halflife25-sdk/public/minmax.h
2024-08-20 19:58:27 -07:00

67 lines
1.3 KiB
C++

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