The meaning of abs in c language

The abs() function in the c language is used to calculate the absolute value of an integer or floating point number, that is, its distance from zero, which is always a non-negative number. It takes a number argument and returns the absolute value of that number.

The meaning of abs in c language

abs() function is a standard library function in c language. Used to calculate the absolute value of an integer or floating point number. The absolute value is the distance between a number and its zero point, which is always non-negative.

Function prototype:

<code class="c">#include <stdlib.h>
int abs(int num);
double abs(double num);</code>

Parameters:

• num: To calculate absolute Target number of the value

Return value:

• For integers, returns the absolute value of the target number.
• For floating point numbers, return the absolute value of the target number.

Example:

<code class="c">#include <stdio.h>
#include <stdlib.h>

int main() {
  int num1 = -5;
  double num2 = -10.2;

  printf("num1 的绝对值：%d\n", abs(num1)); // 输出：5
  printf("num2 的绝对值：%lf\n", abs(num2)); // 输出：10.2
}</code>

In the above example:

• abs(num1) Calculation The absolute value of the integer num1, the result is 5.
• abs(num2) Calculates the absolute value of floating point number num2, and the result is 10.2.

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