I'm porting from Qt 5.15.12 to 6.4.3, and now MSVC 2019 is giving me a
ton of compiler warnings about QTaggedPointer.
I don't know what that is, except I see it used in qproperty.h and I use
a lot of Q_GADGET classes with Q_PROPERTYs.
I'm using /W3 in MSVC and compiling for 64-bit. I've enabled some extra
warnings on top, but not C2424.
Any suggestions on how to shut it up?
Hamish
1>C:\qt\Qt6.4.2\6.4.2\msvc2019_64\include\QtCore\qtaggedpointer.h(24,1):
warning C4242: 'initializing': conversion from 'uint' to 'const quint8',
possible loss of data
1>C:\qt\Qt6.4.2\6.4.2\msvc2019_64\include\QtCore\qtaggedpointer.h(55,1):
message : see reference to class template instantiation
'QtPrivate::TagInfo<T>' being compiled
1> with
1> [
1> T=quint16
1> ]
1>C:\qt\Qt6.4.2\6.4.2\msvc2019_64\include\QtCore\qtaggedpointer.h(49,1):
message : while compiling class template member function
'QTaggedPointer<Storage,QtPrivate::QConstPreservingPointer<void,Storage>::Tag>::QTaggedPointer(T
*,Tag) noexcept'
1> with
1> [
1> Storage=quint16,
1> T=quint16,
1> Tag=QtPrivate::QConstPreservingPointer<void,quint16>::Tag
1> ]
1>C:\qt\Qt6.4.2\6.4.2\msvc2019_64\include\QtCore\qiterable.h(32,24):
message : see reference to function template instantiation
'QTaggedPointer<Storage,QtPrivate::QConstPreservingPointer<void,Storage>::Tag>::QTaggedPointer(T
*,Tag) noexcept' being compiled
1> with
1> [
1> Storage=quint16,
1> T=quint16,
1> Tag=QtPrivate::QConstPreservingPointer<void,quint16>::Tag
1> ]
1>C:\qt\Qt6.4.2\6.4.2\msvc2019_64\include\QtCore\qiterable.h(19):
message : see reference to class template instantiation
'QTaggedPointer<Storage,QtPrivate::QConstPreservingPointer<void,Storage>::Tag>'
being compiled
1> with
1> [
1> Storage=quint16
1> ]
1>C:\qt\Qt6.4.2\6.4.2\msvc2019_64\include\QtCore\qiterable.h(413):
message : see reference to class template instantiation
'QtPrivate::QConstPreservingPointer<void,quint16>' being compiled
1>C:\qt\Qt6.4.2\6.4.2\msvc2019_64\include\QtCore\qiterable.h(508,2):
message : see reference to class template instantiation
'QIterable<Container>' being compiled
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