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/*
* libjingle
* Copyright 2004--2005, Google Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _common_h_
#define _common_h_
#if defined(_MSC_VER)
// warning C4355: 'this' : used in base member initializer list
#pragma warning(disable:4355)
#endif
#if defined(ENABLE_DEBUG_MALLOC) && !defined(ENABLE_DEBUG)
#define ENABLE_DEBUG 1
#endif
//////////////////////////////////////////////////////////////////////
// General Utilities
//////////////////////////////////////////////////////////////////////
#ifndef UNUSED
#define UNUSED(x) Unused(static_cast<const void *>(&x))
#define UNUSED2(x,y) Unused(static_cast<const void *>(&x)); Unused(static_cast<const void *>(&y))
#define UNUSED3(x,y,z) Unused(static_cast<const void *>(&x)); Unused(static_cast<const void *>(&y)); Unused(static_cast<const void *>(&z))
#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))
#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))
inline void Unused(const void *) { }
#endif // UNUSED
#define ARRAY_SIZE(x) (static_cast<int>((sizeof(x)/sizeof(x[0]))))
/////////////////////////////////////////////////////////////////////////////
// std:min/std:max on msvc
/////////////////////////////////////////////////////////////////////////////
#if defined(_MSC_VER) && _MSC_VER <= 1200 // 1200 == VC++ 6.0
#undef min
#undef max
namespace std {
/**
* @brief This does what you think it does.
* @param a A thing of arbitrary type.
* @param b Another thing of arbitrary type.
* @return The lesser of the parameters.
*
* This is the simple classic generic implementation. It will work on
* temporary expressions, since they are only evaluated once, unlike a
* preprocessor macro.
*/
template<typename _Tp>
inline const _Tp&
min(const _Tp& __a, const _Tp& __b)
{
//return __b < __a ? __b : __a;
if (__b < __a) return __b; return __a;
}
/**
* @brief This does what you think it does.
* @param a A thing of arbitrary type.
* @param b Another thing of arbitrary type.
* @return The greater of the parameters.
*
* This is the simple classic generic implementation. It will work on
* temporary expressions, since they are only evaluated once, unlike a
* preprocessor macro.
*/
template<typename _Tp>
inline const _Tp&
max(const _Tp& __a, const _Tp& __b)
{
//return __a < __b ? __b : __a;
if (__a < __b) return __b; return __a;
}
/**
* @brief This does what you think it does.
* @param a A thing of arbitrary type.
* @param b Another thing of arbitrary type.
* @param comp A @link s20_3_3_comparisons comparison functor@endlink.
* @return The lesser of the parameters.
*
* This will work on temporary expressions, since they are only evaluated
* once, unlike a preprocessor macro.
*/
template<typename _Tp, typename _Compare>
inline const _Tp&
min(const _Tp& __a, const _Tp& __b, _Compare __comp)
{
//return __comp(__b, __a) ? __b : __a;
if (__comp(__b, __a)) return __b; return __a;
}
/**
* @brief This does what you think it does.
* @param a A thing of arbitrary type.
* @param b Another thing of arbitrary type.
* @param comp A @link s20_3_3_comparisons comparison functor@endlink.
* @return The greater of the parameters.
*
* This will work on temporary expressions, since they are only evaluated
* once, unlike a preprocessor macro.
*/
template<typename _Tp, typename _Compare>
inline const _Tp&
max(const _Tp& __a, const _Tp& __b, _Compare __comp)
{
//return __comp(__a, __b) ? __b : __a;
if (__comp(__a, __b)) return __b; return __a;
}
}
#endif // _MSC_VER <= 1200
/////////////////////////////////////////////////////////////////////////////
// Assertions
/////////////////////////////////////////////////////////////////////////////
#ifdef ENABLE_DEBUG
namespace buzz {
// Break causes the debugger to stop executing, or the program to abort
void Break();
// LogAssert writes information about an assertion to the log
void LogAssert(const char * function, const char * file, int line, const char * expression);
inline void Assert(bool result, const char * function, const char * file, int line, const char * expression) {
if (!result) {
LogAssert(function, file, line, expression);
Break();
}
}
}; // namespace buzz
#if defined(_MSC_VER) && _MSC_VER < 1300
#define __FUNCTION__ ""
#endif
#define ASSERT(x) buzz::Assert((x),__FUNCTION__,__FILE__,__LINE__,#x)
#define VERIFY(x) buzz::Assert((x),__FUNCTION__,__FILE__,__LINE__,#x)
#else // !ENABLE_DEBUG
#define ASSERT(x) (void)0
#define VERIFY(x) (void)(x)
#endif // !ENABLE_DEBUG
#define COMPILE_TIME_ASSERT(expr) char CTA_UNIQUE_NAME[expr]
#define CTA_UNIQUE_NAME MAKE_NAME(__LINE__)
#define CTA_MAKE_NAME(line) MAKE_NAME2(line)
#define CTA_MAKE_NAME2(line) constraint_ ## line
//////////////////////////////////////////////////////////////////////
// Memory leak tracking
//////////////////////////////////////////////////////////////////////
#include <sys/types.h>
#ifdef ENABLE_DEBUG_MALLOC
namespace buzz {
void * DebugAllocate(size_t size, const char * fname = 0, int line = 0);
void DebugDeallocate(void * ptr, const char * fname = 0, int line = 0);
bool LeakCheck();
bool LeakCheckU();
void LeakMarkBaseline();
void LeakClearBaseline();
}; // namespace buzz
inline void * operator new(size_t size, const char * fname, int line) { return buzz::DebugAllocate(size, fname, line); }
inline void operator delete(void * ptr, const char * fname, int line) { buzz::DebugDeallocate(ptr, fname, line); }
#if !(defined(TRACK_ARRAY_ALLOC_PROBLEM) && \
defined(_MSC_VER) && _MSC_VER <= 1200) // 1200 == VC++ 6.0
inline void * operator new[](size_t size, const char * fname, int line) { return buzz::DebugAllocate(size, fname, line); }
inline void operator delete[](void * ptr, const char * fname, int line) { buzz::DebugDeallocate(ptr, fname, line); }
#endif // TRACK_ARRAY_ALLOC_PROBLEM
// If you put "#define new TRACK_NEW" in your .cc file after all includes, it should track the calling function name
#define TRACK_NEW new(__FILE__,__LINE__)
#define TRACK_DEL delete(__FILE__,__LINE__)
#else // !ENABLE_DEBUG_MALLOC
#define TRACK_NEW new
#define TRACK_DEL delete
#endif // !ENABLE_DEBUG_MALLOC
//////////////////////////////////////////////////////////////////////
#endif // _common_h_
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