The Old New Thing

What does 1#J mean? A strange corner case of the printing of special values

February 28, 2013 Feb 28, 2013 02/28/13

Raymond Chen

As a puzzle, commenter nobugz asks, "What kind of infinity is 1.#J?" double z = 0; printf("%.2f", 1/z); Now, the division by zero results in IEEE positive infinity, would would normally be printed as 1#INF. But the catch here is that the print format says "Display at most two places after the decimal point." But where is the decimal point...

Is there a way to specify an icon to appear next to a menu item via the resource template?

February 28, 2013 Feb 28, 2013 02/28/13

Raymond Chen

The structure lets you specify a bitmap to appear next to the menu item. Is there a way to do this from a menu resource template? No. If you look at the format of menu templates, you'll see that there is nowhere to specify a bitmap. Which kind of makes sense, because it is the responsibility of the application to destroy the bitmap ...