DragonFly On-Line Manual Pages
CEIL(3) DragonFly Library Functions Manual CEIL(3)
NAME
ceil, ceilf, ceill -- round to smallest integral value greater than or
equal to x
SYNOPSIS
#include <math.h>
double
ceil(double x);
float
ceilf(float x);
long double
ceill(long double x);
DESCRIPTION
The ceil() function returns the smallest integral value greater than or
equal to x. The ceilf() function is a single precision version of
ceil(). The ceill() function is an extended precision version of ceil().
SEE ALSO
abs(3), fabs(3), floor(3), nextafter(3), rint(3)
STANDARDS
The ceil() function conforms to ANSI X3.159-1989 (``ANSI C89'').
DragonFly 4.1 August 14, 2013 DragonFly 4.1