Subj : Rhino bug in parseFloat with + or -
To   : netscape.public.mozilla.jseng
From : junk
Date : Wed Aug 11 2004 08:32 pm

Hello,

I believe I discovered a bug in Rhino's parseFloat implemenation.  I'm
currently using 1.5R5.  If you type parseFloat("+") or parseFloat("-")
within the console you'll get a StringIndexOutOfBoundsException.  The
source is line 296 within the NativeGloba.js_parseFloat() method.  The
cause is the following two lines of code:

if (c == '+' || c == '-')
    c = s.charAt(++i);

If I understand it correctly, parseFloat should return NaN in this
situation.  Therefore, to correct the problem, I changed those lines
to:

if (c == '+' || c == '-') {
    if (len == 1)
        return ScriptRuntime.NaNobj;
        	
    c = s.charAt(++i);
}

Please let me know if this is wrong.

Thanks,

-Josh <G>

.