Path: utzoo!attcan!uunet!snorkelwacker!apple!well!smoke
From: smoke@well.sf.ca.us (Nicholas Jackiw)
Newsgroups: comp.sys.mac.programmer
Subject: Re: Reading Numbers from Modal Dialog Items...PLEASE HELP
Summary: use SANE
Message-ID: <20760@well.sf.ca.us>
Date: 25 Sep 90 17:29:20 GMT
References: <29331@netnews.upenn.edu>
Organization: Whole Earth 'Lectronic Link, Sausalito, CA
Lines: 25

In article <29331@netnews.upenn.edu> isler@grad1.cis.upenn.edu (Sylvia-Kay ISLER) writes:
>I am writing a program in Think C 3.0 that has to obtain floating point values
>from modal dialog items. I am running into serious problems.
>
>Sylvia Isler
>isler@grad1.cis.upenn.edu

You might want to try using SANE.  It has a call, Str2Num(aStr:Str255) which
takes a pascal string and returns an extended floating point value.  It's very
efficient, and has the advantage of supporting not only a "standard" (so, if
it has meaning in your program, users can easily enter infinity and other
difficult-to-represent numeric notions) but also of being fully script-
manager compatible, so that if a eurouser should separate units from
decimal portion with a comma instead of a period, it won't choke. 

The _Apple Numerics Manual_ is the ostensible source for more info, but
it's not very helpful.  I tend to just browse my SANE headers for the
appropriate declarations and work from there.


-- 
                              --- * ---
Nicholas Jackiw                Smoke@well.sf.ca.us | Jackiw@cs.swarthmore.edu
Key Curriculum Press, Inc.     Applelink: D3970    | (415) 548-2304
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