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68 lines
1.3 KiB
C++
68 lines
1.3 KiB
C++
#ifdef __cplusplus
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# undef min
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# undef max
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# ifndef MINMAX_H
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# define MINMAX_H
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# ifdef _WIN32
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# pragma once
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# endif
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extern "C++"
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{
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// Josh: I would define my own, but older C++ versions we are targeting
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// had very very strange copy constructor rules which make it so, eg.
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// (double&, double) doesn't fit (const T& a, const T& b).
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// Just use the std min/max which solves it.
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#include <algorithm>
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#if defined(_MSC_VER) && _MSC_VER < 1300
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template <class T>
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inline const T& min(const T& x, const T& y)
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{
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return (x < y) ? x : y;
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}
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template <class T>
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inline const T& max(const T& x, const T& y)
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{
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return (x > y) ? x : y;
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}
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#else
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using std::min;
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using std::max;
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#endif
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#if 0
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template< class T >
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inline const T& clamp( const T& val, const T& minVal, const T& maxVal )
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{
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if( val < minVal )
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return minVal;
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else if( val > maxVal )
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return maxVal;
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else
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return val;
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}
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#else
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# ifndef clamp
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# define clamp(val, min, max) (((val) > (max)) ? (max) : (((val) < (min)) ? (min) : (val)))
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# endif
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#endif
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}
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# endif
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#else
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# ifndef min
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# define min(a,b) (((a) < (b)) ? (a) : (b))
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# endif
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# ifndef max
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# define max(a,b) (((a) > (b)) ? (a) : (b))
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# endif
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# ifndef clamp
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# define clamp(val, min, max) (((val) > (max)) ? (max) : (((val) < (min)) ? (min) : (val)))
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# endif
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#endif
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