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This commit is contained in:
bellard
2005-04-17 13:10:37 +00:00
parent 6144d43321
commit 5556cf1565
69 changed files with 23131 additions and 23131 deletions
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170
win32/include/fenv.h
View File

@ -1,85 +1,85 @@
#ifndef _FENV_H
#define _FENV_H
/*
For now, support only for the basic abstraction of flags that are
either set or clear. fexcept_t could be structure that holds more info
about the fp environment.
*/
typedef unsigned short fexcept_t;
/* This 28-byte struct represents the entire floating point
environment as stored by fnstenv or fstenv */
typedef struct
{
unsigned short __control_word;
unsigned short __unused0;
unsigned short __status_word;
unsigned short __unused1;
unsigned short __tag_word;
unsigned short __unused2;
unsigned int __ip_offset; /* instruction pointer offset */
unsigned short __ip_selector;
unsigned short __opcode;
unsigned int __data_offset;
unsigned short __data_selector;
unsigned short __unused3;
} fenv_t;
/* FPU status word exception flags */
#define FE_INVALID 0x01
#define FE_DENORMAL 0x02
#define FE_DIVBYZERO 0x04
#define FE_OVERFLOW 0x08
#define FE_UNDERFLOW 0x10
#define FE_INEXACT 0x20
#define FE_ALL_EXCEPT (FE_INVALID | FE_DENORMAL | FE_DIVBYZERO \
| FE_OVERFLOW | FE_UNDERFLOW | FE_INEXACT)
/* FPU control word rounding flags */
#define FE_TONEAREST 0x0000
#define FE_DOWNWARD 0x0400
#define FE_UPWARD 0x0800
#define FE_TOWARDZERO 0x0c00
/* The default floating point environment */
#define FE_DFL_ENV ((const fenv_t *)-1)
#ifndef RC_INVOKED
#ifdef __cplusplus
extern "C" {
#endif
/*TODO: Some of these could be inlined */
/* 7.6.2 Exception */
extern int feclearexcept (int);
extern int fegetexceptflag (fexcept_t * flagp, int excepts);
extern int feraiseexcept (int excepts );
extern int fesetexceptflag (const fexcept_t *, int);
extern int fetestexcept (int excepts);
/* 7.6.3 Rounding */
extern int fegetround (void);
extern int fesetround (int mode);
/* 7.6.4 Environment */
extern int fegetenv (fenv_t * envp);
extern int fesetenv (const fenv_t * );
extern int feupdateenv (const fenv_t *);
extern int feholdexcept (fenv_t *);
#ifdef __cplusplus
}
#endif
#endif /* Not RC_INVOKED */
#endif /* ndef _FENV_H */
#ifndef _FENV_H
#define _FENV_H
/*
For now, support only for the basic abstraction of flags that are
either set or clear. fexcept_t could be structure that holds more info
about the fp environment.
*/
typedef unsigned short fexcept_t;
/* This 28-byte struct represents the entire floating point
environment as stored by fnstenv or fstenv */
typedef struct
{
unsigned short __control_word;
unsigned short __unused0;
unsigned short __status_word;
unsigned short __unused1;
unsigned short __tag_word;
unsigned short __unused2;
unsigned int __ip_offset; /* instruction pointer offset */
unsigned short __ip_selector;
unsigned short __opcode;
unsigned int __data_offset;
unsigned short __data_selector;
unsigned short __unused3;
} fenv_t;
/* FPU status word exception flags */
#define FE_INVALID 0x01
#define FE_DENORMAL 0x02
#define FE_DIVBYZERO 0x04
#define FE_OVERFLOW 0x08
#define FE_UNDERFLOW 0x10
#define FE_INEXACT 0x20
#define FE_ALL_EXCEPT (FE_INVALID | FE_DENORMAL | FE_DIVBYZERO \
| FE_OVERFLOW | FE_UNDERFLOW | FE_INEXACT)
/* FPU control word rounding flags */
#define FE_TONEAREST 0x0000
#define FE_DOWNWARD 0x0400
#define FE_UPWARD 0x0800
#define FE_TOWARDZERO 0x0c00
/* The default floating point environment */
#define FE_DFL_ENV ((const fenv_t *)-1)
#ifndef RC_INVOKED
#ifdef __cplusplus
extern "C" {
#endif
/*TODO: Some of these could be inlined */
/* 7.6.2 Exception */
extern int feclearexcept (int);
extern int fegetexceptflag (fexcept_t * flagp, int excepts);
extern int feraiseexcept (int excepts );
extern int fesetexceptflag (const fexcept_t *, int);
extern int fetestexcept (int excepts);
/* 7.6.3 Rounding */
extern int fegetround (void);
extern int fesetround (int mode);
/* 7.6.4 Environment */
extern int fegetenv (fenv_t * envp);
extern int fesetenv (const fenv_t * );
extern int feupdateenv (const fenv_t *);
extern int feholdexcept (fenv_t *);
#ifdef __cplusplus
}
#endif
#endif /* Not RC_INVOKED */
#endif /* ndef _FENV_H */