mariadb/include/rem0cmp.ic
marko 41b29de7ac branches/innodb+: Merge revisions 5091:5143 from branches/zip:
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  r5092 | marko | 2009-05-25 09:54:17 +0300 (Mon, 25 May 2009) | 1 line

  branches/zip: Adjust some function comments after r5091.
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  r5100 | marko | 2009-05-25 12:09:45 +0300 (Mon, 25 May 2009) | 1 line

  branches/zip: Split some long lines that were introduced in r5091.
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  r5101 | marko | 2009-05-25 12:42:47 +0300 (Mon, 25 May 2009) | 2 lines

  branches/zip: Introduce the macro TEMP_INDEX_PREFIX_STR.
  This is to avoid triggering an error in Doxygen.
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  r5102 | marko | 2009-05-25 13:47:14 +0300 (Mon, 25 May 2009) | 1 line

  branches/zip: Add missing file comments.
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  r5103 | marko | 2009-05-25 13:52:29 +0300 (Mon, 25 May 2009) | 10 lines

  branches/zip: Add @file comments, and convert decorative
  /*********************************
  comments to Doxygen /** style like this:
  /*****************************//**

  This conversion was performed by the following command:

  perl -i -e 'while(<ARGV>){if (m|^/\*{30}\**$|) {
  s|\*{4}$|//**| if ++$com>1; $_ .= "\@file $ARGV\n" if $com==2}
  print; if(eof){$.=0;undef $com}}' */*[ch] include/univ.i
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  r5104 | marko | 2009-05-25 14:39:07 +0300 (Mon, 25 May 2009) | 2 lines

  branches/zip: Revert ut0auxconf_* to r5102,
  that is, make Doxygen ignore these test programs.
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  r5105 | marko | 2009-05-25 14:52:20 +0300 (Mon, 25 May 2009) | 2 lines

  branches/zip: Enclose some #error checks inside #ifndef DOXYGEN
  to prevent bogus Doxygen errors.
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  r5106 | marko | 2009-05-25 16:09:24 +0300 (Mon, 25 May 2009) | 2 lines

  branches/zip: Add some Doxygen comments, mainly to structs, typedefs,
  macros and global variables.  Many more to go.
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  r5108 | marko | 2009-05-26 00:32:35 +0300 (Tue, 26 May 2009) | 2 lines

  branches/zip: lexyy.c: Remove the inadvertently added @file directive.
  There is nothing for Doxygen to see in this file, move along.
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  r5125 | marko | 2009-05-26 16:28:49 +0300 (Tue, 26 May 2009) | 3 lines

  branches/zip: Add some Doxygen comments for many structs, typedefs,
  #defines and global variables.  Many are still missing.
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  r5134 | marko | 2009-05-27 09:08:43 +0300 (Wed, 27 May 2009) | 1 line

  branches/zip: Add some Doxygen @return comments.
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  r5139 | marko | 2009-05-27 10:01:40 +0300 (Wed, 27 May 2009) | 1 line

  branches/zip: Add Doxyfile.
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  r5143 | marko | 2009-05-27 10:57:25 +0300 (Wed, 27 May 2009) | 3 lines

  branches/zip: buf0buf.h, Doxyfile: Fix the Doxygen translation.
  @defgroup is for source code modules, not for field groups.
  Tell Doxygen to expand the UT_LIST declarations.
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2009-05-27 09:52:16 +00:00

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/*****************************************************************************
Copyright (c) 1994, 2009, Innobase Oy. All Rights Reserved.
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; version 2 of the License.
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
*****************************************************************************/
/*******************************************************************//**
@file include/rem0cmp.ic
Comparison services for records
Created 7/1/1994 Heikki Tuuri
************************************************************************/
/*************************************************************//**
This function is used to compare two data fields for which we know the
data type.
@return 1, 0, -1, if data1 is greater, equal, less than data2, respectively */
UNIV_INLINE
int
cmp_data_data(
/*==========*/
ulint mtype, /*!< in: main type */
ulint prtype, /*!< in: precise type */
const byte* data1, /*!< in: data field (== a pointer to a memory
buffer) */
ulint len1, /*!< in: data field length or UNIV_SQL_NULL */
const byte* data2, /*!< in: data field (== a pointer to a memory
buffer) */
ulint len2) /*!< in: data field length or UNIV_SQL_NULL */
{
return(cmp_data_data_slow(mtype, prtype, data1, len1, data2, len2));
}
/*************************************************************//**
This function is used to compare two dfields where at least the first
has its data type field set.
@return 1, 0, -1, if dfield1 is greater, equal, less than dfield2,
respectively */
UNIV_INLINE
int
cmp_dfield_dfield(
/*==============*/
const dfield_t* dfield1,/*!< in: data field; must have type field set */
const dfield_t* dfield2)/*!< in: data field */
{
const dtype_t* type;
ut_ad(dfield_check_typed(dfield1));
type = dfield_get_type(dfield1);
return(cmp_data_data(type->mtype, type->prtype,
(const byte*) dfield_get_data(dfield1),
dfield_get_len(dfield1),
(const byte*) dfield_get_data(dfield2),
dfield_get_len(dfield2)));
}
/*************************************************************//**
This function is used to compare two physical records. Only the common
first fields are compared.
@return 1, 0 , -1 if rec1 is greater, equal, less, respectively, than
rec2; only the common first fields are compared */
UNIV_INLINE
int
cmp_rec_rec(
/*========*/
const rec_t* rec1, /*!< in: physical record */
const rec_t* rec2, /*!< in: physical record */
const ulint* offsets1,/*!< in: rec_get_offsets(rec1, index) */
const ulint* offsets2,/*!< in: rec_get_offsets(rec2, index) */
dict_index_t* index) /*!< in: data dictionary index */
{
ulint match_f = 0;
ulint match_b = 0;
return(cmp_rec_rec_with_match(rec1, rec2, offsets1, offsets2, index,
&match_f, &match_b));
}