no warning when assigning a string to itself; infinite loop when printing a string

[Steve Ward <planet36 at gmail dot com>]

In the attached code, the line "const string str = str;" doesn't give
a warning.  Is this right?  If I change the data type to an "int", a
warning is given. ("warning: 'str' is used uninitialized in this
function")

Also, when trying to print the string, it seems to execute forever.


Thanks,
Steve

/*

$ g++ --version
g++ (Ubuntu/Linaro 4.5.2-8ubuntu4) 4.5.2
Copyright (C) 2010 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

$ g++ -Wall gcc_no_warning.cpp && ./a.out

*/

#include <iostream>

using namespace std;

int main()
{
	// no warning
	const string str = str;

	// infinite loop
	cout << str << endl;

	return 0;
}