gamedevlists-windows

[Tom H. <to...@3d...>]

At 06:04 PM 4/22/2002, Rich wrote:
>Well, the compiler will generate code to convert an int (4 bytes) to a
>bool (usually 1 byte), whether or not it matters for performance is
>dubious.
>
>You can eliminate the warning by doing 'bool p = i ? true : false;'

Icky. You don't need conditionals for this.

When I convert between int and bool I've been using the following to get 
rid of the warning:

bool p = i != 0;

or in the case of Win32 API stuff:

bool p = i != FALSE;

In any case ... the performance issue for most cases is probably minimal. I 
would only be concerned if I was doing it inside a tight loop that got 
called a lot and was actually showing up as a spike when profiling. When in 
doubt, check the assembly.

Tom