-std=c++11 or -std=gnu++11 in Qt Creator

  • How do I add -std=c++11 or -std=gnu++11 to the compiler, using ?
    I am trying to compile this code in my Win7, but it gives me an error:
    @#include "mainwindow.hpp"
    #include "ui_mainwindow.h"

    MainWindow::MainWindow(QWidget *parent) :
    ui(new Ui::MainWindow)
    lblLabel.reset(new lblLabel);



    delete ui;
    The error is:
    @19:05:13: Running steps for project QtCppGUI...
    19:05:13: Configuration unchanged, skipping qmake step.
    19:05:13: Starting: "D:\Qt64\qt-5.2.1-x64-mingw482r2-sjlj\mingw64\bin\mingw32-make.exe"
    D:/Qt64/qt-5.2.1-x64-mingw482r2-sjlj/mingw64/bin/mingw32-make -f Makefile.Debug
    mingw32-make[1]: Entering directory 'D:/Temp/build-QtCppGUI-MinGW64-Debug'
    g++ -c -pipe -fno-keep-inline-dllexport -g -frtti -Wall -Wextra -fexceptions -mthreads -DUNICODE -DQT_QML_DEBUG -DQT_DECLARATIVE_DEBUG -DQT_WIDGETS_LIB -DQT_GUI_LIB -DQT_CORE_LIB -DQT_OPENGL_ES_2 -DQT_OPENGL_ES_2_ANGLE -DQT_NEEDS_QMAIN -I..\QtCppGUI -I"....\Qt64\qt-5.2.1-x64-mingw482r2-sjlj\qt-5.2.1-x64-mingw482r2-sjlj\include" -I"....\Qt64\qt-5.2.1-x64-mingw482r2-sjlj\qt-5.2.1-x64-mingw482r2-sjlj\include\QtWidgets" -I"....\Qt64\qt-5.2.1-x64-mingw482r2-sjlj\qt-5.2.1-x64-mingw482r2-sjlj\include\QtGui" -I"....\Qt64\qt-5.2.1-x64-mingw482r2-sjlj\qt-5.2.1-x64-mingw482r2-sjlj\include\QtANGLE" -I"....\Qt64\qt-5.2.1-x64-mingw482r2-sjlj\qt-5.2.1-x64-mingw482r2-sjlj\include\QtCore" -I"debug" -I"." -I"." -I"....\Qt64\qt-5.2.1-x64-mingw482r2-sjlj\qt-5.2.1-x64-mingw482r2-sjlj\mkspecs\win32-g++" -o debug\main.o ..\QtCppGUI\main.cpp
    In file included from ..\QtCppGUI\main.cpp:1:0:
    ..\QtCppGUI\mainwindow.hpp:25:19: warning: non-static data member initializers only available with -std=c++11 or -std=gnu++11 [enabled by default]
    QString txt = "Jamiil Testing";
    ..\QtCppGUI\mainwindow.hpp:26:5: error: 'shared_ptr' in namespace 'std' does not name a type
    std::shared_ptr<QtLabel> lblLabel;
    Makefile.Debug:361: recipe for target 'debug/main.o' failed
    mingw32-make[1]: *** [debug/main.o] Error 1
    mingw32-make[1]: Leaving directory 'D:/Temp/build-QtCppGUI-MinGW64-Debug'
    Makefile:34: recipe for target 'debug' failed
    mingw32-make: *** [debug] Error 2
    19:05:15: The process "D:\Qt64\qt-5.2.1-x64-mingw482r2-sjlj\mingw64\bin\mingw32-make.exe" exited with code 2.
    Error while building/deploying project QtCppGUI (kit: MinGW64)
    When executing step 'Make'
    19:05:15: Elapsed time: 00:02.@

  • sorry folks, I found the source of the problem. Humm...

  • Moderators

    Hi Jamil,

    Good you found the problem.

    Could you please mark this topic as solved? You can do that by editing the title of you first and add [solved].

    Even better would be if you tell us what was the problem / solution so this can be usefull for others encountering the same issues.

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