C language labs() function: take the absolute value of long integer

Function name : labs

Header file : <math.h>

Function prototype : long labs(long n);

Function : Get the absolute value of long integer

Parameters : long n long integer type to be operated on

Return value : Returns the absolute value of a long integer

Program example : Find the absolute value of long integer x and output the result

 #include<stdio.h>#include<math.h>intmain(void){longresult;longx=-12345678L;result=labs(x);printf(number:%ldabsvalue:%ldn,x,result); return0;}

Running results:

 number:-12345678absvalue:12345678