1 #define FE_INVALID 1
2 #define FE_DIVBYZERO 2
3 #define FE_OVERFLOW 4
4 #define FE_UNDERFLOW 8
5 #define FE_INEXACT 16
6 #define FE_ALL_EXCEPT 31
7 #define FE_TONEAREST 0
8 #define FE_DOWNWARD 0x800000
9 #define FE_UPWARD 0x400000
10 #define FE_TOWARDZERO 0xc00000
11 
12 typedef unsigned int fexcept_t;
13 
14 typedef struct {
15     unsigned int __fpcr;
16     unsigned int __fpsr;
17 } fenv_t;
18 
19 #define FE_DFL_ENV ((const fenv_t*)-1)
20