C / C++ / MFC

<br />
/*Copy strings*/<br />
#include "stdafx.h"<br />
#include <iostream><br />
using namespace std;<br />
<br />
/*Achieve via array*/<br />
void copy_array(char from[], char to[])<br />
{<br />
	int i = 0;<br />
	while(from[i] != '\0')<br />
	{<br />
		to[i] = from[i];<br />
		i++;		<br />
	}<br />
	to[i] = '\0';<br />
}<br />
<br />
/*Achieve via pointer*/<br />
void copy_pointer(char *from, char *to)<br />
{<br />
	while((*to++ = *from++) != '\0');<br />
}<br />
<br />
int _tmain(int argc, _TCHAR* argv[])<br />
{<br />
	char *from = "c plus plus";<br />
	char *to = "oooooooooooooooo";<br />
	//copy_array(from, to);<br />
	copy_pointer(from, to);//Here: Test.exe Department of 0x00411536 unhandled exception: <br />
			   //0xC0000005: Write Access Violation occurs when the <br />
			   //position of 0x00417ac8,Why?	<br />
<br />
	cout << to << endl;<br />
<br />
	return 0;<br />
}<br />