ceil¶

Synopsis¶

#include <math.h>

double ceil(double x);

float ceilf(float x);

Status¶

Partially implemented

Conformance¶

IEEE Std 1003.1-2017

Description¶

These functions shall compute the smallest integral value not less than x.

Return value¶

The result shall have the same sign as x.

Upon successful completion, ceil() and ceilf() shall return the smallest integral value not less than x, expressed as a type double, float, or long double, respectively.

If x is NaN, a NaN shall be returned.
If x is ±0 or ±Inf, x shall be returned.

Errors¶

No errors are defined.

Tests¶

Untested

Known bugs¶

None