Re: Need help in converting strings to doubles

On Tue, 30 May 2000 thies@digicol.de wrote: > On Mon, May 29, 2000 at 08:56:38PM +0300, Andi Gutmans wrote: > > Guys, > > > > I wrote a conversion function which converts strings to double. I am > > hoping to use it instead of strtod(). The main issue I have left (except > > for supporting end_ptr which will take me a few minutes), is how to detect > > overflow and underflows and thus, support the return of +/- HUGE_VAL and > > the setting of errno to ERANGE like strtod() does. > > > > Does anyone here have an idea of how to write such support? The glibc > > source looks quite horrible. > > > > Take a look at zend_operators.c:zend_string_to_double() > > as i said in my 1st mail, it looks too simple... > > have you had a look at the OpenBSD implemetation? Looking too simple doesn't mean much. They deal with tons of locale crap which I don't intend to deal with and they deal with overflows and underflows which I intend to deal with. I looked at the glibc implementation but it is quite complex. We probably don't need such complexity although we still need to add some stuff. Andi