1 #define FE_INVALID 16 2 #define FE_DIVBYZERO 8 3 #define FE_OVERFLOW 4 4 #define FE_UNDERFLOW 2 5 #define FE_INEXACT 1 6 7 #define FE_ALL_EXCEPT 31 8 9 #define FE_TONEAREST 0 10 #define FE_DOWNWARD 2 11 #define FE_UPWARD 3 12 #define FE_TOWARDZERO 1 13 14 typedef unsigned int fexcept_t; 15 typedef unsigned int fenv_t; 16 17 #define FE_DFL_ENV ((const fenv_t *) -1) 18