diff options
| -rw-r--r-- | winsup/cygwin/fenv.cc | 2 | ||||
| -rw-r--r-- | winsup/cygwin/include/fenv.h | 56 | ||||
| -rw-r--r-- | winsup/doc/posix.xml | 4 |
3 files changed, 35 insertions, 27 deletions
diff --git a/winsup/cygwin/fenv.cc b/winsup/cygwin/fenv.cc index 3adc8a9..396f98a 100644 --- a/winsup/cygwin/fenv.cc +++ b/winsup/cygwin/fenv.cc @@ -401,7 +401,7 @@ fesetprec (int prec) unsigned short cw; /* Will succeed for any valid value of the input parameter. */ - if (prec < FE_SINGLEPREC || prec > FE_EXTENDEDPREC) + if (prec < FE_FLTPREC || prec > FE_LDBLPREC) return EINVAL; /* Get control word. */ diff --git a/winsup/cygwin/include/fenv.h b/winsup/cygwin/include/fenv.h index 7ce3a93..a355c47 100644 --- a/winsup/cygwin/include/fenv.h +++ b/winsup/cygwin/include/fenv.h @@ -106,11 +106,13 @@ typedef __uint32_t fexcept_t; #define FE_TOWARDZERO (3) #define FE_UPWARD (2) -/* Precision bit values. Not defined by Posix, but follow logically. */ -#define FE_SINGLEPREC (0) -#define FE_RESERVEDPREC (1) -#define FE_DOUBLEPREC (2) -#define FE_EXTENDEDPREC (3) +/* Precision values defined by Solaris, the only known system actually + implementing fegetprec/fesetprec. */ +#ifdef __MISC_VISIBLE /* FIXME? */ +#define FE_FLTPREC (0) +#define FE_DBLPREC (2) +#define FE_LDBLPREC (3) +#endif /* The <fenv.h> header shall define the following constant, which represents the default floating-point environment (that is, the one @@ -138,30 +140,36 @@ extern const fenv_t *_fe_nomask_env; /* The following shall be declared as functions and may also be defined as macros. Function prototypes shall be provided. */ -extern int feclearexcept (int excepts); -extern int fegetexceptflag (fexcept_t *flagp, int excepts); -extern int feraiseexcept (int excepts); -extern int fesetexceptflag (const fexcept_t *flagp, int excepts); -extern int fetestexcept (int excepts); +extern int feclearexcept (int __excepts); +extern int fegetexceptflag (fexcept_t *__flagp, int __excepts); +extern int feraiseexcept (int __excepts); +extern int fesetexceptflag (const fexcept_t *__flagp, int __excepts); +extern int fetestexcept (int __excepts); extern int fegetround (void); -extern int fesetround (int round); -extern int fegetenv (fenv_t *envp); -extern int feholdexcept (fenv_t *envp); -extern int fesetenv (const fenv_t *envp); -extern int feupdateenv (const fenv_t *envp); - -/* These are not defined in Posix, but make sense by obvious extension. */ -extern int fegetprec (void); -extern int fesetprec (int prec); - -/* This is Cygwin-custom, not from the standard, for use in the Cygwin CRT. */ -extern void _feinitialise (void); +extern int fesetround (int __round); +extern int fegetenv (fenv_t *__envp); +extern int feholdexcept (fenv_t *__envp); +extern int fesetenv (const fenv_t *__envp); +extern int feupdateenv (const fenv_t *__envp); +#if __GNU_VISIBLE /* These are GNU extensions defined in glibc. */ -extern int feenableexcept (int excepts); -extern int fedisableexcept (int excepts); +extern int feenableexcept (int __excepts); +extern int fedisableexcept (int __excepts); extern int fegetexcept (void); +#endif + +/* FIXME, what guard shall we use for Solaris extensions? */ +#if __MISC_VISIBLE +/* These are defined in Solaris libm.a */ +extern int fegetprec (void); +extern int fesetprec (int __prec); +#endif +#ifdef __INSIDE_CYGWIN__ +/* This is Cygwin-custom, not from the standard, for use in the Cygwin CRT. */ +extern void _feinitialise (); +#endif #ifdef __cplusplus } diff --git a/winsup/doc/posix.xml b/winsup/doc/posix.xml index 0755bed..d49cf55 100644 --- a/winsup/doc/posix.xml +++ b/winsup/doc/posix.xml @@ -1319,8 +1319,6 @@ also IEEE Std 1003.1-2008 (POSIX.1-2008).</para> fedisableexcept feenableexcept fegetexcept - fegetprec - fesetprec ffsl ffsll fgets_unlocked @@ -1443,6 +1441,8 @@ also IEEE Std 1003.1-2008 (POSIX.1-2008).</para> acltotext endmntent facl + fegetprec + fesetprec futimesat getmntent memalign |