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  1. // Diego Martinez                         CSC5             Chapter 10, P.588, #2
  2. /*******************************************************************************
  3. * DISPLAY REVERSE STRING
  4. * ______________________________________________________________________________
  5. * This program asks the user to enter a string. A function is used to display
  6. * the contents of the C-string backward.
  7. *
  8. * Computation is based on the Formula:
  9. *
  10. *      Display characters from the end of the string to the beginning
  11. *
  12. * ______________________________________________________________________________
  13. * INPUT
  14. *
  15. *      User string
  16. *
  17. * OUTPUT
  18. *
  19. *      String displayed backward
  20. *
  21. *******************************************************************************/
  22.  
  23. #include <iostream>
  24. #include <cstring>
  25. using namespace std;
  26.  
  27. // Function prototype
  28. void backwardString(const char *);
  29.  
  30. int main()
  31. {
  32.     // Variable declaration
  33.     char userString[100];
  34.  
  35.     // User input
  36.     cout << "Enter a string: ";
  37.     cin.getline(userString, 100);
  38.  
  39.     // Function call
  40.     cout << "The string backward is: ";
  41.     backwardString(userString);
  42.  
  43.     cout << endl;
  44.  
  45.     return 0;
  46. }
  47.  
  48. // Function definition
  49. void backwardString(const char *str)
  50. {
  51.     int length = strlen(str);
  52.  
  53.     // Display string backward
  54.     for (int i = length - 1; i >= 0; i--)
  55.     {
  56.         cout << *(str + i);
  57.     }
  58. }
Success #stdin #stdout 0s 5324KB
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DIEGO
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Enter a string: The string backward is: OGEID
https://ideone.com/1QUVM9
DISPLAY REVERSE STRING CH. 10, P. 588, #2
language:
C++ (gcc 8.3)
created:
23 hours ago
visibility:
public

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