Details
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Bug
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Resolution: Invalid
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Not Evaluated
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None
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5.11.2, 5.12.0 RC2
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None
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VisualStudio.15.Release/15.9.3+28307.145, Windows 10 Pro, msvc2017_64
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Windows
Description
With Visual Studio Version 15.9.3+28307.145, the simple test programs (see below) result in the following IntelliSense errors in the feature test macros:
Error (active) E2512 the argument to a feature-test macro must be a simple identifier QtGuiApplication3 C:\Qt\5.11.2\msvc2017_64\include\QtCore\qcompilerdetection.h 1327 Error (active) E2512 the argument to a feature-test macro must be a simple identifier QtGuiApplication3 C:\Qt\5.11.2\msvc2017_64\include\QtCore\qcompilerdetection.h 1329
The lines are:
#if defined(__cplusplus) #if QT_HAS_CPP_ATTRIBUTE(clang::fallthrough) # define Q_FALLTHROUGH() [[clang::fallthrough]] #elif QT_HAS_CPP_ATTRIBUTE(gnu::fallthrough) # define Q_FALLTHROUGH() [[gnu::fallthrough]] #elif QT_HAS_CPP_ATTRIBUTE(fallthrough) # define Q_FALLTHROUGH() [[fallthrough]] #endif
This is likely due to the colons in clang::fallthrough and gnu::fallthrough
If the Errorlist in VS is changed from Build+IntelliSense to Build, the errors disappear and a build succeeds. Most likely, the Intellisense parser handles this differently from the compiler.
Example Program
#include <QApplication> #include <QLabel> int main(int argc, char* args[]){ QApplication app(argc, args); QLabel label; label.setText("Hello World"); label.show(); app.exec(); }
Full VS configuration is attached.