nanoPAL_NativeDouble.h

//
// Copyright (c) .NET Foundation and Contributors
// Portions Copyright (c) Microsoft Corporation.  All rights reserved.
// See LICENSE file in the project root for full license information.
//
#ifndef NANOPAL_DOUBLE_DECL_H
#define NANOPAL_DOUBLE_DECL_H

#include <nanoHAL.h>

#include <math.h>

#ifdef VIRTUAL_DEVICE
#include <float.h>

#define __isnand    _isnan
#define __isnanf    _isnan
#define __isinfd(x) (!_finite(x))

inline int __signbitd(double x)
{
    unsigned char *ptr = (unsigned char *)&x;
    return (*(ptr + (sizeof(double) - 1)) & 0x80) != 0;
}

#define rint(x)         floor((x) + 0.5)
#define remainder(x, y) ((x) - ((y) * rint((x) / (y))))

#define isgreater(param0, param1) (param0 > param1)
#define isless(param0, param1)    (param0 < param1)

#elif defined(__GNUC__)

#if !defined(isgreater)
#define isgreater __builtin_isgreater
#endif

#if !defined(isless)
#define isless __builtin_isless
#endif

#if !defined(__isnand)
#define __isnand __builtin_isnan
#endif

#if !defined(__isinfd)
#define __isinfd __builtin_isinf
#endif

#if !defined(__signbitd)
#define __signbitd __builtin_signbit
#endif

#endif

namespace System
{
struct Double
{
    static int32_t CompareTo(double d, double val);
    static bool IsInfinity(double d);
    static bool IsNaN(double d);
    static bool IsNegativeInfinity(double d);
    static bool IsPositiveInfinity(double d);
};
} // namespace System

#endif // NANOPAL_DOUBLE_DECL_H