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lib/haxerecast/recastnavigation/Detour/Include/DetourAssert.h

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+//
+// Copyright (c) 2009-2010 Mikko Mononen memon@inside.org
+//
+// This software is provided 'as-is', without any express or implied
+// warranty.  In no event will the authors be held liable for any damages
+// arising from the use of this software.
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would be
+//    appreciated but is not required.
+// 2. Altered source versions must be plainly marked as such, and must not be
+//    misrepresented as being the original software.
+// 3. This notice may not be removed or altered from any source distribution.
+//
+
+#ifndef DETOURASSERT_H
+#define DETOURASSERT_H
+
+// Note: This header file's only purpose is to include define assert.
+// Feel free to change the file and include your own implementation instead.
+
+#ifdef NDEBUG
+
+// From http://cnicholson.net/2009/02/stupid-c-tricks-adventures-in-assert/
+#	define dtAssert(x) do { (void)sizeof(x); } while((void)(__LINE__==-1),false)  
+
+#else
+
+/// An assertion failure function.
+//  @param[in]		expression  asserted expression.
+//  @param[in]		file  Filename of the failed assertion.
+//  @param[in]		line  Line number of the failed assertion.
+///  @see dtAssertFailSetCustom
+typedef void (dtAssertFailFunc)(const char* expression, const char* file, int line);
+
+/// Sets the base custom assertion failure function to be used by Detour.
+///  @param[in]		assertFailFunc	The function to be invoked in case of failure of #dtAssert
+void dtAssertFailSetCustom(dtAssertFailFunc *assertFailFunc);
+
+/// Gets the base custom assertion failure function to be used by Detour.
+dtAssertFailFunc* dtAssertFailGetCustom();
+
+#	include <assert.h> 
+#	define dtAssert(expression) \
+		{ \
+			dtAssertFailFunc* failFunc = dtAssertFailGetCustom(); \
+			if(failFunc == NULL) { assert(expression); } \
+			else if(!(expression)) { (*failFunc)(#expression, __FILE__, __LINE__); } \
+		}
+
+#endif
+
+#endif // DETOURASSERT_H