3.22. __nv_ceilf Prototype: float @__nv_ceilf(float %x) Description: Compute the smallest integer value not less than x. Returns: Returns ⌈ x ⌉ expressed as a floating-point number. __nv_ceilf( ± 0 ) returns ± 0 . __nv_ceilf( ± ∞ ) returns ± ∞ . Library Availability: Compute 2.0: Yes Compute 3.0: Yes Compute 3.5: Yes