Re: stupid desktop question

[Matthew Wilcox <matthew@wil.cx>]

On Thu, Dec 16, 2004 at 04:51:10PM +1100, Ian Wienand wrote:
> -		int x      = workareas [i];
> -		int y      = workareas [i + 1];
> -		int width  = workareas [i + 2];
> -		int height = workareas [i + 3];
> +		int x      = (int) workareas [i];
> +		int y      = (int) workareas [i + 1];
> +		int width  = (int) workareas [i + 2];
> +		int height = (int) workareas [i + 3];

How does this bit make any difference?  C99 6.5.4:

  Preceding an expression by a parenthesized type name converts the
  value of the expression to the named type. This construction is called
  a cast. A cast that specifies no conversion has no effect on the
  type or value of an expression.

and 6.5.16.1:
  In simple assignment (=), the value of the right operand is converted
  to the type of the assignment expression and replaces the value stored
  in the object designated by the left operand.

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain