Instigate Open Source Documentation

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src/generic/_default_constructible.hpp

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#ifndef _INSTIGATE_OPEN_SOURCE_INTERNAL_HEADER_IN_CONCEPT
#error This is an internal header file used to implement Instigate Open Source.\
        It should never be included directly by a program.
#endif

#ifndef INSTIGATE_GENERIC_DEFAULT_CONSTRUCTIBLE_HPP
#define INSTIGATE_GENERIC_DEFAULT_CONSTRUCTIBLE_HPP

// Headers from this project

// Headers from other projects

// Headers from standard libraries
#include <new>

// Forward declaration
namespace instigate {
        namespace generic {
                namespace default_constructible {
                        struct tag;
                        template <typename T> struct interface;
                        template <typename T> struct requirements;
                }
        }
}

struct instigate::generic::default_constructible::tag
{
};

template<typename T>
struct instigate::generic::default_constructible::interface 
{
        static T* initialize(char* const p)
        {
                return ::new (static_cast<void*>(p)) T();
        }
}; 

template<typename T>
struct instigate::generic::default_constructible::requirements
{
private:
        static void require_initialize(char* p)
        {
                instigate::generic::default_constructible::interface<T>
                                                        ::initialize(p);
        }

public:

        requirements()
        {
                (void)require_initialize;
        }

private:
        requirements(const requirements&) throw();

        requirements& operator=(const requirements&) throw();
};

// vim:et:tabstop=8:shiftwidth=8:cindent:fo=croq:textwidth=80:

#endif // INSTIGATE_GENERIC_DEFAULT_CONSTRUCTIBLE_HPP

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