ABS(S) UNIX System V ABS(S)
Name
abs - return integer absolute value
Syntax
int abs (i)
int i;
Description
The abs function returns the absolute value of its integer
operand.
See Also
floor(S).
Note
In two's-complement representation, the absolute value of
the negative integer with largest magnitude is undefined.
Some implementations trap this error, but others simply
ignore it.
Standards Conformance
abs is conformant with:
AT&T SVID Issue 2, Select Code 307-127;
The X/Open Portability Guide II of January 1987;
ANSI X3.159-198X C Language Draft Standard, May 13,
1988;
IEEE POSIX Std 1003.1-1988 with C Standard Language-
Dependent System Support;
and NIST FIPS 151-1.
(printed 6/20/89)