MSVC++ error

**Vicious** · 09-26-2004

I only get this problem with this compiler ( MSVC++ 6.0 ).

Here is the code in question

Code:

if ( Display [ x + ( y * max_width ) ] != 0 )

Display is an unsigned char array. I get this error

Code:

 error C2108: subscript is not of integral type

!?

**The Brain** · 09-26-2004

MSVC doesn't like the stuff that is inside the [] for some reason..

I think [ x + ( y * max_width ) ] should resolve to an unsigned integer....

Try adding a cout << x + ( y * max_width ) and see what ye' get

**Vicious** · 09-26-2004

std::cout << x + ( y * max_width );

that worked fine.

x, y, and max_width are floats. BUT I tried changing them to different types and it gives me the same error.

EDIT:
AH, I tried changing them to int again and it worked.
Lemme see if I can resolve the problem.

**The Brain** · 09-26-2004

hmmm... a floating point array subscript may be your problem.. a simple cast to integer should fix the problem...

give this a try...

Code:

display[(int)x +(int) ( y * max_width )]

**Vicious** · 09-26-2004

I changed all of the variables involved to ints. I figured it would be faster that converting all the time.

Thanks for your help!

**The Brain** · 09-26-2004

righteous.

MSVC++ error

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