I have some code:
#include <string>
#include <memory>
#include <queue>
template <typename T>
class MyQueue {
public:
MyQueue() {
q_(new std::queue<T>);
}
private:
std::unique_ptr<std::queue<T>> q_;
};
int main() {
MyQueue<std::string> queue;
return 0;
}
When I compile with g++ (-std=c++11) I get an output that indicates that I am not constructing my unique_ptr properly. What is the 'proper' way to construct such a unique_ptr?
The output:
test.cc: In instantiation of ‘MyQueue<T>::MyQueue() [with T =
std::__cxx11::basic_string<char>]’:
test.cc:18:24: required from here
test.cc:9:5: error: no match for call to
‘(std::unique_ptr<std::queue<std::__cxx11::basic_string<char>,
std::deque<std::__cxx11::basic_string<char>,
std::allocator<std::__cxx11::basic_string<char> > > >,
std::default_delete<std::queue<std::__cxx11::basic_string<char>,
std::deque<std::__cxx11::basic_string<char>,
std::allocator<std::__cxx11::basic_string<char> > > > > >)
(std::queue<std::__cxx11::basic_string<char>,
std::deque<std::__cxx11::basic_string<char>,
std::allocator<std::__cxx11::basic_string<char> > > >*)’
q_(new std::queue<T>);
^
