/home/master/UCL/VisualizationLibrary/src/vlCore/checks.hpp

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/*  Visualization Library                                                             */
/*  http://visualizationlibrary.org                                                   */
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/*  Copyright (c) 2005-2010, Michele Bosi                                             */
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#ifndef CHECK_INCLUDED
#define CHECK_INCLUDED

#include <vlCore/link_config.hpp>

// Required for IsDebuggerPresent()
#if defined(VL_PLATFORM_WINDOWS)
  #ifndef WIN32_LEAN_AND_MEAN
    #define WIN32_LEAN_AND_MEAN 1
  #endif
  #ifndef NOMINMAX
    #define NOMINMAX
  #endif
  #include <windows.h>
#endif

#if defined(__GNUG__) || defined(__MINGW32__) 
  #include <cstdio>
#endif

namespace vl
{
  VLCORE_EXPORT void log_failed_check(const char*, const char*, int);

  VLCORE_EXPORT void abort_vl();

  // Compile-time check
  #define VL_COMPILE_TIME_CHECK( expr ) typedef char compile_time_assert[ (expr) ? 1 : -1 ];

  #if defined(_DEBUG) || !defined(NDEBUG) || VL_FORCE_CHECKS == 1

    // Visual Studio
    #if defined(_MSC_VER) 
      #define VL_TRAP() { if (IsDebuggerPresent()) { __debugbreak(); } else ::vl::abort_vl(); }
    // GNU GCC
    #elif defined(__GNUG__) || defined(__MINGW32__) 
      #define VL_TRAP() { fflush(stdout); fflush(stderr); asm("int $0x3"); }
    #else 
      #define VL_TRAP() { ::vl::abort_vl(); }
    #endif

    #define VL_CHECK(expr) { if(!(expr)) { ::vl::log_failed_check(#expr,__FILE__,__LINE__); VL_TRAP() } }
    #define VL_WARN(expr)  { if(!(expr)) { ::vl::log_failed_check(#expr,__FILE__,__LINE__); } }

    // MSDN checked iterators
    // #define _SECURE_SCL 1
  #else
    #define VL_WARN(expr) {}
    #define VL_CHECK(expr) {}
    #define VL_TRAP() {}

    // MSDN checked iterators
    // #define _SECURE_SCL 0
  #endif
}

#endif