src/src/pcre/pcre_globals.c

   1 /* $Cambridge: exim/src/src/pcre/pcre_globals.c,v 1.4 2007/01/23 15:08:45 ph10 Exp $ */
   2
   3 /*************************************************
   4 *      Perl-Compatible Regular Expressions       *
   5 *************************************************/
   6
   7 /* PCRE is a library of functions to support regular expressions whose syntax
   8 and semantics are as close as possible to those of the Perl 5 language.
   9
  10                        Written by Philip Hazel
  11            Copyright (c) 1997-2006 University of Cambridge
  12
  13 -----------------------------------------------------------------------------
  14 Redistribution and use in source and binary forms, with or without
  15 modification, are permitted provided that the following conditions are met:
  16
  17     * Redistributions of source code must retain the above copyright notice,
  18       this list of conditions and the following disclaimer.
  19
  20     * Redistributions in binary form must reproduce the above copyright
  21       notice, this list of conditions and the following disclaimer in the
  22       documentation and/or other materials provided with the distribution.
  23
  24     * Neither the name of the University of Cambridge nor the names of its
  25       contributors may be used to endorse or promote products derived from
  26       this software without specific prior written permission.
  27
  28 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  29 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  30 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  31 ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
  32 LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  33 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  34 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  35 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  36 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  37 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  38 POSSIBILITY OF SUCH DAMAGE.
  39 -----------------------------------------------------------------------------
  40 */
  41
  42
  43 /* This module contains global variables that are exported by the PCRE library.
  44 PCRE is thread-clean and doesn't use any global variables in the normal sense.
  45 However, it calls memory allocation and freeing functions via the four
  46 indirections below, and it can optionally do callouts, using the fifth
  47 indirection. These values can be changed by the caller, but are shared between
  48 all threads. However, when compiling for Virtual Pascal, things are done
  49 differently, and global variables are not used (see pcre.in). */
  50
  51
  52 #include "pcre_internal.h"
  53
  54
  55 #ifndef VPCOMPAT
  56
  57 /**************************************************************************
  58 This code used to be here for use when compiling as a C++ library. However,
  59 according to Dair Grant it is not needed: "
  60
  61  Including 'extern "C"' in the declaration generates an "initialized and
  62  declared `extern'" warning from gcc 4.0.1. Since we include pcre_internal.h,
  63  which includes pcre.h, which declares these prototypes within an extern "C" {}
  64  block, we shouldn't need the prefix here.
  65
  66 So, from Release 7.0 I have cut this out.
  67
  68 #ifdef __cplusplus
  69 extern "C" void *(*pcre_malloc)(size_t) = malloc;
  70 extern "C" void  (*pcre_free)(void *) = free;
  71 extern "C" void *(*pcre_stack_malloc)(size_t) = malloc;
  72 extern "C" void  (*pcre_stack_free)(void *) = free;
  73 extern "C" int   (*pcre_callout)(pcre_callout_block *) = NULL;
  74 #else
  75 **************************************************************************/
  76
  77 void *(*pcre_malloc)(size_t) = malloc;
  78 void  (*pcre_free)(void *) = free;
  79 void *(*pcre_stack_malloc)(size_t) = malloc;
  80 void  (*pcre_stack_free)(void *) = free;
  81 int   (*pcre_callout)(pcre_callout_block *) = NULL;
  82 #endif
  83
  84 /* End of pcre_globals.c */