diff options
Diffstat (limited to 'math/fenv.h')
| -rw-r--r-- | math/fenv.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/math/fenv.h b/math/fenv.h index 10d32db909..9006aa2fff 100644 --- a/math/fenv.h +++ b/math/fenv.h @@ -38,6 +38,12 @@ fexcept_t type for object representing the floating-point exception flags including status associated with the flags + femode_t type for object representing floating-point control modes + + FE_DFL_MODE macro of type pointer to const femode_t to be used as the + argument to fesetmode; in this case the default control + modes will be used + The following macros are defined iff the implementation supports this kind of exception. FE_INEXACT inexact result @@ -122,6 +128,18 @@ extern int fesetenv (const fenv_t *__envp) __THROW; extern int feupdateenv (const fenv_t *__envp) __THROW; +/* Control modes. */ + +#if __GLIBC_USE (IEC_60559_BFP_EXT) +/* Store the current floating-point control modes in the object + pointed to by MODEP. */ +extern int fegetmode (femode_t *__modep) __THROW; + +/* Establish the floating-point control modes represented by the + object pointed to by MODEP. */ +extern int fesetmode (const femode_t *__modep) __THROW; +#endif + /* Include optimization. */ #ifdef __OPTIMIZE__ # include <bits/fenvinline.h> |