micrososoft foundation class quick question

This is a discussion on micrososoft foundation class quick question within the Windows Programming forums, part of the Platform Specific Boards category; Why don't I get an error here? There is no where in the code I initialise the buffer array. Should ...

  1. #1
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    micrososoft foundation class quick question

    Why don't I get an error here? There is no where in the code I initialise the buffer array. Should there not be an error on LINE 22?

    Code:
    double point[6][3]; 
    	double buffer[6][3];
    
    	//p1
    	point[0][0] = 300;  point[0][1] = 50;  point[0][2] = 0;
    	//p2
    	point[1][0] = 150; point[1][1] = 50; point[1][2] = 0;
    	//p3
    	point[2][0] = 260;  point[2][1] = 150; point[2][2] = 0;
    	//p4
    	point[3][0] = 250; point[3][1] = 200; point[3][2] = 0;
    	//p5
    	point[4][0] = 160; point[4][1] = 300; point[4][2] = 0;
    	//p6
    	point[5][0] = 300; point[5][1] = 300; point[5][2] = 0;
    
    ...
    
    
    for (int j=1;j<5;j++)
    		{
    			pDC->MoveTo(buffer[j][0], buffer[j][1]);
    			pDC->LineTo(point[j][0], point[j][1]);
    			buffer[j][0] = point[j][0]; 
    			buffer[j][1] = point[j][1];
    		}
    Last edited by bos1234; 05-16-2012 at 12:25 AM.

  2. #2
    and the hat of wrongness Salem's Avatar
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    What error were you expecting?

    If you turn up the warning level on the compiler, you might get a "use before initialisation" message.
    If you dance barefoot on the broken glass of undefined behaviour, you've got to expect the occasional cut.
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