C++: CONST CAST

Spent about 20 minutes trying to figure out why this wasn't compiling.

void CImageLoader::LoadImageL(const TDesC& filename) {
----TDesC* tmp = &filename; // COMPILER ERROR
}

It's because filename is CONST. So we'll have to 'unconst' it for this line to work:

TDesC* tmp = &(const_cast(filename));