1/* 2 * libjingle 3 * Copyright 2004--2005, Google Inc. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions are met: 7 * 8 * 1. Redistributions of source code must retain the above copyright notice, 9 * this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright notice, 11 * this list of conditions and the following disclaimer in the documentation 12 * and/or other materials provided with the distribution. 13 * 3. The name of the author may not be used to endorse or promote products 14 * derived from this software without specific prior written permission. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 17 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 18 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO 19 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 20 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 21 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 22 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 23 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 24 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 25 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 */ 27 28#ifndef TALK_BASE_COMMON_H_ 29#define TALK_BASE_COMMON_H_ 30 31#include "talk/base/constructormagic.h" 32 33#if defined(_MSC_VER) 34// warning C4355: 'this' : used in base member initializer list 35#pragma warning(disable:4355) 36#endif 37 38////////////////////////////////////////////////////////////////////// 39// General Utilities 40////////////////////////////////////////////////////////////////////// 41 42#ifndef UNUSED 43#define UNUSED(x) Unused(static_cast<const void *>(&x)) 44#define UNUSED2(x,y) Unused(static_cast<const void *>(&x)); Unused(static_cast<const void *>(&y)) 45#define UNUSED3(x,y,z) Unused(static_cast<const void *>(&x)); Unused(static_cast<const void *>(&y)); Unused(static_cast<const void *>(&z)) 46#define UNUSED4(x,y,z,a) Unused(static_cast<const void *>(&x)); Unused(static_cast<const void *>(&y)); Unused(static_cast<const void *>(&z)); Unused(static_cast<const void *>(&a)) 47#define UNUSED5(x,y,z,a,b) Unused(static_cast<const void *>(&x)); Unused(static_cast<const void *>(&y)); Unused(static_cast<const void *>(&z)); Unused(static_cast<const void *>(&a)); Unused(static_cast<const void *>(&b)) 48inline void Unused(const void *) { } 49#endif // UNUSED 50 51#ifndef WIN32 52#define strnicmp(x,y,n) strncasecmp(x,y,n) 53#define stricmp(x,y) strcasecmp(x,y) 54 55// TODO: Remove this. std::max should be used everywhere in the code. 56// NOMINMAX must be defined where we include <windows.h>. 57#define stdmax(x,y) std::max(x,y) 58#else 59#define stdmax(x,y) talk_base::_max(x,y) 60#endif 61 62 63#define ARRAY_SIZE(x) (static_cast<int>((sizeof(x)/sizeof(x[0])))) 64 65///////////////////////////////////////////////////////////////////////////// 66// Assertions 67///////////////////////////////////////////////////////////////////////////// 68 69#ifndef ENABLE_DEBUG 70#define ENABLE_DEBUG _DEBUG 71#endif // !defined(ENABLE_DEBUG) 72 73#if ENABLE_DEBUG 74 75namespace talk_base { 76 77// Break causes the debugger to stop executing, or the program to abort 78void Break(); 79 80// LogAssert writes information about an assertion to the log 81void LogAssert(const char * function, const char * file, int line, 82 const char * expression); 83 84inline bool Assert(bool result, const char * function, const char * file, 85 int line, const char * expression) { 86 if (!result) { 87 LogAssert(function, file, line, expression); 88 Break(); 89 return false; 90 } 91 return true; 92} 93 94} // namespace talk_base 95 96#if defined(_MSC_VER) && _MSC_VER < 1300 97#define __FUNCTION__ "" 98#endif 99 100#ifndef ASSERT 101#define ASSERT(x) (void)talk_base::Assert((x),__FUNCTION__,__FILE__,__LINE__,#x) 102#endif 103 104#ifndef VERIFY 105#define VERIFY(x) talk_base::Assert((x),__FUNCTION__,__FILE__,__LINE__,#x) 106#endif 107 108#else // !ENABLE_DEBUG 109 110namespace talk_base { 111 112inline bool ImplicitCastToBool(bool result) { return result; } 113 114} // namespace talk_base 115 116#ifndef ASSERT 117#define ASSERT(x) (void)0 118#endif 119 120#ifndef VERIFY 121#define VERIFY(x) talk_base::ImplicitCastToBool(x) 122#endif 123 124#endif // !ENABLE_DEBUG 125 126#define COMPILE_TIME_ASSERT(expr) char CTA_UNIQUE_NAME[expr] 127#define CTA_UNIQUE_NAME MAKE_NAME(__LINE__) 128#define CTA_MAKE_NAME(line) MAKE_NAME2(line) 129#define CTA_MAKE_NAME2(line) constraint_ ## line 130 131#ifdef __GNUC__ 132// Forces compiler to inline, even against its better judgement. Use wisely. 133#define FORCE_INLINE __attribute__((always_inline)) 134#else 135#define FORCE_INLINE 136#endif 137 138#endif // TALK_BASE_COMMON_H_ 139