abs - Absolute value of a whole number

Definition	#include <stdlib.h> int abs(int i); abs calculates the absolute value of the integer i.
Return val. Note	|i|                  for any given integer value i. The absolute value of the highest presentable negative number cannot be presented. If the highest negative number (-231) is specified as argument i, the program is terminated with an error.
Example	The following program outputs the absolute value corresponding to an input value. #include <stdio.h> #include <stdlib.h> int main(void) { int i; printf("Please enter int value: \n"); if (scanf("%d", &i) == 1) /* Checks number of entries */ printf("i = %d; ?i? = %d\n", i, abs(i)); else printf("Input error! \n"); return 0; }
See also	cabs, fabs, labs, llabs