Very simple question

This is a discussion on Very simple question within the C Programming forums, part of the General Programming Boards category; Code: #include <stdio.h> int main (void) { int Height; int Length; int Width; printf("What is the height of your rectangle?\n"); ...

  1. #1
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    Very simple question

    Code:
    #include <stdio.h>
    int main (void) {
    	int Height;
    	int Length;
    	int Width;
        printf("What is the height of your rectangle?\n");
    	scanf("%d",Height);
    	printf("What is the length of your rectangle?\n");
    	scanf("%d",Length);
    	printf("What is the width of your rectangle?\n");
    	scanf("%d",Width);
    	printf("The area of your rectangle is %d",Width*Height*Length);
    	return 0;
    }
    Im new to this programming thing and I just can't seem to get this to work..

  2. #2
    ATH0 quzah's Avatar
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    scanf expects pointers as its arguments. As such, for non-pointer variables, you have to give the address of the variable to scanf:
    Code:
    int foo;
    scanf( "%d", &foo );
    With pointers, you use the pointer directly:
    Code:
    int foo, *bar;
    bar = &foo; /* make the pointer point to the address of foo */
    scanf( "%d", bar );

    Quzah.
    Hope is the first step on the road to disappointment.

  3. #3
    Gawking at stupidity
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    I thought a rectangle was a 2D entity. Maybe the problem is you're using 3 dimensions
    If you understand what you're doing, you're not learning anything.

  4. #4
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    Here Is The Code

    Code:
    #include <stdio.h>
    int main (void) {
    	int Height,Length,Width,Total;
    	Height = Length = Width = Total = 0;
                    printf("What is the height of your cube? ");
    	scanf("%d",&Height);
    	printf("What is the length of your cube? ");
    	scanf("%d",&Length);
    	printf("What is the width  of your cube? ");
    	scanf("%d",&Width);
    	Total = (Width*Height*Length);
    	printf("\nThe area of your cube is %d",Total);
    	return 0;
    }
    He's right. Rectangle is 2D. Cube is 3D so I put that in place of rectangle.

  5. #5
    ---
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    and then it would be
    Code:
    printf("\nThe volume of your cube is %d",Total);
    instead of
    Code:
    printf("\nThe area of your cube is %d",Total);

  6. #6
    Registered User
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    Quote Originally Posted by sand_man
    and then it would be
    Code:
    printf("\nThe volume of your cube is %d",Total);
    instead of
    Code:
    printf("\nThe area of your cube is %d",Total);

    <pedantic>

    A cube has three equal dimensions. When I took geometry, back in the 20th century, I think they called the object that you have in mind a "rectangular parallelepiped". Lazy latter-day don-wanna-sound-like-mathematicians sometimes call this a "cuboid".

    </pedantic>

    Regards,

    Dave

  7. #7
    Cat without Hat CornedBee's Avatar
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    Non-mathematicians call it a box, or perhaps rectangular box if they must make a point.
    All the buzzt!
    CornedBee

    "There is not now, nor has there ever been, nor will there ever be, any programming language in which it is the least bit difficult to write bad code."
    - Flon's Law

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