Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!uunet!ncrlnk!ciss!dgrimmer
From: dgrimmer@ciss.Dayton.NCR.COM (Dave.Grimmer@Dayton.NCR.COM)
Newsgroups: comp.lang.c
Subject: Turbo C and Clipper
Message-ID: <1650@ciss.Dayton.NCR.COM>
Date: 6 Dec 90 21:06:40 GMT
Organization: NCR Corp. Information Systems & Services
Lines: 18


I am looking for a way to do some trig functions (cos, sin, tan, ...)
from within a CLIPPER application.  The version I am using is Summer 87.

Are there any Clipper libraries around that have the trig functions?

I have tried writing the function with Turbo C 2.0, but I get 3 unresolved
external references when I link (this works with integer functions, but
I think there is a problem when you use a double data type).  Has anyone
written a C function for CLIPPER that uses a double data type?

The use of the trig functions is very important to the project that I am
working on.  Does anyone have any suggestions as to how I can do this?

Thanks in advance!
-- 
Dave Grimmer  NCR Corporate Information Resource Planning (PCD 6)
Dave.Grimmer@Dayton.NCR.COM