# ceil(3) - NetBSD Manual Pages

Command: Section: Arch: Collection:
```CEIL(3)                 NetBSD Library Functions Manual                CEIL(3)

NAME
ceil, ceilf, ceill, floor, floorf, floorl -- ceiling and floor

LIBRARY
Math Library (libm, -lm)

SYNOPSIS
#include <math.h>

double
ceil(double x);

float
ceilf(float x);

long double
ceill(long double x);

double
floor(double x);

float
floorf(float x);

long double
floorl(long double x);

DESCRIPTION
The ceil(), ceilf(), and ceill() functions return the smallest integral
value greater than or equal to x.  Conversely, the floor(), floorf(), and
floorl() functions return the largest integral value less than or equal
to x.

abs(3), fabs(3), math(3), nextafter(3), rint(3)

STANDARDS
The described functions conform to ISO/IEC 9899:1999 (``ISO C99'').

NetBSD 9.2                     November 12, 2013                    NetBSD 9.2
```
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