02-08-2012
many many thanks ,it worked!!!!!
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418
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492
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LEARN ABOUT FREEBSD
roundf
ROUND(3) BSD Library Functions Manual ROUND(3)
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), ieee(3), lrint(3), lround(3), math(3), rint(3), trunc(3)
STANDARDS
These functions conform to ISO/IEC 9899:1999 (``ISO C99'').
HISTORY
The round() and roundf() functions appeared in FreeBSD 5.3. The roundl() function appeared in FreeBSD 6.0.
BSD
April 7, 2005 BSD