If Statements

[zb0S216C]

This has been really bugging me. I see codies using if statements like this:

int Variable( 10 );
if( Variable )
    // do something... 

I don't understand it. What is it testing for? Can anybody explain this?

[filipe]

It's testing whether Variable's value is non-zero.

[zb0S216C]

Simple enough. Thanks, Filipe.

[Mathhead200]

int n = ...;
bool b = n; //implicit cast

//now
if( n == 0 )
	assert( b == false );
else
	assert( b == true );

//or
if( b )
	assert( n != 0 );
else
	assert( n == 0 );