#include "libm.h"float truncf(float x){union {float f; uint32_t i;} u = {x};int e = (int)(u.i >> 23 & 0xff) - 0x7f + 9;uint32_t m;if (e >= 23 + 9)return x;if (e < 9)e = 1;m = -1U >> e;if ((u.i & m) == 0)return x;FORCE_EVAL(x + 0x1p120f);u.i &= ~m;return u.f;}