7437 - nsString Cut() method bug

Status: RESOLVED FIXED

(Core Graveyard :: Tracking, defect, P1)

Description

[Robert John Churchill]

Rick, after your nsString/nsString2 landing, we're noticed a bug that I'm hoping
you can fix quickly.  Basically, the following code fails:

nsAutoString	attribValue;
if (attribValue.Find("rdf:") == 0)
{
    attribValue = attribValue.Cut(0,4);
}

The Cut() method seems to be returning crap in "attribValue".  It was working
fine on Friday afternoon though before your landing.

Comment 1

[Chris Waterson]

Rick, removing the assignment ended up fixing the problem, so...I think you're
right about it being an edge case with self-assignment.

Comment 2

[rickg]

This was not a cut problem, but a user error. However, it usefully illustrated
that I needed to add logic to the assign and operator= to prevent assigning a
string to itself.