DragonFly On-Line Manual Pages


CEIL(3) 	      DragonFly Library Functions Manual	       CEIL(3)

NAME

ceil, ceilf, ceill -- smallest integral value greater than or equal to x

LIBRARY

Math Library (libm, -lm)

SYNOPSIS

#include <math.h> double ceil(double x); float ceilf(float x); long double ceill(long double x);

DESCRIPTION

The ceil(), ceilf() and ceill() functions return the smallest integral value greater than or equal to x, expressed as a floating-point number.

SEE ALSO

abs(3), fabs(3), floor(3), ieee(3), math(3), rint(3), round(3), trunc(3)

STANDARDS

The ceil() function conforms to ISO/IEC 9899:1990 (``ISO C90''). The ceilf() and ceill() functions conform to ISO/IEC 9899:1999 (``ISO C99''). DragonFly 3.7 December 21, 2011 DragonFly 3.7