/usr/include/globjects/base/ref_ptr.h is in libglobjects-dev 1.1.0-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 | #pragma once
namespace globjects
{
class Referenced;
/** \brief The ref_ptr class provides the interface for a reference pointer.
It is meant to be used together with subclasses of Referenced*
The usage of a ref_ptr is quite the same as the work with normal pointers.
This ref_ptr will be automatically cast to a normal pointer automatically
so it can be used with the globjects API without any inconvenience.
Example code:
\code{.cpp}
ref_ptr<VertexArrayObject> vao = new VertexArrayObject();
...
vao->drawElements(gl::GL_TRIANGLE_STRIP, 0, 4);
// vao will be deleted automatically as the ref_ptr goes out of scope
\endcode
\see Referenced
*/
template<typename T>
class ref_ptr
{
// static_assert(std::is_base_of<Referenced, T>::value, "T is not a subclass of Referenced");
public:
ref_ptr();
ref_ptr(T * referenced);
ref_ptr(const ref_ptr & reference);
ref_ptr(ref_ptr && reference);
~ref_ptr();
ref_ptr & operator=(T * referenced);
ref_ptr & operator=(const ref_ptr & reference);
T * get() const;
T & operator*() const;
T * operator->() const;
operator T *() const;
bool operator<(const ref_ptr & reference) const;
bool operator>(const ref_ptr & reference) const;
bool operator==(const ref_ptr & reference) const;
bool operator!=(const ref_ptr & reference) const;
bool operator<(T * pointer) const;
bool operator>(T * pointer) const;
bool operator==(T * pointer) const;
bool operator!=(T * pointer) const;
protected:
void increaseRef();
void decreaseRef();
protected:
mutable const Referenced * m_referenced;
};
template<typename T, typename... Args>
ref_ptr<T> make_ref(Args&&... args);
} // namespace globjects
#include <globjects/base/ref_ptr.inl>
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