qt应用程序和std :: shared_ptr

Question

I want to create a qt application ( using qt-creator ), that use my library, that was build in VS2010. A library contains a class, that use std::shred_ptr<>

#include <memory>
struct MyStruct;

class MyClass
{
    public:
    MyClass::MyClass();

    protected:
    std::shared_ptr<MyStruct> mMember;
}

Then I include library to the application, using This tutorial . And gets next errors:

ISO C++ forbids declaration of 'shared_ptr' with no type
invalid use of '::'
expected ';' before '<' token

Is a way to solve this problem?

* PS *Was corrected code( added include and parameter class of shared_ptr ). But this things already been in original code. I think, the problem in the qt-creator compiler. But I don't know exactly, because I'm pretty new in qt programming.

Answer 1

Make sure you use C++11 flag for compiler. For example, in your .pro -file:

QMAKE_CXXFLAGS += -std=c++0x

Answer 2

There's no definition of MyClass2 int the code you shared.

I believe you were trying to do std::shared_ptr<MyClass> mMember;

Answer 3

Include <memory> before defining the class. Also make sure MyClass2 is declared.