Bug#53445: Build with -Wall and fix warnings that it generates

Apart strict-aliasing warnings, fix the remaining warnings
generated by GCC 4.4.4 -Wall and -Wextra flags.

One major source of warnings was the in-house function my_bcmp
which (unconventionally) took pointers to unsigned characters
as the byte sequences to be compared. Since my_bcmp and bcmp
are deprecated functions whose only difference with memcmp is
the return value, every use of the function is replaced with
memcmp as the special return value wasn't actually being used
by any caller.

There were also various other warnings, mostly due to type
mismatches, missing return values, missing prototypes, dead
code (unreachable) and ignored return values.
This commit is contained in:
Davi Arnaut 2010-07-02 15:30:47 -03:00
commit 93fb8bb235
67 changed files with 257 additions and 362 deletions

View file

@ -5780,7 +5780,7 @@ int read_command(struct st_command** command_ptr)
(struct st_command*) my_malloc(sizeof(*command),
MYF(MY_WME|MY_ZEROFILL))) ||
insert_dynamic(&q_lines, (uchar*) &command))
die(NullS);
die("Out of memory");
command->type= Q_UNKNOWN;
read_command_buf[0]= 0;
@ -6260,7 +6260,7 @@ void init_win_path_patterns()
}
if (insert_dynamic(&patterns, (uchar*) &p))
die(NullS);
die("Out of memory");
DBUG_PRINT("info", ("p: %s", p));
while (*p)
@ -9331,8 +9331,7 @@ REPLACE *init_replace(char * *from, char * *to,uint count,
for (i=1 ; i <= found_sets ; i++)
{
pos=from[found_set[i-1].table_offset];
rep_str[i].found= !bcmp((const uchar*) pos,
(const uchar*) "\\^", 3) ? 2 : 1;
rep_str[i].found= !memcmp(pos, "\\^", 3) ? 2 : 1;
rep_str[i].replace_string=to_array[found_set[i-1].table_offset];
rep_str[i].to_offset=found_set[i-1].found_offset-start_at_word(pos);
rep_str[i].from_offset=found_set[i-1].found_offset-replace_len(pos)+
@ -9460,8 +9459,8 @@ void copy_bits(REP_SET *to,REP_SET *from)
int cmp_bits(REP_SET *set1,REP_SET *set2)
{
return bcmp((uchar*) set1->bits,(uchar*) set2->bits,
sizeof(uint) * set1->size_of_bits);
return memcmp(set1->bits, set2->bits,
sizeof(uint) * set1->size_of_bits);
}
@ -9530,17 +9529,15 @@ int find_found(FOUND_SET *found_set,uint table_offset, int found_offset)
uint start_at_word(char * pos)
{
return (((!bcmp((const uchar*) pos, (const uchar*) "\\b",2) && pos[2]) ||
!bcmp((const uchar*) pos, (const uchar*) "\\^", 2)) ? 1 : 0);
return (((!memcmp(pos, "\\b",2) && pos[2]) ||
!memcmp(pos, "\\^", 2)) ? 1 : 0);
}
uint end_of_word(char * pos)
{
char * end=strend(pos);
return ((end > pos+2 && !bcmp((const uchar*) end-2,
(const uchar*) "\\b", 2)) ||
(end >= pos+2 && !bcmp((const uchar*) end-2,
(const uchar*) "\\$",2))) ? 1 : 0;
return ((end > pos+2 && !memcmp(end-2, "\\b", 2)) ||
(end >= pos+2 && !memcmp(end-2, "\\$",2))) ? 1 : 0;
}
/****************************************************************************