#include "math.h"

#include "math_private.h"

static const float huge = 1.0e30;

float ceilf(float x)
{
	int32_t i0, j0;
	u_int32_t i;

	GET_FLOAT_WORD(i0, x);
	j0 = ((i0 >> 23) & 0xff) - 0x7f;
	if (j0 < 23) {
		if (j0 < 0) { /* raise inexact if x != 0 */
			if (huge + x > (float)0.0) { /* return 0*sign(x) if |x|<1 */
				if (i0 < 0) {
					i0 = 0x80000000;
				} else if (i0 != 0) {
					i0 = 0x3f800000;
				}
			}
		} else {
			i = (0x007fffff) >> j0;
			if ((i0 & i) == 0)
				return x; /* x is integral */
			if (huge + x > (float)0.0) { /* raise inexact flag */
				if (i0 > 0)
					i0 += (0x00800000) >> j0;
				i0 &= (~i);
			}
		}
	} else {
		if (j0 == 0x80)
			return x + x; /* inf or NaN */
		else
			return x; /* x is integral */
	}
	SET_FLOAT_WORD(x, i0);
	return x;
}