ABS(3) BSD Programmer's Manual ABS(3)
abs - integer absolute value function
#include <stdlib.h> int abs(int j);
The abs() function computes the absolute value of the integer j.
The abs() function returns the absolute value.
cabs(3), floor(3), hypot(3), labs(3), math(3)
The abs() function conforms to ANSI X3.159-1989 ("ANSI C89").
The absolute value of the most negative integer remains negative. MirBSD #10-current June 29, 1991 1