| #ifndef _FENV_H | 
 | #include <math/fenv.h> | 
 |  | 
 | #ifndef _ISOMAC | 
 | # include <stdbool.h> | 
 | /* Now define the internal interfaces.  */ | 
 |  | 
 | extern int __feclearexcept (int __excepts); | 
 | extern int __fegetexcept (void); | 
 | extern int __fegetexceptflag (fexcept_t *__flagp, int __excepts); | 
 | extern int __feraiseexcept (int __excepts); | 
 | extern int __fesetexceptflag (const fexcept_t *__flagp, int __excepts); | 
 | extern int __fegetenv (fenv_t *__envp); | 
 | extern int __fesetenv (const fenv_t *__envp); | 
 | extern int __feupdateenv (const fenv_t *__envp); | 
 | extern __typeof (fegetround) __fegetround __attribute_pure__; | 
 | extern __typeof (feholdexcept) __feholdexcept; | 
 | extern __typeof (fesetround) __fesetround; | 
 |  | 
 | libm_hidden_proto (feraiseexcept) | 
 | libm_hidden_proto (__feraiseexcept) | 
 | libm_hidden_proto (fegetenv) | 
 | libm_hidden_proto (__fegetenv) | 
 | libm_hidden_proto (fegetround) | 
 | libm_hidden_proto (__fegetround) | 
 | libm_hidden_proto (fesetenv) | 
 | libm_hidden_proto (__fesetenv) | 
 | libm_hidden_proto (fesetround) | 
 | libm_hidden_proto (__fesetround) | 
 | libm_hidden_proto (feholdexcept) | 
 | libm_hidden_proto (__feholdexcept) | 
 | libm_hidden_proto (feupdateenv) | 
 | libm_hidden_proto (__feupdateenv) | 
 | libm_hidden_proto (fetestexcept) | 
 | libm_hidden_proto (feclearexcept) | 
 |  | 
 | /* Rounding mode context.  This allows functions to set/restore rounding mode | 
 |    only when the desired rounding mode is different from the current rounding | 
 |    mode.  */ | 
 | struct rm_ctx | 
 | { | 
 |   fenv_t env; | 
 |   bool updated_status; | 
 | }; | 
 | #endif | 
 |  | 
 | #endif |