2 #define FE_ALL_EXCEPT 0
10 #define FE_ALL_EXCEPT 31
11 #define FE_TONEAREST 0
12 #define FE_DOWNWARD 0x800000
13 #define FE_UPWARD 0x400000
14 #define FE_TOWARDZERO 0xc00000
17 typedef unsigned long fexcept_t;
23 #define FE_DFL_ENV ((const fenv_t *) -1)