Pimpl c++

// --------------------
// interface (widget.h)
class widget
{
    // public members
private:
    struct impl; // forward declaration of the implementation class
    // One implementation example: see below for other design options and trade-offs
    std::experimental::propagate_const< // const-forwarding pointer wrapper
        std::unique_ptr<                // unique-ownership opaque pointer
            impl>> pImpl;               // to the forward-declared implementation class
};
 
// ---------------------------
// implementation (widget.cpp)
struct widget::impl
{
    // implementation details
};

Source: en.cppreference.com

Similar codes

1 vote185 views1 answer
Avrational compare
C++
0 vote173 views5 answers
Online c++ graphics compiler
C++
0 vote167 views1 answer
Cpp pushfront vector
C++
-1 vote221 views1 answer
Can derived class access private members
C++
0 vote172 views1 answer
Flutter text direction auto
C++
0 vote184 views1 answer
Srand() c++
C++
0 vote232 views1 answer
C++ get environment variable
C++
0 vote798 views1 answer
C++ string erase all occurrences
C++
-1 vote215 views1 answer
C++ set console title
C++
0 vote169 views1 answer
Setw in c++
C++