Suppressing warning "unused parameter". How?

bogong

VRonin

https://doc.qt.io/qt-5/qtglobal.html#Q_UNUSED

JonB

@bogong
Without knowing which compiler you are using?

If you want to use the Qt macro, Q_UNUSED(var), as per https://doc.qt.io/qt-5/qtglobal.html#Q_UNUSED.

bogong

Got it. Thx. Issue closed.

qwasder85

If you're a cool guy, you can comment out the variable name in the function header:

CoolGuyClass::coolFunction(int /*im_useless*/)

HoMa

@qwasder85 : That is how I would do it and wondered, why the MACRO exists. Today I found a use case: If a variable is unused only in release but used in debug build!
I just wanted to share ...