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  1. char RepeatProgramPrompt()
  2. {
  3.     char repeatProgram;
  4.  
  5.     do
  6.     {
  7.         printf("\nTo exit enter q, to continue enter y.\n");
  8.         scanf("%c", &repeatProgram);
  9. 		while(getchar() != '\n')
  10. 		{
  11. 		}
  12.         repeatProgram = tolower(repeatProgram);
  13.  
  14.         if(repeatProgram != 'y' && repeatProgram != 'q')
  15.         {
  16.             printf("\nYou've entered %c, that isn't a valid option.\n", repeatProgram);
  17.  
  18.         }
  19.  
  20.     }while(repeatProgram != 'y' && repeatProgram != 'q');
  21.  
  22.  
  23.     return(repeatProgram);
  24. }
  25. int main()
  26. {
  27. 	RepeatProgramPrompt();
  28.   getchar();
  29. }
Runtime error #stdin #stdout 0s 2252KB
comments (?)
stdin 
a 
b
c
q
stdout 
To exit enter q, to continue enter y.

You've entered a, that isn't a valid option.

To exit enter q, to continue enter y.

You've entered b, that isn't a valid option.

To exit enter q, to continue enter y.

You've entered c, that isn't a valid option.

To exit enter q, to continue enter y.
https://ideone.com/RLLpPm
language:
C (gcc 8.3)
created:
11 years ago
visibility:
public

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