crnlib/crn_assert.h

@@ -0,0 +1,61 @@
+// File: crn_assert.h
+// See Copyright Notice and license at the end of inc/crnlib.h
+#pragma once
+
+const unsigned int CRNLIB_FAIL_EXCEPTION_CODE = 256U;
+void crnlib_enable_fail_exceptions(bool enabled);
+
+void crnlib_assert(const char* pExp, const char* pFile, unsigned line);
+void crnlib_fail(const char* pExp, const char* pFile, unsigned line);
+
+#ifdef NDEBUG
+   #define CRNLIB_ASSERT(x) ((void)0)
+   #undef  CRNLIB_ASSERTS_ENABLED
+#else
+   #define CRNLIB_ASSERT(_exp) (void)( (!!(_exp)) || (crnlib_assert(#_exp, __FILE__, __LINE__), 0) )
+   #define CRNLIB_ASSERTS_ENABLED
+#endif
+
+#define CRNLIB_VERIFY(_exp) (void)( (!!(_exp)) || (crnlib_assert(#_exp, __FILE__, __LINE__), 0) )
+
+#define CRNLIB_FAIL(msg) do { crnlib_fail(#msg, __FILE__, __LINE__); } while(0)
+
+#define CRNLIB_ASSERT_OPEN_RANGE(x, l, h) CRNLIB_ASSERT((x >= l) && (x < h))
+#define CRNLIB_ASSERT_CLOSED_RANGE(x, l, h) CRNLIB_ASSERT((x >= l) && (x <= h))
+
+void trace(const char* pFmt, va_list args);
+void trace(const char* pFmt, ...);
+
+// Borrowed from boost libraries.
+template <bool x>  struct crnlib_assume_failure;
+template <> struct crnlib_assume_failure<true> { enum { blah = 1 }; };
+template<int x> struct crnlib_assume_try { };
+
+#define CRNLIB_JOINER_FINAL(a, b) a##b
+#define CRNLIB_JOINER(a, b) CRNLIB_JOINER_FINAL(a, b)
+#define CRNLIB_JOIN(a, b) CRNLIB_JOINER(a, b)
+#define CRNLIB_ASSUME(p) typedef crnlib_assume_try < sizeof(crnlib_assume_failure< (bool)(p) > ) > CRNLIB_JOIN(crnlib_assume_typedef, __COUNTER__)
+
+#ifdef NDEBUG
+template<typename T> inline T crnlib_assert_range(T i, T m)
+{
+   m;
+   return i;
+}
+template<typename T> inline T crnlib_assert_range_incl(T i, T m)
+{
+   m;
+   return i;
+}
+#else
+template<typename T> inline T crnlib_assert_range(T i, T m)
+{
+   CRNLIB_ASSERT((i >= 0) && (i < m));
+   return i;
+}
+template<typename T> inline T crnlib_assert_range_incl(T i, T m)
+{
+   CRNLIB_ASSERT((i >= 0) && (i <= m));
+   return i;
+}
+#endif