The labs() function shall compute the absolute value of the
long integer operand i. The llabs()
function shall compute the absolute value of the long long integer
operand i. If the result cannot be represented,
the behavior is undefined.
The labs() function shall return the absolute value of the long
integer operand. The labs() function shall
return the absolute value of the long long integer operand.
No errors are defined.
The following sections are informative.
abs() , the Base Definitions volume of IEEE Std 1003.1-2001,
Portions of this text are reprinted and reproduced in electronic form
from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology
-- Portable Operating System Interface (POSIX), The Open Group Base
Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of
Electrical and Electronics Engineers, Inc and The Open Group. In the
event of any discrepancy between this version and the original IEEE and
The Open Group Standard, the original IEEE and The Open Group Standard
is the referee document. The original Standard can be obtained online at