Thread: Case Statement

Using case-labels more effectively removes one unnecessary goto:

Code:

    case 9: 
    case 15:
    case 8:
	VD = 4000;
	if (c == 9)
	    goto one;
	else if (c == 15)
	    goto four;
	break;

By rearranging the case-labels in opposite order and using fall-through, we can remove all remaining gotos:

Code:

void func2(int x)
{
    int c, d;
    c = x & 0x0f;
    d = c & 3;
    switch(c)
    {
    case 15:
    case 9:
    case 8:
	VD = 4000;
    case 4:
	if (c & 4)
	    VC = 700;
    case 3:
    case 1:
	if (d == 1)
	{
	    VA = 1000;
	}
	else if (d == 3)
	{
	    VA = 900;
	    VB = 400;
	}
    }
}

--
Mats