FvMathTemplate.h

[詳解]

//  $Revision: 1.1 $
/*
    @file   FvMathTemplate.h
    @brief  Math template functions
    @author FAST Corporation
*/


#ifndef     _FVMATHTEMPLATE_H_INCLUDED_
#define     _FVMATHTEMPLATE_H_INCLUDED_

#include "FvMacros.h"
#include "FvDefs.h"

namespace FVCL
{

// Math
namespace Math
{

template<class Type> Type Max( Type _Left, Type _Right )
{
    return ((_Left>_Right) ? _Left : _Right);
}

template<class Type> Type Min( Type _Left, Type _Right )
{
    return ((_Left<_Right) ? _Left : _Right);
}

template<class TD, class TS> void BitShiftR( TD* dst, TS src, INT shift )
{
    if(      shift > 0 )    *dst = (TD)( src >> shift );    // right
    else if( shift < 0 )    *dst = ( (TD)src << -shift );   // reverse
    else                    *dst = (TD)( src );
}
template<class TD, class TS> void BitShiftL( TD* dst, TS src, INT shift )
{
    if(      shift > 0 )    *dst = ( (TD)src << shift );    // left
    else if( shift < 0 )    *dst = (TD)( src >> -shift );   // reverse
    else                    *dst = (TD)( src );
}

}   // Math
}   // FVCL

#endif  // _FVMATHTEMPLATE_H_INCLUDED_