Date: Sat, 21 Dec 2002 15:24:50 -0000 From: "Dave Hart" <davehart@davehart.com> To: <freebsd-stable@FreeBSD.ORG> Cc: <ranjit@rugragging.com>, <coolvibe@hackerheaven.org> Subject: RE: More information (was Re: pthread woes) Message-ID: <C1398952884B984C8AB1519CEAC66F942F2BC6@olympic.ad.hartbrothers.com>
next in thread | raw e-mail | index | archive | help
> From: ranjit@rugragging.com [mailto:ranjit@rugragging.com]
>
> Hello Emiel,
>
> I tried and it failed, I think there's a syntax error in the
> first line. When I
> change it to:
>
> char XOpenDisplay() {};
>
> it works fine:
Yes, but it's probably not what you want. You now have a program which
is calling its own empty function called XOpenDisplay(). You probably
want to call the XOpenDisplay from an X library instead:
char XOpenDisplay();
That is a function declaration or prototype, your code above is a
function _definition_, the key difference being yours has a body {}
following the parameters ().
> > --- test.c ---
> >
> > char XOpenDisplay{};
> >
> > int main() {
> > XOpenDisplay();
> > return 0;
> > }
> > --- end test.c ---
The typo in the original code was using curly braces {} where parens
were needed in char XOpenDisplay();
Or, for god's sake, the _error_ was trying to shortcut by duplicating a
function declaration from some X header file when the Right Thing To Do
is always to #include the appropriate .h header file containing the real
declaration for XOpenDisplay(). It certainly would have saved needless
hot air and wasted time on this thread.
Dave
To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-stable" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?C1398952884B984C8AB1519CEAC66F942F2BC6>