Space-Project/dependencies/physx-4.1/source/foundation/include/PsBasicTemplates.h
2021-01-16 17:11:39 +01:00

147 lines
3.6 KiB
C++

//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions
// are met:
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above copyright
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// documentation and/or other materials provided with the distribution.
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// contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// Copyright (c) 2008-2019 NVIDIA Corporation. All rights reserved.
// Copyright (c) 2004-2008 AGEIA Technologies, Inc. All rights reserved.
// Copyright (c) 2001-2004 NovodeX AG. All rights reserved.
#ifndef PSFOUNDATION_PSBASICTEMPLATES_H
#define PSFOUNDATION_PSBASICTEMPLATES_H
#include "Ps.h"
namespace physx
{
namespace shdfnd
{
template <typename A>
struct Equal
{
bool operator()(const A& a, const A& b) const
{
return a == b;
}
};
template <typename A>
struct Less
{
bool operator()(const A& a, const A& b) const
{
return a < b;
}
};
template <typename A>
struct Greater
{
bool operator()(const A& a, const A& b) const
{
return a > b;
}
};
template <class F, class S>
class Pair
{
public:
F first;
S second;
Pair() : first(F()), second(S())
{
}
Pair(const F& f, const S& s) : first(f), second(s)
{
}
Pair(const Pair& p) : first(p.first), second(p.second)
{
}
// CN - fix for /.../PsBasicTemplates.h(61) : warning C4512: 'physx::shdfnd::Pair<F,S>' : assignment operator could
// not be generated
Pair& operator=(const Pair& p)
{
first = p.first;
second = p.second;
return *this;
}
bool operator==(const Pair& p) const
{
return first == p.first && second == p.second;
}
bool operator<(const Pair& p) const
{
if(first < p.first)
return true;
else
return !(p.first < first) && (second < p.second);
}
};
template <unsigned int A>
struct LogTwo
{
static const unsigned int value = LogTwo<(A >> 1)>::value + 1;
};
template <>
struct LogTwo<1>
{
static const unsigned int value = 0;
};
template <typename T>
struct UnConst
{
typedef T Type;
};
template <typename T>
struct UnConst<const T>
{
typedef T Type;
};
template <typename T>
T pointerOffset(void* p, ptrdiff_t offset)
{
return reinterpret_cast<T>(reinterpret_cast<char*>(p) + offset);
}
template <typename T>
T pointerOffset(const void* p, ptrdiff_t offset)
{
return reinterpret_cast<T>(reinterpret_cast<const char*>(p) + offset);
}
template <class T>
PX_CUDA_CALLABLE PX_INLINE void swap(T& x, T& y)
{
const T tmp = x;
x = y;
y = tmp;
}
} // namespace shdfnd
} // namespace physx
#endif // #ifndef PSFOUNDATION_PSBASICTEMPLATES_H