1 #define FE_INEXACT 0x010000 2 #define FE_UNDERFLOW 0x020000 3 #define FE_OVERFLOW 0x040000 4 #define FE_DIVBYZERO 0x080000 5 #define FE_INVALID 0x100000 6 7 #define FE_ALL_EXCEPT 0x1F0000 8 9 #define FE_TONEAREST 0x000 10 #define FE_TOWARDZERO 0x100 11 #define FE_UPWARD 0x200 12 #define FE_DOWNWARD 0x300 13 14 typedef unsigned fexcept_t; 15 16 typedef struct { 17 unsigned __cw; 18 } fenv_t; 19 20 #define FE_DFL_ENV ((const fenv_t *) -1) 21