6.7.6 imaxabs Function

Calculate the absolute value of a greatest-width integer.

Include

<inttypes.h>

Prototype

intmax_t imaxabs(intmax_t j);

Argument

j

The value whose absolute value is required.

Return Value

The imaxabs function computes the absolute value of an integer j.

Remarks

If the result cannot be represented, the behavior is undefined. The absolute value of the most negative number cannot be represented in two's compliment.

Example

See the notes at the beginning of this chapter or section for information on using printf() or scanf() (and other functions reading and writing the stdin or stdout streams) in the example code.

#include <inttypes.h>
#include <stdio.h>

int main(void)
{
  intmax_t val;

  val = -10000;
  printf("The absolute value of %" PRIdMAX " is %" PRIdMAX "\n", val, imaxabs(val));
}

Example Output

The absolute value of -10000 is 10000