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  1.     #include <stdio.h>
  2.  
  3.     /* global definition of a function prototype */
  4.     /* known to all functions                    */
  5.     int add_two (int, int); /* Method 2a */
  6.  
  7.     int main ()
  8.     {
  9.  
  10.       int doubled;  /* the result of a number doubled */
  11.       int sum;      /* the sum of two numbers         */
  12.       int val;      /* just a number to work with     */
  13.  
  14.       val = 100;
  15.  
  16.       /* local declaration of a function prototype      */
  17.       /* known only to calls to it in the main function */
  18.       int double_it (int); /* Method 2b */
  19.  
  20.       sum = add_two (val, val*5);
  21.       doubled = double_it (val);
  22.  
  23.       printf("sum = %i and doubled = %i\n", sum, doubled);
  24.  
  25.       return(0);
  26.  
  27.     }
  28.  
  29.     // **************************************************
  30.     // Function: add_two
  31.     //
  32.     // Description:  Adds to numbers together and returns
  33.     //               their sum.
  34.     //
  35.     // Parameters: num1 - first integer to sum
  36.     //             num2 - second integer to sum
  37.     //
  38.     // Returns:    result - sum of num1 and num2
  39.     //
  40.     // ***************************************************
  41.  
  42.     int add_two (int num1, int num2)
  43.     {
  44.        int result;  /* sum of the two number */
  45.  
  46.        result = num1 + num2;
  47.        return (result);
  48.     }
  49.  
  50.     // **************************************************
  51.     // Function: double_it
  52.     //
  53.     // Description:  Adds to numbers together and returns
  54.     //               their sum.
  55.     //
  56.     // Parameters: num - number to double
  57.     //
  58.     // Returns:    answer - the value of num doubled
  59.     //
  60.     // ****************************************************
  61.     int double_it (int num)
  62.     {
  63.        int answer; /* num being doubled */
  64.  
  65.        answer = num + num;
  66.  
  67.        return (answer);
  68.     }
  69.  
Success #stdin #stdout 0s 5288KB
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Standard input is empty
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sum = 600 and doubled = 200
https://ideone.com/3RloEL
language:
C (gcc 8.3)
created:
11 days ago
visibility:
public

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