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#include <float.h>
#include <fenv.h>
int __flt_rounds()
{
switch (fegetround()) {
#ifdef FE_TOWARDZERO
case FE_TOWARDZERO: return 0;
#endif
case FE_TONEAREST: return 1;
#ifdef FE_UPWARD
case FE_UPWARD: return 2;
#endif
#ifdef FE_DOWNWARD
case FE_DOWNWARD: return 3;
#endif
}
return -1;
}
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