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#include <fenv.h> /* __fesetround wrapper for arch independent argument check */ int __fesetround(int); int fesetround(int r) { if (r & ~( FE_TONEAREST #ifdef FE_DOWNWARD |FE_DOWNWARD #endif #ifdef FE_UPWARD |FE_UPWARD #endif #ifdef FE_TOWARDZERO |FE_TOWARDZERO #endif )) return -1; return __fesetround(r); } |