LROUND
Section: Linux Programmer's Manual (3)
Updated: 2001-05-31
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NAME
lround, lroundf, lroundl, llround, llroundf, llroundl - round to nearest integer, away from zero
SYNOPSIS
#include <math.h>
long int lround(double x);
long int lroundf(float x);
long int lroundl(long double x);
long long int llround(double x);
long long int llroundf(float x);
long long int llroundl(long double x);
Compile with -std=c99; link with -lm.
DESCRIPTION
These functions round their argument to the nearest integer value,
rounding away from zero, regardless of the current rounding direction.
If x is infinite or NaN, or if the rounded value is outside
the range of the return type, the numeric result is unspecified.
A domain error may occur if the magnitude of x is too large.
RETURN VALUE
The rounded integer value.
Note that unlike
round(3),
ceil(3),
etc., the return type of these functions differs from
that of their arguments.
ERRORS
- EDOM
-
The magnitude of x is too large and
(math_errhandling & MATH_ERRNO)
is non-zero.
CONFORMING TO
C99.
SEE ALSO
ceil(3),
floor(3),
lrint(3),
nearbyint(3),
rint(3),
round(3)
Index
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- RETURN VALUE
-
- ERRORS
-
- CONFORMING TO
-
- SEE ALSO
-
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