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QProperty: only use MSVC bug workaround on MSVC 

The fix for QTBUG-106277 appears to cause issues with older gcc versions
in C++2a mode (for instance used in our headers check).
Thus, use the old code for all non-MSVC compilers, which never had
problems with it.

Pick-to: 6.4 6.2
Fixes: QTBUG-108039
Change-Id: If6a0ce6e8f41e9dc752614557e96c555ca0fe75c
Reviewed-by: Ulf Hermann <ulf.hermann@qt.io>
bb10
Fabian Kosmale 2022-10-31 08:36:59 +01:00
parent c4cb464d74
commit 62a2951795
1 changed files with 10 additions and 1 deletions
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11
src/corelib/kernel/qproperty.h
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@ -18,7 +18,16 @@
#if defined(__cpp_lib_source_location)
#define QT_SOURCE_LOCATION_NAMESPACE std
#define QT_PROPERTY_COLLECT_BINDING_LOCATION
#define QT_PROPERTY_DEFAULT_BINDING_LOCATION QPropertyBindingSourceLocation::fromStdSourceLocation(std::source_location::current())
#if defined(Q_CC_MSVC)
/* MSVC runs into an issue with constexpr with source location (error C7595)
so use the factory function as a workaround */
# define QT_PROPERTY_DEFAULT_BINDING_LOCATION QPropertyBindingSourceLocation::fromStdSourceLocation(std::source_location::current())
#else
/* some versions of gcc in turn run into
expression ‘std::source_location::current()’ is not a constant expression
so don't use the workaround there */
# define QT_PROPERTY_DEFAULT_BINDING_LOCATION QPropertyBindingSourceLocation(std::source_location::current())
#endif
#endif
#endif