File content as of revision 29:b6af04b77a56:

/**
 * ACKme WiConnect Host Library is licensed under the BSD licence: 
 * 
 * Copyright (c)2014 ACKme Networks.
 * All rights reserved. 
 * 
 * Redistribution and use in source and binary forms, with or without modification, 
 * are permitted provided that the following conditions are met: 
 * 
 * 1. Redistributions of source code must retain the above copyright notice, 
 * this list of conditions and the following disclaimer. 
 * 2. Redistributions in binary form must reproduce the above copyright notice, 
 * this list of conditions and the following disclaimer in the documentation 
 * and/or other materials provided with the distribution. 
 * 3. The name of the author may not be used to endorse or promote products 
 * derived from this software without specific prior written permission. 
 * 
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS AND ANY EXPRESS OR IMPLIED 
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 
 * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT 
 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 
 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 
 * OF SUCH DAMAGE.
 */
#pragma once


namespace wiconnect
{


/**
 * @brief Generic function pointer.
 * @note Internal use only
 */
class FunctionPointer
{
public:
    /*************************************************************************************************/
    FunctionPointer& operator=( const FunctionPointer& other )
    {
        _object = other._object;
        _function = other._function;
        _membercaller = other._membercaller;
        memcpy(_member, other._member, sizeof(_member));
        return *this;
    }

    /*************************************************************************************************/
    bool isValid() const
    {
        return (_function != NULL) || (_object != NULL);
    }

    /*************************************************************************************************/
    void setInvalid()
    {
        _function = NULL;
        _object = NULL;
    }

protected:
    void *_object;
    void *_function;
    char _member[16];
    void *_membercaller;
};

}