_STRING)
{
sql_type=old_field->type();
decimals=0;
}
if (flags & (ENUM_FLAG | SET_FLAG))
interval= ((Field_enum*) old_field)->typelib;
else
interval=0;
def=0;
if (!old_field->is_real_null() && ! (flags & BLOB_FLAG) &&
old_field->type() != FIELD_TYPE_TIMESTAMP && old_field->ptr &&
orig_field)
{
char buff[MAX_FIELD_WIDTH],*pos;
String tmp(buff,sizeof(buff));
/* Get the value from record[2] (the default value row) */
my_ptrdiff_t diff= (my_ptrdiff_t) (orig_field->table->rec_buff_length*2);
orig_field->move_field(diff); // Points now at record[2]
bool is_null=orig_field->is_real_null();
orig_field->val_str(&tmp,&tmp);
orig_field->move_field(-diff); // Back to record[0]
if (!is_null)
{
pos= (char*) sql_memdup(tmp.ptr(),tmp.length()+1);
pos[tmp.length()]=0;
def=new Item_string(pos,tmp.length());
}
}
}
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