ceil(3) BSD Library Functions Manual ceil(3)
NAME
ceil -- round to smallest integral value not less than x
SYNOPSIS
#include <math.h> double ceil(double x); long double ceill(long double x); float ceilf(float x);
DESCRIPTION
The ceil() functions return the smallest integral value greater than or equal to x.
SPECIAL VALUES
ceil(+-0) returns +-0. ceil(+-infinity) returns +-infinity.
VECTOR OPERATIONS
If you need to apply the ceil() function to SIMD vectors or arrays, using the following functions provided by the Accelerate.framework may give significantly better performance: #include <Accelerate/Accelerate.h> vFloat vceilf(vFloat x); void vvceilf(float *y, const float *x, const int *n); void vvceil(double *y, const double *x, const int *n);
SEE ALSO
floor(3), round(3), trunc(3), math(3)
STANDARDS
The ceil() functions conform to ISO/IEC 9899:2011. BSD December 11, 2006 BSD
Mac OS X 10.9.1 - Generated Tue Jan 7 07:36:05 CST 2014