#define FE_INVALID 1 #define __FE_DENORM 2 #define FE_DIVBYZERO 4 #define FE_OVERFLOW 8 #define FE_UNDERFLOW 16 #define FE_INEXACT 32 #define FE_ALL_EXCEPT 63 #define FE_TONEAREST 0 #define FE_DOWNWARD 0x400 #define FE_UPWARD 0x800 #define FE_TOWARDZERO 0xc00 typedef unsigned short fexcept_t; typedef struct { unsigned short __control_word; unsigned short __unused1; unsigned short __status_word; unsigned short __unused2; unsigned short __tags; unsigned short __unused3; unsigned int __eip; unsigned short __cs_selector; unsigned int __opcode:11; unsigned int __unused4:5; unsigned int __data_offset; unsigned short __data_selector; unsigned short __unused5; unsigned int __mxcsr; } fenv_t; #define FE_DFL_ENV ((const fenv_t *) -1)