atol : atol « stdlib.h « C Tutorial






  1. C Tutorial
  2. stdlib.h
  3. atol
ItemValue
Header filestdlib.h
Declarationlong int atol(const char *str);
Functionconverts 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.








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