NAME
ceil, ceilf,
ceill, floor,
floorf, floorl —
ceiling and floor
LIBRARY
library “libm”
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
Theceil(),
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.
SEE ALSO
STANDARDS
The described functions conform to ISO/IEC 9899:1999 (“ISO C99”).