vcl_cassert.h

来自「InsightToolkit-1.4.0(有大量的优化算法程序)」· C头文件 代码 · 共 50 行

// This is vcl/vcl_cassert.h

//- The <cassert> header does not
//- have inclusion guards. The
//- C and C++ standards say so.

//:
// \file
// \author fsm

#include "vcl_compiler.h"

// This header file should do something like this:
//   #undef assert
//   #ifdef NDEBUG
//   # define assert(x) ((void) 0)
//   #else
//   extern void vcl_cassert_failure(char const *, int, char const *);
//   # define assert(x) do { if (!(x)) vcl_cassert_failure(__FILE__, __LINE__, #x); } while (false)
//   #endif
// If the system/compiler version works, use that instead.

// Win32 doesn't work as you can't set a bp on abort
#if 0 // _WIN32
#undef assert
#ifdef NDEBUG
# define assert(x) ((void) 0)
#else
extern void vcl_cassert_failure(char const *, int, char const *);
# define assert(x) do { if (!(x)) vcl_cassert_failure(__FILE__, __LINE__, #x); } while (false)
#endif

#ifdef VCL_METRO_WERKS
// for some reason, MW's <cassert> doesn't have its own printf() and abort() declarations.
# include <vcl_cstdio.h>
# include <vcl_cstdlib.h>
#endif

#else
#if !VCL_CXX_HAS_HEADER_CASSERT
# include <assert.h>
#else
# include "iso/vcl_cassert.h"
#endif
#endif

// fsm: There should not be a vcl_assert macro as there is no
// std::assert symbol. If your assert macro is broken, fix it
// here using #undef and #define.