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  1. // Elaine Torrez                             CS1A
  2. // _____________________________________________
  3. //                                          
  4. // MEASURE STRING LENGTH   
  5. // _____________________________________________
  6. // This program prompts the user to enter a string
  7. // and determines the number of characters in the
  8. // string. The program then displays that number.
  9. // _____________________________________________
  10. // INPUT
  11. //   userStr   : The string entered by the user
  12. //
  13. // OUTPUT
  14. //   length    : Number of characters in the string
  15. // _____________________________________________
  16.  
  17. #include <iostream>
  18. using namespace std;
  19.  
  20. // FUNCTION PROTOTYPE
  21. int strLength(const char *str);
  22.  
  23. int main()
  24. {
  25.     /**********************************************
  26.      * VARIABLE DECLARATIONS
  27.      **********************************************/
  28.     const int SIZE = 100;  
  29.     char userStr[SIZE];    // INPUT string
  30.     int length;            // OUTPUT string length
  31.  
  32.     /**********************************************
  33.      * INPUT
  34.      **********************************************/
  35.     cout << "Enter a string: ";
  36.     cin.getline(userStr, SIZE);
  37.  
  38.     /**********************************************
  39.      * PROCESS
  40.      **********************************************/
  41.     length = strLength(userStr);
  42.  
  43.     /**********************************************
  44.      * OUTPUT
  45.      **********************************************/
  46.     cout << "\nString length: " << length << endl;
  47.  
  48.     return 0;
  49. }
  50.  
  51. // ************************************************
  52. // strLength
  53. // ------------------------------------------------
  54. // Returns the number of characters in a C-string.
  55. // ************************************************
  56. int strLength(const char *str)
  57. {
  58.     int count = 0;
  59.  
  60.     while (str[count] != '\0')
  61.         count++;
  62.  
  63.     return count;
  64. }
  65.  
Success #stdin #stdout 0.01s 5268KB
comments (?)
stdin
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Hello world
stdout
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Enter a string: 
String length: 11
https://ideone.com/KKvIe0
language:
C++ (gcc 8.3)
created:
8 days ago
visibility:
public

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