assertion.h Source File

00001 /*
00002   File: assertion.h
00003 
00004   Copyright(C) C. Kotterink, Computed Graphics
00005 */
00006 #ifndef ASSERT_H
00007 #define ASSERT_H
00008 
00009 #include<stdexcept>
00010 
00011 #ifdef DEBUG
00012 #define ASSERT(X) if (!(X)) { runtime_error("Assertion failed: " #X); }
00013 #else
00014 #define ASSERT(X)
00015 #endif
00016 
00017 // STATIC_ASSERT
00018 template <bool> struct STATIC_ASSERTION_FAILURE;
00019 
00023 template <> struct STATIC_ASSERTION_FAILURE<true>{};
00024 
00027 template<int> struct static_assert_test{};
00028 
00029 #define ASSERT_JOIN( X, Y ) DO_ASSERT_JOIN( X, Y )
00030 #define DO_ASSERT_JOIN( X, Y ) X##Y
00031 #define STATIC_ASSERT( B ) \
00032   enum { ASSERT_JOIN(static_assert_test, __LINE__) \
00033       = sizeof(STATIC_ASSERTION_FAILURE< ( B ) >) }
00034 
00035 #endif