//----------------------------------------------------------------------------
//  EgalTech 2016-2023
//----------------------------------------------------------------------------
// File : EgtNumUtils.h       Data : 16.08.23         Versione : 2.5h2
// Contenuto : Funzioni numeriche di base.       
//
//
//
// Modifiche : 05.11.16 DS Creazione modulo.
//
//
//----------------------------------------------------------------------------

#pragma once

#include <cmath>

//----------------------------------------------------------------------------
inline
int Clamp( int nVal, int nMin, int nMax)
{
   return ( nVal < nMin ? nMin : ( nVal > nMax ? nMax : nVal)) ;
}

//----------------------------------------------------------------------------
inline
double Clamp( double dVal, double dMin, double dMax)
{
   return ( dVal < dMin ? dMin : ( dVal > dMax ? dMax : dVal)) ;
}

//----------------------------------------------------------------------------
inline
bool IsEven( int nVal)
{
   return ( ( nVal % 2) == 0) ;
}

//----------------------------------------------------------------------------
inline
double Pow( double dBase, int nExp)
{
   if ( nExp == 0)
      return 1 ;
   else if ( nExp < 0) {
      if ( dBase < -DBL_EPSILON  ||  dBase > DBL_EPSILON)
         return Pow( 1 / dBase, -nExp) ;
      else
         return NAN ;
   }
   else {
      double dVal = 1 ;
      for ( int i = 1 ; i <= nExp ; ++ i)
         dVal *= dBase ;
      return dVal ;
   }
}