cosmopolitan/libc/runtime/fenv.h

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#ifndef COSMOPOLITAN_LIBC_RUNTIME_FENV_H_
#define COSMOPOLITAN_LIBC_RUNTIME_FENV_H_
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#ifdef __x86_64__
#define FE_INVALID 1
#define __FE_DENORM 2
#define FE_DIVBYZERO 4
#define FE_OVERFLOW 8
#define FE_UNDERFLOW 16
#define FE_INEXACT 32
#define FE_ALL_EXCEPT 63
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#define FE_TONEAREST 0x0000
#define FE_DOWNWARD 0x0400
#define FE_UPWARD 0x0800
#define FE_TOWARDZERO 0x0c00
#elif defined(__aarch64__)
#define FE_INVALID 1
#define FE_DIVBYZERO 2
#define FE_OVERFLOW 4
#define FE_UNDERFLOW 8
#define FE_INEXACT 16
#define FE_ALL_EXCEPT 31
#define FE_TONEAREST 0
#define FE_DOWNWARD 0x800000
#define FE_UPWARD 0x400000
#define FE_TOWARDZERO 0xc00000
#endif
#ifdef __FLT_EVAL_METHOD__
#define FLT_EVAL_METHOD __FLT_EVAL_METHOD__
#else
#define FLT_EVAL_METHOD 0
#endif
#if !(__ASSEMBLER__ + __LINKER__ + 0)
COSMOPOLITAN_C_START_
#define FLT_ROUNDS (__flt_rounds())
#define FE_DFL_ENV ((const fenv_t *)-1)
typedef void *fenv_t;
typedef uint16_t fexcept_t;
int feclearexcept(int);
int fegetenv(fenv_t *);
int fegetexceptflag(fexcept_t *, int);
int fegetround(void);
int feholdexcept(fenv_t *);
int feraiseexcept(int);
int fesetenv(const fenv_t *);
int fesetexceptflag(const fexcept_t *, int);
int fesetround(int);
int fetestexcept(int);
int feupdateenv(const fenv_t *);
int __flt_rounds(void);
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int __fesetround(int);
COSMOPOLITAN_C_END_
#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
#endif /* COSMOPOLITAN_LIBC_RUNTIME_FENV_H_ */