1#include <float.h>
2#include <fenv.h>
3
4int __flt_rounds()
5{
6	switch (fegetround()) {
7#ifdef FE_TOWARDZERO
8	case FE_TOWARDZERO: return 0;
9#endif
10	case FE_TONEAREST: return 1;
11#ifdef FE_UPWARD
12	case FE_UPWARD: return 2;
13#endif
14#ifdef FE_DOWNWARD
15	case FE_DOWNWARD: return 3;
16#endif
17	}
18	return -1;
19}
20