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  1. Qt
  2. QTBUG-123153

qfutureinterface.h:472:37: error: template-id not allowed for constructor in C++20 [-Werror=template-id-cdtor]

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Details

    • Bug
    • Resolution: Fixed
    • P1: Critical
    • 6.7.1, 6.8.0
    • 6.8
    • Core: Threads
    • Linux/Wayland, Linux/X11
    • 111c08d0eaa134652f1f1e602ead1a539614258f
    • Foundation PM Staging

    Description

      qtbase e65dc193327c207d71e20fa14a5dbf1a988afd60
      g++ (GCC) 14.0.1 20240228 (Red Hat 14.0.1-0)

      Fedora Rawhide 20240308

      FAILED: src/corelib/CMakeFiles/Core.dir/kernel/qcoreapplication.cpp.o 
      /usr/bin/c++ -DBACKTRACE_HEADER=\"execinfo.h\" -DCore_EXPORTS -DELF_INTERPRETER=\"/lib/ld-linux-aarch64.so.1\" -DQT_ASCII_CAST_WARNINGS -DQT_BUILDING_QT -DQT_BUILD_CORE_LIB -DQT_DEPRECATED_WARNINGS -DQT_DISABLE_DEPRECATED_UP_TO=0x050000 -DQT_EXPLICIT_QFILE_CONSTRUCTION_FROM_PATH -DQT_LEAN_HEADERS=1 -DQT_MOC_COMPAT -DQT_NO_AS_CONST -DQT_NO_CAST_TO_ASCII -DQT_NO_CONTEXTLESS_CONNECT -DQT_NO_FOREACH -DQT_NO_JAVA_STYLE_ITERATORS -DQT_NO_NARROWING_CONVERSIONS_IN_CONNECT -DQT_NO_QEXCHANGE -DQT_NO_QPAIR -DQT_NO_USING_NAMESPACE -DQT_STRICT_QLIST_ITERATORS -DQT_TYPESAFE_FLAGS -DQT_USE_QSTRINGBUILDER -DQT_WARN_DEPRECATED_UP_TO=0x070000 -D_LARGEFILE64_SOURCE -D_LARGEFILE_SOURCE -I/home/liangqi/qt/qtbase-build/src/corelib/Core_autogen/include -I/home/liangqi/qt/qtbase-build/include -I/home/liangqi/qt/qtbase-build/include/QtCore -I/mnt/hgfs/liangqi/qt/qtbase/src/corelib -I/home/liangqi/qt/qtbase-build/src/corelib -I/home/liangqi/qt/qtbase-build/src/corelib/global -I/home/liangqi/qt/qtbase-build/src/corelib/kernel -I/mnt/hgfs/liangqi/qt/qtbase/src/corelib/../3rdparty/tinycbor/src -I/home/liangqi/qt/qtbase-build/include/QtCore/6.8.0 -I/home/liangqi/qt/qtbase-build/include/QtCore/6.8.0/QtCore -I/mnt/hgfs/liangqi/qt/qtbase/src/corelib/../3rdparty/forkfd -I/home/liangqi/qt/qtbase-build/src/corelib/.rcc -I/home/liangqi/qt/qtbase-build/mkspecs/linux-g++ -isystem /usr/include/glib-2.0 -isystem /usr/lib64/glib-2.0/include -g -std=c++17 -fPIC -fvisibility=hidden -fvisibility-inlines-hidden -Wall -Wextra -fexceptions -Werror -Wno-error=cpp -Wno-error=deprecated-declarations -Wno-error=strict-overflow -Wno-error=implicit-fallthrough -Wno-error=deprecated-copy -Wno-error=redundant-move -Wno-error=init-list-lifetime -Wno-error=format-overflow -Wno-error=stringop-overflow -Wno-error=deprecated-enum-enum-conversion -Wno-error=deprecated-enum-float-conversion -Wsuggest-override -Winvalid-pch -include /home/liangqi/qt/qtbase-build/src/corelib/CMakeFiles/Core.dir/cmake_pch.hxx -MD -MT src/corelib/CMakeFiles/Core.dir/kernel/qcoreapplication.cpp.o -MF src/corelib/CMakeFiles/Core.dir/kernel/qcoreapplication.cpp.o.d -o src/corelib/CMakeFiles/Core.dir/kernel/qcoreapplication.cpp.o -c /mnt/hgfs/liangqi/qt/qtbase/src/corelib/kernel/qcoreapplication.cpp
      In file included from /home/liangqi/qt/qtbase-build/include/QtCore/qfutureinterface.h:1,
                       from /mnt/hgfs/liangqi/qt/qtbase/src/corelib/thread/qpromise.h:8,
                       from /home/liangqi/qt/qtbase-build/include/QtCore/qpromise.h:1,
                       from /mnt/hgfs/liangqi/qt/qtbase/src/corelib/kernel/qcoreapplication.cpp:30:
      /mnt/hgfs/liangqi/qt/qtbase/src/corelib/thread/qfutureinterface.h:472:37: error: template-id not allowed for constructor in C++20 [-Werror=template-id-cdtor]
        472 |     explicit QFutureInterface<void>(State initialState = NoState)
            |                                     ^~~~~
      /mnt/hgfs/liangqi/qt/qtbase/src/corelib/thread/qfutureinterface.h:472:37: note: remove the ‘< >’
      cc1plus: all warnings being treated as errors
      [220/1624] Building CXX object src/corelib/CMakeFiles/Core.dir/plugin/qfactoryloader.cpp.o
      ninja: build stopped: subcommand failed.
      

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              thiago Thiago Macieira
              liaqi Liang Qi
              Vladimir Minenko Vladimir Minenko
              Alex Blasche Alex Blasche
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                Updated:
                Resolved:

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