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Full Discussion: Delete operator overloading with multiple arguments.
Top Forums Programming Delete operator overloading with multiple arguments. Post 302387250 by kapilkumawat on Friday 15th of January 2010 02:58:26 AM
Old 01-15-2010
Error Delete operator overloading with multiple arguments.
Hi,

I have an requirement to overload the delete operator in C++, but it should also accept the sizeof() the object that is to be deleted. Actually I am trying to built a custom memory allocator and deallocator like a pool, which makes me to overload the delete operator.
Small example of the problem is

Code:
#include <new>
#include <iostream>
using namespace std;
void operator delete(void* p)
{
cout << "Hello" << endl;
free(p);
} // (1)
void operator delete(void* p, size_t s)
{
cout << "World" << endl;
free(p);
} // (2)
int main()
{
int* p = new int;
delete p; // This cannot render to show 'Hello' or 'World'
}

Output
Hello

I want to call the delete with size operator. So please help me how can this program will give the output as World.

Thanks in advance for my help.
Last edited by pludi; 01-15-2010 at 04:10 AM.. Reason: code tags, please...
 

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LEARN ABOUT MOJAVE

class::mop::method::overload

Class::MOP::Method::Overload(3) 			User Contributed Perl Documentation			   Class::MOP::Method::Overload(3)

NAME

       Class::MOP::Method::Overload - Method Meta Object for methods which implement overloading

VERSION

       version 2.1202

DESCRIPTION

       This is a Class::MOP::Method subclass which represents methods that implement overloading.

METHODS

       Class::MOP::Method::Overload->wrap($metamethod, %options)
	   This is the constructor. The options accepted are identical to the ones accepted by Class::MOP::Method, except that it also required an
	   "operator" parameter, which should be an operator as defined by the overload pragma.

       $metamethod->operator
	   This returns the operator that was passed to new.

AUTHORS

       o   Stevan Little <stevan.little@iinteractive.com>

       o   Dave Rolsky <autarch@urth.org>

       o   Jesse Luehrs <doy@tozt.net>

       o   Shawn M Moore <code@sartak.org>

       o   XXXX XXX'XX (Yuval Kogman) <nothingmuch@woobling.org>

       o   Karen Etheridge <ether@cpan.org>

       o   Florian Ragwitz <rafl@debian.org>

       o   Hans Dieter Pearcey <hdp@weftsoar.net>

       o   Chris Prather <chris@prather.org>

       o   Matt S Trout <mst@shadowcat.co.uk>

COPYRIGHT AND LICENSE

       This software is copyright (c) 2006 by Infinity Interactive, Inc..

       This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.

perl v5.18.2							    2014-01-19					   Class::MOP::Method::Overload(3)
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