checks.inc

 
#include "elementa/license.inc"
 
#ifndef ELEMENTA_CHECKS_INC
#define ELEMENTA_CHECKS_INC
 
#include <limits>
 
/* ***************************************************************************
 
    Macro: ELE_PRE_CPPVER
 
*****************************************************************************/
 
 
#if __cplusplus == 201103L || (defined(_MSC_VER) && _MSC_VER >= 1900 && _MSC_VER < 1910)
    #define ELE_PRE_CPPVER 2011
#elif __cplusplus == 201402L || (defined(_MSC_VER) && _MSC_VER >= 1910 && _MSC_VER < 1914)
    #define ELE_PRE_CPPVER 2014
#elif __cplusplus == 201703L || (defined(_MSC_VER) && _MSC_VER >= 1914)
    #define ELE_PRE_CPPVER 2017
#else
    #error Version of the C++ standard not decided or less than C++11.
#endif
 
 
/* ***************************************************************************
 
    Check for 8 bit integral support.
 
*****************************************************************************/
 
 
static_assert(std::numeric_limits<unsigned char>::digits == 8,
                "Elementa needs that unsigned char has 8 bits");
 
 
/* ***************************************************************************
 
    Check for existence of infinity and NaN in floats and doubles.
 
*****************************************************************************/
 
static_assert(std::numeric_limits<float>::is_iec559 &&              
              std::numeric_limits<double>::is_iec559,
              "Elementa needs that float and double satisfy IEC559 in order to"
              " have infinity");
 
#endif