Details
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Bug
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Resolution: Fixed
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P2: Important
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Qt for MCUs 2.5, Qt for MCUs 2.7
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None
Description
When setting the C++ standard version from CMakeLists.txt:
set(CMAKE_CXX_STANDARD 17)
And trying to use C++ 17 features in the header files that are declared in InterfaceFiles in the qmlproject file, it will produce errors. For example, using std::optional like this
std::optional<int> test() const;
Causes the following error:
/home/srodal/dev/qul/examples/painteditem/oscPaintedItem.h:38:10: error: no template named 'optional' in namespace 'std' Error: no template named 'optional' in namespace 'std' qmlinterfacegenerator -xc++ -resource-dir=/usr/lib/llvm-15/lib/clang/15.0.7 --target=arm-eabi-none-gnu -nostdinc -isystem/home/srodal/dev/qul/build_host/bin/../src/3rdparty/gcc-arm-none-eabi-10.3-2021.10/arm-none-eabi/include/c ++/10.3.1 -isystem/home/srodal/dev/qul/build_host/bin/../src/3rdparty/gcc-arm-none-eabi-10.3-2021.10/arm-none-eabi/include/c++/10.3.1/arm-none-eabi -isystem/home/srodal/dev/qul/build_host/bin/../src/3rdparty/gcc-arm-none-eabi-1 0.3-2021.10/arm-none-eabi/include/c++/10.3.1/backward -isystem/home/srodal/dev/qul/build_host/bin/../src/3rdparty/gcc-arm-none-eabi-10.3-2021.10/lib/gcc/arm-none-eabi/10.3.1/include -isystem/home/srodal/dev/qul/build_host/bin/. ./src/3rdparty/gcc-arm-none-eabi-10.3-2021.10/lib/gcc/arm-none-eabi/10.3.1/include-fixed -isystem/home/srodal/dev/qul/build_host/bin/../src/3rdparty/gcc-arm-none-eabi-10.3-2021.10/arm-none-eabi/include -I/home/srodal/dev/qul/bu ild_stm32f769i-discovery-baremetal-gcc/src/../include -I/home/srodal/dev/qul/include -I/home/srodal/dev/qul/build_stm32f769i-discovery-baremetal-gcc/examples/painteditem/CMakeFiles/painteditem.dir -I/home/srodal/dev/qul/include -I/home/srodal/dev/qul/build_stm32f769i-discovery-baremetal-gcc/examples/painteditem//CMakeFiles/painteditem.dir/ -I/home/srodal/dev/qul/examples/painteditem -I/home/srodal/dev/qul/build_stm32f769i-discovery-baremetal-gcc/exam ples/painteditem//CMakeFiles/Lib_painteditem_3f98.dir/ -I/home/srodal/dev/qul/build_stm32f769i-discovery-baremetal-gcc/include -I/home/srodal/dev/qul/build_stm32f769i-discovery-baremetal-gcc/src/controls -I/home/srodal/dev/qul/ build_stm32f769i-discovery-baremetal-gcc/include/qul/Default /home/srodal/dev/qul/examples/painteditem/oscPaintedItem.h
Ideally, the CMAKE_CXX_STANDARD value set in CMakeLists.txt should be forwarded by qmlprojectexporter to qmlinterfacegenerator using the `-std=c++${CMAKE_CXX_STANDARD}` command line option.
Attachments
Issue Links
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