1 #define FE_TONEAREST 0 2 #define FE_TOWARDZERO 1 3 #define FE_UPWARD 2 4 #define FE_DOWNWARD 3 5 6 #define FE_INEXACT 0x00080000 7 #define FE_UNDERFLOW 0x00100000 8 #define FE_OVERFLOW 0x00200000 9 #define FE_DIVBYZERO 0x00400000 10 #define FE_INVALID 0x00800000 11 12 #define FE_ALL_EXCEPT 0x00f80000 13 14 typedef unsigned fexcept_t; 15 typedef unsigned fenv_t; 16 17 #define FE_DFL_ENV ((const fenv_t *)-1) 18