75 lines
1.5 KiB
C
75 lines
1.5 KiB
C
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/* Copyright (C) 1995-2003 by Digital Mars, www.digitalmars.com */
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#if __DMC__ || __RCC__
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#pragma once
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#endif
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#ifndef __FLTENV_H
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#define __FLTENV_H 1
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#if __cplusplus
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extern "C" {
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#endif
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typedef struct __fenv_t
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{
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unsigned short status;
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unsigned short control;
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unsigned short round;
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unsigned short reserved[2];
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} fenv_t;
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typedef int fexcept_t;
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#define FE_INVALID 1
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#define FE_DENORMAL 2
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#define FE_DIVBYZERO 4
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#define FE_OVERFLOW 8
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#define FE_UNDERFLOW 0x10
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#define FE_INEXACT 0x20
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#define FE_ALL_EXCEPT 0x3F
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#define FE_TONEAREST 0
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#define FE_UPWARD 0x800
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#define FE_DOWNWARD 0x400
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#define FE_TOWARDZERO 0xC00
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extern fenv_t __cdecl _FE_DFL_ENV;
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#define FE_DFL_ENV (&_FE_DFL_ENV)
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#define FE_FLTPREC 0
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#define FE_DBLPREC 0x200
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#define FE_LDBLPREC 0x300
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int __cdecl fetestexcept(int excepts);
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int __cdecl feraiseexcept(int excepts);
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int __cdecl feclearexcept(int excepts);
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//int __cdecl fegetexcept(fexcept_t *flagp,int excepts);
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//int __cdecl fesetexcept(const fexcept_t *flagp,int excepts);
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int __cdecl fegetround(void);
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int __cdecl fesetround(int round);
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int __cdecl fegetprec(void);
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int __cdecl fesetprec(int prec);
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int __cdecl fegetenv(fenv_t *envp);
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int __cdecl fesetenv(const fenv_t *envp);
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//void __cdecl feprocentry(fenv_t *envp);
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//void __cdecl feprocexit(const fenv_t *envp);
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int __cdecl fegetexceptflag(fexcept_t *flagp,int excepts);
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int __cdecl fesetexceptflag(const fexcept_t *flagp,int excepts);
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int __cdecl feholdexcept(fenv_t *envp);
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int __cdecl feupdateenv(const fenv_t *envp);
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#if __cplusplus
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}
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#endif
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#endif
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