Path: utzoo!censor!geac!torsqnt!jarvis.csri.toronto.edu!mailrus!cs.utexas.edu!usc!apple!well!oster
From: oster@well.sf.ca.us (David Phillip Oster)
Newsgroups: comp.sys.mac.programmer
Subject: Re: ANSI library in THINK C 4.0
Message-ID: <16615@well.sf.ca.us>
Date: 11 Mar 90 12:54:09 GMT
References: <90068.135735CXT105@psuvm.psu.edu>
Reply-To: oster@well.UUCP (David Phillip Oster)
Organization: Whole Earth 'Lectronic Link, Sausalito, CA
Lines: 33

In article <90068.135735CXT105@psuvm.psu.edu> cxt105@psuvm.psu.edu writes:
>Does anyone know how to build a library containing the floating-point sprintf()
>function, so that you don't have to include the entire ANSI library just to
>get that one feature?
Remember that every Mac has SANE built in. Check your SANE Numerics manual
for details, and remember that this is THINK C v4, but here is what I use:

#include <sane.h>
/* StringToFloat - convert a string to a floating point number.
 */
Boolean StringToFloat(s, fp)StringPtr s;float *fp;{
	short	index;
	double 	ff;
	Decimal	d;
	DecForm	df;
	Boolean	prefix;
	
	index = 1;
	Str2Dec(s, &index, &d, &prefix);
	df.style = FIXEDDECIMAL;
	df.digits = d.sig.length;
	fp68k(&df, &d, &ff, FOD2B);
	*fp = ff;
	return index != 1;
}

How script manager compatible is this? Is there a preferred way that 
will format numbers correctly with full script manager compatibility?

(Remember that in some countries, decimal point is spelled ",").
-- 
-- David Phillip Oster - Note new address. Old one has gone Bye Bye.
-- oster@well.sf.ca.us = {backbone}!well!oster