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/*
* dunder.c - manually provoke FP exceptions for mathlib
*
* Copyright (c) 2009-2018, Arm Limited.
* SPDX-License-Identifier: MIT
*/
#include "math_private.h"
#include <fenv.h>
__inline double __mathlib_dbl_infnan(double x)
{
return x+x;
}
__inline double __mathlib_dbl_infnan2(double x, double y)
{
return x+y;
}
double __mathlib_dbl_underflow(void)
{
#ifdef CLANG_EXCEPTIONS
feraiseexcept(FE_UNDERFLOW);
#endif
return 0x1p-767 * 0x1p-767;
}
double __mathlib_dbl_overflow(void)
{
#ifdef CLANG_EXCEPTIONS
feraiseexcept(FE_OVERFLOW);
#endif
return 0x1p+769 * 0x1p+769;
}
double __mathlib_dbl_invalid(void)
{
#ifdef CLANG_EXCEPTIONS
feraiseexcept(FE_INVALID);
#endif
return 0.0 / 0.0;
}
double __mathlib_dbl_divzero(void)
{
#ifdef CLANG_EXCEPTIONS
feraiseexcept(FE_DIVBYZERO);
#endif
return 1.0 / 0.0;
}
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