NAME
round,
roundf,
roundl
—
round to nearest integral value
LIBRARY
Math Library (libm, -lm)
SYNOPSIS
#include <math.h>
double
round(
double
x);
float
roundf(
float
x);
long double
roundl(
long
double x);
DESCRIPTION
The
round(),
roundf(), and
roundl() functions return the nearest integral value to
x; if
x lies halfway between two
integral values, then these functions return the integral value with the
larger absolute value (i.e., they round away from zero).
SEE ALSO
ceil(3),
floor(3),
math(3),
rint(3),
trunc(3)
STANDARDS
The
round() and
roundf() functions conform
to
ISO/IEC 9899:1999 (“ISO C99”).
HISTORY
The
round() and
roundf() functions appeared
in
NetBSD 2.0.