64 lines
1.0 KiB
C
64 lines
1.0 KiB
C
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/*
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* Copyright (c) 2005-2019 Rich Felker, et al.
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*
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* Part of MUSL, released under the MIT license.
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*/
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#ifndef _FENV_H_
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#define _FENV_H_
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#ifdef __cplusplus
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extern "C" {
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#endif
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#if __HAVE_68881__ || __mcffpu__
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#define FE_INEXACT 8
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#define FE_DIVBYZERO 16
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#define FE_UNDERFLOW 32
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#define FE_OVERFLOW 64
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#define FE_INVALID 128
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#define FE_ALL_EXCEPT 0xf8
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#define FE_TONEAREST 0
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#define FE_TOWARDZERO 16
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#define FE_DOWNWARD 32
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#define FE_UPWARD 48
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#else
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#define FE_ALL_EXCEPT 0
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#define FE_TONEAREST 0
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#endif
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typedef unsigned fexcept_t;
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typedef struct {
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unsigned __control_register, __status_register, __instruction_address;
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} fenv_t;
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#define FE_DFL_ENV ((const fenv_t *) -1)
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int feclearexcept(int);
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int fegetexceptflag(fexcept_t *, int);
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int feraiseexcept(int);
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int fesetexceptflag(const fexcept_t *, int);
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int fetestexcept(int);
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int fegetround(void);
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int fesetround(int);
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int fegetenv(fenv_t *);
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int feholdexcept(fenv_t *);
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int fesetenv(const fenv_t *);
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int feupdateenv(const fenv_t *);
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#ifdef __cplusplus
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}
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#endif
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#endif
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