#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;
}