c program problem

This is a discussion on c program problem within the C Programming forums, part of the General Programming Boards category; the program compiles fine by it doesn't run as it should any idea what might be wrong? Code: case 1: ...

  1. #1
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    c program problem

    the program compiles fine by it doesn't run as it should
    any idea what might be wrong?

    Code:
    			case 1: /*selection 1 easy*/
    				
    				i1 = rand() % 100;
    				i2 = rand() % 100;
    				i3 = rand() % 100;
    				
    				printf("\nConcentrate on the next three numbers:\n"); /*this line is printed but then clear_screen() function activates*/
    				printf("\n%d\t%d\t%d", i1, i2, i3); /*then this line is printed which should be cleared along with the one above*/
    				
    				iCurrentTime = time(NULL);
    				do 
    				{
    					iElapsedTime = time(NULL);
    				} while ( (iElapsedTime - iCurrentTime) < 4 ); /*end do while*/
    				
    				clear_screen();
    				
    				printf("\nEnter each number separated with one space: "); /*along with the numbers this line is also printed...*/
    				scanf("%d%d%d", &iResp1, &iResp2, &iResp3);
    				
    				if (iResp1 == i1 && iResp2 == i2 && iResp3 == i3)
    					
    						printf("\nCongratulations!");
    					else
    						printf("\nSorry, correct numbers were: %d %d %d", i1, i2, i3);
    					 /*end if*/

  2. #2
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    Is this for a "bulls and cows" game or what?

    Exactly what is it doing wrong?

  3. #3
    and the hat of wrongness Salem's Avatar
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    > printf("\n%d\t%d\t%d", i1, i2, i3);
    Since this line does not end with a \n, you should call fflush(stdout) to ensure that the data is displayed.

    Otherwise, the output will remain buffered until after the screen has been cleared.
    If you dance barefoot on the broken glass of undefined behaviour, you've got to expect the occasional cut.
    If at first you don't succeed, try writing your phone number on the exam paper.
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  4. #4
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    well you have to remember those 3 numbers in 3 seconds
    they they "should" be cleared
    and you have to enter them correctly

    but they don't get cleared so the game is pointless

  5. #5
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    Quote Originally Posted by Salem View Post
    > printf("\n%d\t%d\t%d", i1, i2, i3);
    Since this line does not end with a \n, you should call fflush(stdout) to ensure that the data is displayed.

    Otherwise, the output will remain buffered until after the screen has been cleared.
    thanks it worked

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