04-23-2010
GCC V3.2 on Redhat8 and Suse9
Hi,
Can someone tell me what will be the difference between the binary that is built on Redhat8 and Suse9 even when compiler version is same i.e GCC 3.2.3 is used on both?I mean if I build an application on Suse9 using GCC 3.2that was supposed to be built on Redhat8 using GCC 3.2 what all problems do I face with respect to compilation linking and loading?
Thanks in advance
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ABS(3) Linux Programmer's Manual ABS(3)
NAME
abs, labs, llabs, imaxabs - compute the absolute value of an integer
SYNOPSIS
#include <stdlib.h>
int abs(int j);
long int labs(long int j);
long long int llabs(long long int j);
#include <inttypes.h>
intmax_t imaxabs(intmax_t j);
Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
llabs(): _XOPEN_SOURCE >= 600 || _ISOC99_SOURCE; or cc -std=c99
DESCRIPTION
The abs() function computes the absolute value of the integer argument j. The labs(), llabs() and imaxabs() functions compute the absolute
value of the argument j of the appropriate integer type for the function.
RETURN VALUE
Returns the absolute value of the integer argument, of the appropriate integer type for the function.
CONFORMING TO
SVr4, POSIX.1-2001, 4.3BSD, C99. C89 only includes the abs() and labs() functions; the functions llabs() and imaxabs() were added in C99.
NOTES
Trying to take the absolute value of the most negative integer is not defined.
The llabs() function is included in glibc since version 2.0, but is not in libc5 or libc4. The imaxabs() function is included in glibc
since version 2.1.1.
For llabs() to be declared, it may be necessary to define _ISOC99_SOURCE or _ISOC9X_SOURCE (depending on the version of glibc) before
including any standard headers.
GCC handles abs() and labs() as built-in functions. GCC 3.0 also handles llabs() and imaxabs() as built-ins.
SEE ALSO
cabs(3), ceil(3), fabs(3), floor(3), rint(3)
COLOPHON
This page is part of release 3.25 of the Linux man-pages project. A description of the project, and information about reporting bugs, can
be found at http://www.kernel.org/doc/man-pages/.
GNU
2007-07-26 ABS(3)