atol : atol « stdlib.h « C Tutorial

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C Tutorial » stdlib.h » atol

23.6.1.atol

Item	Value
Header file	stdlib.h
Declaration	long int atol(const char *str);
Function	converts the string into a long int value.

#include <stdlib.h>

  #include <stdio.h>



  int main(void)

  {

    char num1[80], num2[80];



    printf("Enter first: ");

    gets(num1);

    printf("Enter second: ");

    gets(num2);

    printf("The sum is: %ld.", atol(num1)+atol(num2));



    return 0;

  }

Enter first: 3
Enter second: 2
The sum is: 5.

23.6.atol
	23.6.1.	atol

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