A class which can hold instances of any type. More...

#include <any.h>

Collaboration diagram for lunchbox::Any:

Public Member Functions
Construction/Destruction
	Any ()
	Construct a new, empty Any. More...

template<typename ValueType >
	Any (const ValueType &value)
	Construct a new Any with the given value. More...

	Any (const Any &other)
	Copy-construct a new Any with copying content of other. More...

	~Any ()
	Destruct this Any. More...

Modifiers
Any &	swap (Any &rhs)
	Exchange the content of this and rhs. More...

template<typename ValueType >
Any &	operator= (const ValueType &rhs)
	Assign a new value to this Any. More...

Any &	operator= (Any rhs)
	Exchange the content of this and rhs. More...

Queries
bool	empty () const

const std::type_info &	type () const

bool	operator== (const Any &rhs) const

bool	operator!= (const Any &rhs) const

Friends
class	boost::serialization::access

template<typename ValueType >
ValueType *	any_cast (Any *)
	Retrieve the value stored in an Any including type checking. More...

template<typename ValueType >
ValueType *	unsafe_any_cast (Any *)
	Retrieve the value stored in an Any without type checking. More...

Detailed Description

A class which can hold instances of any type.

This class is based on boost.any with the extension to support serialization if the ValueType supports boost.serialization.

Example:

/* Copyright (c) 2012, Daniel Nachbaur <danielnachbaur@gmail.com>
 *
 * This library is free software; you can redistribute it and/or modify it under
 * the terms of the GNU Lesser General Public License version 2.1 as published
 * by the Free Software Foundation.
 *
 * This library is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more
 * details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this library; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */
#include <lunchbox/test.h>
#include <lunchbox/any.h>
int main(int, char**)
{
    lunchbox::Any any;
    lunchbox::Any otherAny;
    TEST(any.empty());
    TEST(any.type() == typeid(void));
    TEST(any == otherAny);
    any = 5;
    otherAny = any;
    TEST(lunchbox::any_cast<int>(any) == 5);
    TEST(any.type() == typeid(int));
    TEST(any == otherAny);
    any = 42;
    otherAny = 42;
    TEST(lunchbox::any_cast<int>(any) == 42);
    TEST(any == otherAny);
    any = std::string("blablub");
    TEST(lunchbox::any_cast<std::string>(any) == "blablub");
    TEST(any.type() == typeid(std::string));
    TEST(any != otherAny);
    try
    {
        TEST(lunchbox::any_cast<int>(any) != 42);
    }
    catch (const lunchbox::bad_any_cast&)
    {
    }
    return EXIT_SUCCESS;
}