XmConst.h

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#pragma once
//------------------------------------------------------------------------------
//------------------------------------------------------------------------------
// 1. Standard library headers

// 3. Standard Library Headers
#include <limits>

// 4. External Library Headers

// 5. Shared Headers

// 6. Non-shared Headers
namespace xms
{
// Use std::min and std::max, not Windows' versions.
#ifdef max
#undef max
#endif

#ifdef min
#undef min
#endif

// Integer range constants
static const int XM_INT_HIGHEST = std::numeric_limits<int>::max();   
static const int XM_INT_LOWEST = std::numeric_limits<int>::lowest(); 

// Unsigned integer range constants
static const unsigned int XM_UINT_HIGHEST =
  std::numeric_limits<unsigned int>::max(); 
static const unsigned int XM_UINT_LOWEST = std::numeric_limits<unsigned int>::lowest(); 

// Key double constants
static const double XM_DBL_HIGHEST =
  std::numeric_limits<double>::max(); 
static const double XM_DBL_LOWEST =
  std::numeric_limits<double>::lowest(); 
static const double XM_DBL_NEAREST_ZERO =
  std::numeric_limits<double>::min(); 

// Key float constants
static const float XM_FLT_HIGHEST = std::numeric_limits<float>::max();      
static const float XM_FLT_LOWEST = std::numeric_limits<float>::lowest();    
static const float XM_FLT_NEAREST_ZERO = std::numeric_limits<float>::min(); 

} // namespace xms