3.21. __nv_ceil

double @__nv_ceil(double %x)

Calculate ceiling of the input argument.

Compute the smallest integer value not less than x.

Returns

Returns \(\lceil x \rceil\) expressed as a floating-point number.

• __nv_ceil( \(\pm 0\) ) returns \(\pm 0\).

• __nv_ceil( \(\pm \infty\) ) returns \(\pm \infty\).