Path: utzoo!news-server.csri.toronto.edu!cs.utexas.edu!swrinde!zaphod.mps.ohio-state.edu!magnus.ircc.ohio-state.edu!tut.cis.ohio-state.edu!ucbvax!UCONNVM.BITNET!STEIN
From: STEIN@UCONNVM.BITNET (Alan Stein)
Newsgroups: comp.sys.apple2
Subject: Orca/C Bug?
Message-ID: <9103081247.AA24460@apple.com>
Date: 8 Mar 91 12:41:01 GMT
Sender: daemon@ucbvax.BERKELEY.EDU
Organization: The Internet
Lines: 46

I've been having problems with functions returning values.  For example,
the following bombed:

float f(x)
float x;
{
return (x*x);
}
void main ()
{
float y;
...
y = f(x);
...
}

while, changing just those lines to the following works fine:

void f (x,py)
float x,*py;
{
y = x*x;
}

void main ()
{
float x,y;
...
f(x,&y);
...
}

The former seemed to work fine until I added a printer routine to my
program.  This kind of thing has happened several times, both with
functions I've defined myself, as above, and with some functions from
the Orca/C library, including some of the string functions (p2cstr,c2pstr,
atof,strcpy,strcat) and trig functions (sin).

 __________________________________________________________
|                                                          |
| Alan H. Stein              | stein@uconnvm.bitnet        |
| Department of Mathematics  |                             |
| University of Connecticut  | Compu$erve  71545,1500      |
| 32 Hillside Avenue         | GEnie       ah.stein        |
| Waterbury, CT 06710        | SNET        (203) 757-1231  |
|__________________________________________________________|