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 #  endif
  36
  37 #  ifdef __cplusplus
  38 #    include <cstdarg>
  39 #    include <cstdio>
  40 #  else
  41 #    include <stdarg.h>
  42 #    include <stdio.h>
  43 #  endif
  44
  45 #  include "libmemcached/backtrace.hpp"
  46
  47 #  define assert_msg(__expr, __mesg) \
  48     do { \
  49       if (not(__expr)) { \
  50         fprintf(stderr, "\n%s:%d Assertion \"%s\" failed for function \"%s\" likely for %s\n", \
  51                 __FILE__, __LINE__, #__expr, __func__, (#__mesg)); \
  52         custom_backtrace(); \
  53         abort(); \
  54       } \
  55     } while (0)
  56
  57 #  define assert_vmsg(__expr, __mesg, ...) \
  58     do { \
  59       if (not(__expr)) { \
  60         size_t ask = snprintf(0, 0, (__mesg), __VA_ARGS__); \
  61         ask++; \
  62         char *_error_message = (char *) alloca(sizeof(char) * ask); \
  63         size_t _error_message_size = snprintf(_error_message, ask, (__mesg), __VA_ARGS__); \
  64         fprintf(stderr, "\n%s:%d Assertion '%s' failed for function '%s' [ %.*s ]\n", __FILE__, \
  65                 __LINE__, #__expr, __func__, int(_error_message_size), _error_message); \
  66         custom_backtrace(); \
  67         abort(); \
  68       } \
  69     } while (0)
  70
  71 #endif // NDEBUG