pastelsys.cpp

// Description: Native type checks
// Documentation: portability.txt

#include "pastel/sys/mytypes.h"
#include "pastel/sys/syslibrary.h"

// These headers are here so that they
// get dll-exported.
#include "pastel/sys/possiblyemptymember.h"

#include <climits>

namespace Pastel
{

    namespace
    {

        void testDataSizes()
        {
            using namespace std;

            // Check that 'char' is 8 bits.
            PASTEL_STATIC_ASSERT(
                CHAR_MIN == (-127 - 1) && CHAR_MAX == 127);
            PASTEL_STATIC_ASSERT(
                UCHAR_MAX == 0xFF);

            // Check that 'short int' is 16 bits.
            PASTEL_STATIC_ASSERT(
                SHRT_MIN == (-32767 - 1) && SHRT_MAX == 32767);
            PASTEL_STATIC_ASSERT(
                USHRT_MAX == 0xFFFF);

            // Check that 'int' is 32 bits.
            PASTEL_STATIC_ASSERT(
                INT_MIN == (-2147483647 - 1) && INT_MAX == 2147483647);
            PASTEL_STATIC_ASSERT(
                UINT_MAX == 0xFFFFFFFF);

            // Check that 'integer' is at least 32 bits wide.
            PASTEL_STATIC_ASSERT(
                sizeof(integer) >= sizeof(int32));

            // Check that 'pointer_integer' is of the same size as a pointer.
            PASTEL_STATIC_ASSERT(
                sizeof(pointer_integer) == sizeof(void*));

            PASTEL_STATIC_ASSERT(
                sizeof(uint8) == sizeof(uchar));
            PASTEL_STATIC_ASSERT(
                sizeof(uint16) == 2 * sizeof(uint8));
            PASTEL_STATIC_ASSERT(
                sizeof(uint32) == 4 * sizeof(uint8));
            PASTEL_STATIC_ASSERT(
                sizeof(uint64) == 8 * sizeof(uint8));

            PASTEL_STATIC_ASSERT(
                sizeof(real32) == 4 * sizeof(uint8));
            PASTEL_STATIC_ASSERT(
                sizeof(real64) == 8 * sizeof(uint8));

            PASTEL_STATIC_ASSERT(
                sizeof(int8) == sizeof(uint8));
            PASTEL_STATIC_ASSERT(
                sizeof(int16) == sizeof(uint16));
            PASTEL_STATIC_ASSERT(
                sizeof(int32) == sizeof(uint32));
            PASTEL_STATIC_ASSERT(
                sizeof(int64) == sizeof(uint64));
        }

    }

}