Difference in __cxa_demangle between gcc 3.3 and 4.0

[Yoav Gonen]

Hi,

I'm not sure this is the right place to ask, but here goes.
I'm compiling the following program:

#include <iostream>
#include <cxxabi.h>

int main(int argc, char * const argv[]) {
	size_t length;
	int status;
	char* p = abi::__cxa_demangle("d", 0, &length, &status);
	if (p) free(p);
	return 0;
}

I'm checking the values of status and p before freeing it.
On gcc 3.3, status = 0 and p = "double".
On gcc 4.0, status = -2 and p = NULL.

Is this a bug?

BTW, I'm using Xcode 2.1 on a Mac OS X 10.4.
 
Thanks,
Yoav