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distributing data across a structure (new to c please help)

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the ulimate goal is to read the MZ header from a binary windows pe file, which is simple enough. anyway the theory goes (and this is the bit i dont understand im new to c programming) i memcpy the data from the file ACROSS a struct. is this possible? i dont understand how to initialise and manipulate the struct. can i copy a set of data that is 16bytes long, to a struct with two 8byte children and will memcpy then distribute the data for me if i pass it pointers?

it sounds easy but im really struggling to get to grips with it. anyway heres a simple c program i wrote to demonstrate the concept. it fails with the error Run-Time Check Failure #3 - The variable 'x' is being used without being initialized.

for example i should be able to access string "00004444" with x->b; and "eeeeffff" with x->bb;

im on windows running visual c++ 2010 express, although im coding purely in c because i never saw the point in object orientated programming.

help please?

[code]
// pointblank.c : Defines the entry point for the console application.
//

#include "stdafx.h"
#include "stdio.h"
#include "stdlib.h"
#include "string.h"

typedef struct _test {
	char b[8];
	char bb[8];
}; test, *ptest;

int _tmain(int argc, _TCHAR* argv[])
{
	struct _test * x;
	char* s[16] = {"00004444eeeeffff"};
	memcpy (x,s,16);

	return 0;
}
[/code]

i honestly dont get it, if you could spend five minutes coding it for me so i can learn from reading your code would be excellent. this is a large scale project im working on but im totally new to c so its a bit... odd for me. im trying to write a pe file disassembler (just so you know). why? why the heck not? - nwdpil
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distributing data across a structure (new to c please help) nwdpil <mkeput@gmail.com> - 2012-08-09 20:32 -0500
  Re: distributing data across a structure (new to c please help) James Kuyper <jameskuyper@verizon.net> - 2012-08-10 00:43 -0500
  Re: distributing data across a structure (new to c please help) Dennis Yurichev <dennis_mailing_lists@conus.info> - 2012-08-20 14:17 -0500
    Re: distributing data across a structure (new to c please help) Keith Thompson <kst-u@mib.org> - 2012-08-20 22:10 -0500
    Re: distributing data across a structure (new to c please help) Jorgen Grahn <grahn+nntp@snipabacken.se> - 2012-08-20 22:11 -0500

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