labs
return the absolute value of a long integer
INTERFACE
#include <stdlib.h> long labs ( long j )
DESCRIPTION
The labs function returns the absolute value of the long integer \c j, denoted by $|j|$ and defined through:
$$|j| :=
\left\{
\begin{array}{ll}
j, & j \geq 0, \\
-j, & j < 0.
\end{array}
\right.$$
(1)
Example 1
Workings
\code #include <stdio.h> #include <stdlib.h> int main() { long int a = -231564565; printf("|a| = %ld
", labs(a)); return 0; } \endcode
Solution
Output:
|a| = 231564565SEE ALSO
BUGS
The absolute value of the most negative integer remains negative.