unique_ptr in Qt project

Question

I have a simple Qt project. I include <memory> but std::unique_ptr is not available. I know that I should use Qt specific smart pointers but I need to include a larger project that contains std::unique_ptr.

What can I do?

Thanks!

Answer 1

C++11 is required for smart pointers. Depending on your version of Qt:

Add CONFIG += c++11 to your .pro file if you have Qt5 and above. It needs to include <memory> as Simon mentioned.

If you have an earlier version than Qt5, try adding this:
QMAKE_CXXFLAGS += -std=c++11

Answer 2

Include memory:

#include <memory>

Configure your Qt project to use C++11. Add to your .pro file:

CONFIG += c++11

If that does not solve the problem, please add a detailed error message.