2 #define FE_TOWARDZERO 1
4 #define FE_INEXACT 0x04
5 #define FE_UNDERFLOW 0x08
6 #define FE_OVERFLOW 0x10
7 #define FE_DIVBYZERO 0x20
8 #define FE_INVALID 0x40
9 #define FE_ALL_EXCEPT 0x7c
11 typedef unsigned long fexcept_t;
17 #define FE_DFL_ENV ((const fenv_t *) -1)