git.m6w6.name Git - m6w6/libmemcached/blob - src/libmemcached/assert.hpp

   1 /*
   2     +--------------------------------------------------------------------+
   3     | libmemcached - C/C++ Client Library for memcached                  |
   4     +--------------------------------------------------------------------+
   5     | Redistribution and use in source and binary forms, with or without |
   6     | modification, are permitted under the terms of the BSD license.    |
   7     | You should have received a copy of the license in a bundled file   |
   8     | named LICENSE; in case you did not receive a copy you can review   |
   9     | the terms online at: https://opensource.org/licenses/BSD-3-Clause  |
  10     +--------------------------------------------------------------------+
  11     | Copyright (c) 2006-2014 Brian Aker   https://datadifferential.com/ |
  12     | Copyright (c) 2020 Michael Wallner   <mike@php.net>                |
  13     +--------------------------------------------------------------------+
  14 */
  15
  16 #pragma once
  17
  18 #ifdef __cplusplus
  19 #  include <cassert>
  20 #else
  21 #  include <assert.h>
  22 #endif // __cplusplus
  23
  24 #ifdef NDEBUG
  25 #  define assert_msg(__expr, __mesg) \
  26     (void) (__expr); \
  27     (void) (__mesg);
  28 #  define assert_vmsg(__expr, __mesg, ...) \
  29     (void) (__expr); \
  30     (void) (__mesg);
  31 #else
  32
  33 #  ifdef _WIN32
  34 #    include <malloc.h>
  35 #  elif HAVE_ALLOCA_H
  36 #    include <alloca.h>
  37 #  endif
  38
  39 #  ifdef __cplusplus
  40 #    include <cstdarg>
  41 #    include <cstdio>
  42 #  else
  43 #    include <stdarg.h>
  44 #    include <stdio.h>
  45 #  endif
  46
  47 #  include "libmemcached/backtrace.hpp"
  48
  49 #  define assert_msg(__expr, __mesg) \
  50     do { \
  51       if (not(__expr)) { \
  52         fprintf(stderr, "\n%s:%d Assertion \"%s\" failed for function \"%s\" likely for %s\n", \
  53                 __FILE__, __LINE__, #__expr, __func__, (#__mesg)); \
  54         custom_backtrace(); \
  55         abort(); \
  56       } \
  57     } while (0)
  58
  59 #  define assert_vmsg(__expr, __mesg, ...) \
  60     do { \
  61       if (not(__expr)) { \
  62         size_t ask = snprintf(0, 0, (__mesg), __VA_ARGS__); \
  63         ask++; \
  64         char *_error_message = (char *) alloca(sizeof(char) * ask); \
  65         size_t _error_message_size = snprintf(_error_message, ask, (__mesg), __VA_ARGS__); \
  66         fprintf(stderr, "\n%s:%d Assertion '%s' failed for function '%s' [ %.*s ]\n", __FILE__, \
  67                 __LINE__, #__expr, __func__, int(_error_message_size), _error_message); \
  68         custom_backtrace(); \
  69         abort(); \
  70       } \
  71     } while (0)
  72
  73 #endif // NDEBUG