mirror of https://github.com/flysand7/ciabatta.git
63 lines
1.4 KiB
C
63 lines
1.4 KiB
C
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#pragma once
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typedef unsigned fexcept_t;
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typedef unsigned fenv_t;
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// These constants correspond to bits in MXCSR register
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#define FE_INVALID (1 << 0)
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#define FE_DIVBYZERO (1 << 2)
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#define FE_OVERFLOW (1 << 3)
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#define FE_UNDERFLOW (1 << 4)
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#define FE_INEXACT (1 << 5)
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#define FE_DENORM (1 << 1)
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#define FE_DAZ (1 << 6)
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#define FE_ALL_EXCEPT \
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( FE_INVALID \
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| FE_DIVBYZERO \
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| FE_OVERFLOW \
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| FE_UNDERFLOW \
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| FE_INEXACT \
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| FE_DENORM \
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| FE_DAZ )
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// These constants correspond to the rounding field in MXCSR register
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#define FE_TONEAREST 0x00
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#define FE_DOWNWARD 0x01
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#define FE_UPWARD 0x02
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#define FE_TOWARDZERO 0x03
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extern fenv_t _fe_dfl_env;
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#define FE_DFL_ENV (&_fe_dfl_env)
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// Exceptions
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int feclearexcept(int excepts);
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int fegetexceptflag(fexcept_t *flagp, int excepts);
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int feraiseexcept(int excepts);
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int fesetexceptflag(const fexcept_t *flagp, int excepts);
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int fetestexcept(int excepts);
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// Rounding behaviour
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int fegetround(void);
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int fesetround(int round);
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// Environment
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int fegetenv(fenv_t *env);
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int fesetenv(fenv_t *env);
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int feholdexcept(fenv_t *envp);
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int feupdateenv(fenv_t const *envp);
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// Non-standard functions
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int _feenabletraps(int excepts);
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int _fedisabletraps(int excepts);
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#if defined(_CIABATTA_EXT)
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#define feenabletraps _feenabletraps
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#define fedisabletraps _fedisabletraps
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#endif
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