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The Windows Access Control Model: Part 2

, 27 Jun 2005 CPOL 157.9K 5.8K 109
This second part of the Access Control series will program with the basic Access Control structures.
boost.zip
boost
config
compiler
platform
stdlib
detail
mpl
aux_
config
preprocessed
bcc
bcc551
gcc
msvc60
msvc70
mwcw
no_ctps
no_ttp
plain
preprocessor
range_c
preprocessor
arithmetic
detail
array
comparison
config
control
detail
edg
msvc
detail
facilities
iteration
detail
bounds
iter
list
detail
edg
logical
punctuation
repetition
detail
edg
msvc
selection
seq
detail
slot
detail
tuple
regex
v3
test
detail
included
type_traits
detail
utility
userfun.zip
ATL
release
UserFun.exe
LowLevel
release
LowLevel.exe
2000
release
2000.exe
whoami.zip
Whoami
release
Whoami.exe
/**
*	This class is just like std::scoped_array, but for paranoia, we're going to zero all memory allocated.
*	This makes it act more like a C99 VLA rather than an auto_ptr. Due to the lack of export keyword support
*	in many C++ compilers, The class cannot be exported from a DLL.
**/
#pragma once

#ifndef _ALGORITHM_
#include <algorithm>
#endif /* _ALGORITHM. We need copy and fill from here */

#ifndef BOOST_SCOPED_ARRAY_HPP_INCLUDED
#include <boost/scoped_ptr.hpp>
#endif /* BOOST_SCOPED_ARRAY_HPP_INCLUDED */

namespace boost {

template<typename DatType>
class sized_array : public scoped_array<DatType>
{
private:
	size_t Size;
public:
	explicit sized_array (size_t len = 1) : scoped_array<DatType>(new DatType[len]), Size(len)
	{
		std::fill/*<DatType *, DatType>*/(this->get(), this->get() + len, 0);
	};

	sized_array(const sized_array &OldClass) : Size(OldClass.Size), OurPtr(new DatType[OldClass.Size])
	{
		std::copy<const DatType *, DatType *>(get(), this->get() + Size, OurPtr);
	};

	void resetex(size_t len = 1)
	{/* Also called release and reallocate. */
		this->reset(new DatType[len]);
		std::fill/*<DatType *, DatType>*/(this->get(), this->get() + len , 0);
		Size = len;
	};

	size_t get_Size(void)
	{/* For Convenience */
		return Size;
	};

	sized_array &operator=(const sized_array &OldClass)
	{/* This equality may be required by CObjSecurity. */
		if(this==&OldClass) return *this;

		Size = OldClass.Size;
		this->reset(Size);
		std::copy<const DatType *, DatType *>(OldClass.get(), OldClass.get() + Size, OurPtr);
		return *this;
	};

	virtual ~sized_array()
	{
		Size = 0;
	};
};

} /* namespace std */

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About the Author

oshah
Web Developer
United States United States
Mr. Shah is a reclusive C++/C# developer lurking somewhere in the depths of the city of London. He learnt physics at Kings' College London and obtained a Master in Science there. Having earned an MCAD, he teeters on the brink of transitioning from C++ to C#, unsure of which language to jump to. Fortunately, he also knows how to use .NET interop to merge code between the two languages (which means he won't have to make the choice anytime soon).

His interests (apart from programming) are walking, football (the real one!), philosophy, history, retro-gaming, strategy gaming, and any good game in general.

He maintains a website / blog / FAQ / junk at shexec32.serveftp.net, where he places the best answers he's written to the questions you've asked. If you can find him, maybe you can hire Mr. Shah to help you with anything C++[/CLI]/C#/.NET related Smile | :) .

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