diff options
Diffstat (limited to 'win32/include/fenv.h')
| -rw-r--r-- | win32/include/fenv.h | 170 |
1 files changed, 85 insertions, 85 deletions
diff --git a/win32/include/fenv.h b/win32/include/fenv.h index c25b4b4..ddc43df 100644 --- a/win32/include/fenv.h +++ b/win32/include/fenv.h @@ -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 */ |