How can I solve this bug in share-ptr signal slot ::-1: error: [CMakeFiles/signalSlotsharePtr_autogen.dir/build.make:58: CMakeFiles/signalSlotsharePtr_autogen] Error 1

nasimChildOfDesert

Re: Can't pass a signal with QSharedPointer (or std::shared_ptr<>) between threads

hi
the program is this:
#include <QCoreApplication>
#include <iostream>
#include <memory>
#include <QObject>
#include <QMetaType>

class Student : public QObject
{
Q_OBJECT

public:
void printOrder()
{
emit calledtoPrint();
}

signals:
void calledtoPrint();
};
Q_DECLARE_METATYPE(Student)

class Printer : public QObject
{
Q_OBJECT
//uncrustify off
public slots:
//uncrustify on
void print()
{
std::cout << " print the request" << std::endl;
}
};
Q_DECLARE_METATYPE(Printer)
int main(int argc, char* argv[])
{
QCoreApplication a(argc, argv);

std::shared_ptr<Student> std = std::make_shared<Student>();
std::shared_ptr<Printer> print = std::make_shared<Printer>();
QObject::connect(std.get(), &Student::printOrder, print.get(), &Printer::print);

std::cout << "Program start " << std::endl;

std->printOrder();

return a.exec();

}

jsulm

@nasimChildOfDesert Please post the actual error.

nasimChildOfDesert

@nasimChildOfDesert

it doesnt build and show this:
:-1: error: [CMakeFiles/signalSlotsharePtr_autogen.dir/build.make:58: CMakeFiles/signalSlotsharePtr_autogen] Error 1

jsulm

@nasimChildOfDesert This is not the actual error!
The actual error should be somewhere wbove that line. Please post it...

nasimChildOfDesert

@nasimChildOfDesert
iknow it is not specific error but i have this problem and share it . maybe someone help me.i cant build ,y cmake program in qt

jsulm

@nasimChildOfDesert Why don't you simply post the error message?!

nasimChildOfDesert

@jsulm
you know , when i build my program it show this error .
i send all of the code.did you see that?

jsulm

@nasimChildOfDesert I will repeat this one more time: the actual error is above the line you posted! Can you please post the error? You can also post the whole build log.

This is not the error: :-1: error: [CMakeFiles/signalSlotsharePtr_autogen.dir/build.make:58: CMakeFiles/signalSlotsharePtr_autogen] Error 1
It just tells you that there was an error. The error message must be ABOVE that line...

jsulm

@nasimChildOfDesert said in How can I solve this bug in share-ptr signal slot ::-1: error: [CMakeFiles/signalSlotsharePtr_autogen.dir/build.make:58: CMakeFiles/signalSlotsharePtr_autogen] Error 1:

i send all of the code.did you see that?

I'm not asking for code, but for the error message...

nasimChildOfDesert

@jsulm
im sorry : the compile out put is:
11:39:22: Running steps for project signalSlotsharePtr...
11:39:23: Starting: "/usr/bin/cmake" --build . --target clean
11:39:23: The process "/usr/bin/cmake" exited normally.
11:39:23: Starting: "/usr/bin/cmake" --build . --target all
[ 25%] Automatic MOC and UIC for target signalSlotsharePtr

AutoMoc error

"SRC:/main.cpp"
contains a "Q_OBJECT" macro, but does not include "main.moc"!
Consider to

add #include "main.moc"
enable SKIP_AUTOMOC for this file

make[2]: *** [CMakeFiles/signalSlotsharePtr_autogen.dir/build.make:58: CMakeFiles/signalSlotsharePtr_autogen] Error 1
make[1]: *** [CMakeFiles/Makefile2:104: CMakeFiles/signalSlotsharePtr_autogen.dir/all] Error 2
make: *** [Makefile:84: all] Error 2
11:39:23: The process "/usr/bin/cmake" exited with code 2.
Error while building/deploying project signalSlotsharePtr (kit: Desktop Qt 5.13.1 GCC 64bit)
When executing step "CMake Build"
11:39:23: Elapsed time: ۰:۰۰:۰۰.

jsulm

@nasimChildOfDesert said in How can I solve this bug in share-ptr signal slot ::-1: error: [CMakeFiles/signalSlotsharePtr_autogen.dir/build.make:58: CMakeFiles/signalSlotsharePtr_autogen] Error 1:

contains a "Q_OBJECT" macro, but does not include "main.moc"!

This is the error and it also tells you what you should do to fix it:

Consider to

    add #include "main.moc"
    enable SKIP_AUTOMOC for this file

It is better to define QObject based classes in their own header and cpp files.