how to compare the last three characters of QSTring is png

Qt Enthusiast

kshegunov

Don't use QString but QFileInfo for this. There's the corresponding API to work with file extensions.

Qt Enthusiast

but we if have to incliue a extra header file , will no increase the executable size

J.Hilk

@Qt-Enthusiast
if you insist on it, there are still the standart QString functions
splitRef & rightRef and char wise comparing.

kshegunov

@Qt-Enthusiast said in how to compare the last three characters of QSTring is png:

but we if have to incliue a extra header file , will no increase the executable size

How do you figure this? There's no relation between headers of non-template classes (except for the ones containing inline functions) and binary size.

Gerd

just use

QString s;
bool endsWithpng = false;
endsWithpng = s.endsWith("png",Qt::CaseInsensitive);

Regards
gerd