The other way of fixing this is by using ... macros. The article at c++ -
Importing inline functions in MinGW - Stack
Overflow<https://stackoverflow.com/questions/11546403/importing-inline-functions-in-mingw>
mentions using inline in the class declaration.
Their example works fine with both GCC MinGW and Clang MinGW. Visual C++ is
also fine:
#ifdef _WIN32
#define Q_EXPORT_INLINE inline
#else
#define Q_EXPORT_INLINE
#endif
class __declspec(dllimport) MyClass {
public:
Q_EXPORT_INLINE int myFunc2();
Q_EXPORT_INLINE int myFunc1();
};
inline int MyClass::myFunc2(void) {
return myFunc1();
}
inline int MyClass::myFunc1(void) {
return 0;
}
Cheers,
Cristian
________________________________
From: Development <development-boun...@qt-project.org> on behalf of Kai Köhne
via Development <development@qt-project.org>
Sent: Friday, August 25, 2023 11:28
To: development@qt-project.org <development@qt-project.org>; Hasselmann Mathias
<math...@taschenorakel.de>
Subject: Re: [Development] On the use of the inline keyword
Not an GCC expert, but this is the code that emits the warning in GCC:
https://github.com/gcc-mirror/gcc/blob/66be6ed81f369573824f1a8f5a3538a63472292f/gcc/attribs.cc#L1818
First argument for warning() is 0 ... which explains why it cannot be easily
disabled with say -Wno-ignored-attributes.
I therefore don't see an easy way to disable this specific warning.
Regards
________________________________________
From: Development <development-boun...@qt-project.org> on behalf of Hasselmann
Mathias via Development <development@qt-project.org>
Sent: Friday, August 25, 2023 10:34
To: development@qt-project.org
Subject: Re: [Development] On the use of the inline keyword
Am 24.08.2023 um 21:42 schrieb Thiago Macieira:
> That warning looks like a bug in the compiler instead. So if there's no ill-
> effect, I'd just disable and ignore it.
Seems like an easy fix, but breaks user code that explicitly enables
this warning. Guess ignoring is not a good option, if one cares about
user experience.
Ciao
Mathias
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