02-10-2010
rounding time in perl
Is there a way I can round time in perl to the nearest five minutes?
For example if I have log giving the following time stamps
23,52,30 it would rounded up to 23,55,00
and
23,50,01 would be rounded to 23,50,00
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LEARN ABOUT REDHAT
llroundf
LROUND(3) Linux Programmer's Manual LROUND(3)
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);
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.
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)
2001-05-31 LROUND(3)