1 #define FE_INVALID 1 2 #define __FE_DENORM 2 3 #define FE_DIVBYZERO 4 4 #define FE_OVERFLOW 8 5 #define FE_UNDERFLOW 16 6 #define FE_INEXACT 32 7 8 #define FE_ALL_EXCEPT 63 9 10 #define FE_TONEAREST 0 11 #define FE_DOWNWARD 0x400 12 #define FE_UPWARD 0x800 13 #define FE_TOWARDZERO 0xc00 14 15 typedef unsigned short fexcept_t; 16 17 typedef struct { 18 unsigned short __control_word; 19 unsigned short __unused1; 20 unsigned short __status_word; 21 unsigned short __unused2; 22 unsigned short __tags; 23 unsigned short __unused3; 24 unsigned int __eip; 25 unsigned short __cs_selector; 26 unsigned int __opcode:11; 27 unsigned int __unused4:5; 28 unsigned int __data_offset; 29 unsigned short __data_selector; 30 unsigned short __unused5; 31 } fenv_t; 32 33 #define FE_DFL_ENV ((const fenv_t *) -1) 34