πΎ Archived View for gmi.noulin.net βΊ man βΊ man3 βΊ llabs.3.gmi captured on 2024-08-31 at 14:12:08. Gemini links have been rewritten to link to archived content
β¬ οΈ Previous capture (2023-09-08)
-=-=-=-=-=-=-
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 labs(long j); long long llabs(long long j); #include <inttypes.h> intmax_t imaxabs(intmax_t j); Feature Test Macro Requirements for glibc (see feature_test_macros(7)): llabs(): _ISOC99_SOURCE || _POSIX_C_SOURCE >= 200112L 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 arguβ ment 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. ATTRIBUTES For an explanation of the terms used in this section, see attributes(7). ββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ¬ββββββββββββββββ¬ββββββββββ βInterface β Attribute β Value β ββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββΌββββββββββββββββΌββββββββββ€ βabs(), labs(), llabs(), imaxabs() β Thread safety β MT-Safe β ββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ΄ββββββββββββββββ΄ββββββββββ CONFORMING TO POSIX.1-2001, POSIX.1-2008, C99, SVr4, 4.3BSD. 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. 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. By default, GCC handles abs(), labs(), and (since GCC 3.0) llabs() and imaxabs() as built-in functions. SEE ALSO cabs(3), ceil(3), fabs(3), floor(3), rint(3) GNU 2021-03-22 ABS(3)