lib/strings.in.h

   1 /* A substitute <strings.h>.
   2
   3    Copyright (C) 2007-2012 Free Software Foundation, Inc.
   4
   5    This program is free software; you can redistribute it and/or modify
   6    it under the terms of the GNU Lesser General Public License as published by
   7    the Free Software Foundation; either version 2, or (at your option)
   8    any later version.
   9
  10    This program is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13    GNU Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public License
  16    along with this program; if not, write to the Free Software Foundation,
  17    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
  18
  19 #ifndef _@GUARD_PREFIX@_STRINGS_H
  20
  21 #if __GNUC__ >= 3
  22 @PRAGMA_SYSTEM_HEADER@
  23 #endif
  24 @PRAGMA_COLUMNS@
  25
  26 /* Minix 3.1.8 has a bug: <sys/types.h> must be included before <strings.h>.
  27    But avoid namespace pollution on glibc systems.  */
  28 #if defined __minix && !defined __GLIBC__
  29 # include <sys/types.h>
  30 #endif
  31
  32 /* The include_next requires a split double-inclusion guard.  */
  33 #if @HAVE_STRINGS_H@
  34 # @INCLUDE_NEXT@ @NEXT_STRINGS_H@
  35 #endif
  36
  37 #ifndef _@GUARD_PREFIX@_STRINGS_H
  38 #define _@GUARD_PREFIX@_STRINGS_H
  39
  40 #if ! @HAVE_DECL_STRNCASECMP@
  41 /* Get size_t.  */
  42 # include <stddef.h>
  43 #endif
  44
  45
  46 /* The definitions of _GL_FUNCDECL_RPL etc. are copied here.  */
  47
  48 /* The definition of _GL_ARG_NONNULL is copied here.  */
  49
  50 /* The definition of _GL_WARN_ON_USE is copied here.  */
  51
  52 #ifdef __cplusplus
  53 extern "C" {
  54 #endif
  55
  56
  57   /* Find the index of the least-significant set bit.  */
  58 #if @GNULIB_FFS@
  59 # if !@HAVE_FFS@
  60 _GL_FUNCDECL_SYS (ffs, int, (int i));
  61 # endif
  62 _GL_CXXALIAS_SYS (ffs, int, (int i));
  63 _GL_CXXALIASWARN (ffs);
  64 #elif defined GNULIB_POSIXCHECK
  65 # undef ffs
  66 # if HAVE_RAW_DECL_FFS
  67 _GL_WARN_ON_USE (ffs, "ffs is not portable - use the ffs module");
  68 # endif
  69 #endif
  70
  71 /* Compare strings S1 and S2, ignoring case, returning less than, equal to or
  72    greater than zero if S1 is lexicographically less than, equal to or greater
  73    than S2.
  74    Note: This function does not work in multibyte locales.  */
  75 #if ! @HAVE_STRCASECMP@
  76 extern int strcasecmp (char const *s1, char const *s2)
  77      _GL_ARG_NONNULL ((1, 2));
  78 #endif
  79 #if defined GNULIB_POSIXCHECK
  80 /* strcasecmp() does not work with multibyte strings:
  81    POSIX says that it operates on "strings", and "string" in POSIX is defined
  82    as a sequence of bytes, not of characters.   */
  83 # undef strcasecmp
  84 # if HAVE_RAW_DECL_STRCASECMP
  85 _GL_WARN_ON_USE (strcasecmp, "strcasecmp cannot work correctly on character "
  86                  "strings in multibyte locales - "
  87                  "use mbscasecmp if you care about "
  88                  "internationalization, or use c_strcasecmp , "
  89                  "gnulib module c-strcase) if you want a locale "
  90                  "independent function");
  91 # endif
  92 #endif
  93
  94 /* Compare no more than N bytes of strings S1 and S2, ignoring case,
  95    returning less than, equal to or greater than zero if S1 is
  96    lexicographically less than, equal to or greater than S2.
  97    Note: This function cannot work correctly in multibyte locales.  */
  98 #if ! @HAVE_DECL_STRNCASECMP@
  99 extern int strncasecmp (char const *s1, char const *s2, size_t n)
 100      _GL_ARG_NONNULL ((1, 2));
 101 #endif
 102 #if defined GNULIB_POSIXCHECK
 103 /* strncasecmp() does not work with multibyte strings:
 104    POSIX says that it operates on "strings", and "string" in POSIX is defined
 105    as a sequence of bytes, not of characters.  */
 106 # undef strncasecmp
 107 # if HAVE_RAW_DECL_STRNCASECMP
 108 _GL_WARN_ON_USE (strncasecmp, "strncasecmp cannot work correctly on character "
 109                  "strings in multibyte locales - "
 110                  "use mbsncasecmp or mbspcasecmp if you care about "
 111                  "internationalization, or use c_strncasecmp , "
 112                  "gnulib module c-strcase) if you want a locale "
 113                  "independent function");
 114 # endif
 115 #endif
 116
 117
 118 #ifdef __cplusplus
 119 }
 120 #endif
 121
 122 #endif /* _@GUARD_PREFIX@_STRING_H */
 123 #endif /* _@GUARD_PREFIX@_STRING_H */