[SDL] Re: SDL digest, Vol 1 #456 - 27 msgs

Paulo Pinto pjmlp at progtools.org
Thu Jul 25 03:37:00 PDT 2002


> -----Original Message-----
> From: sdl-admin at libsdl.org [mailto:sdl-admin at libsdl.org]On 
> Behalf Of Gib
> Bogle
> Sent: quarta-feira, 24 de Julho de 2002 22:51
> To: sdl at libsdl.org
> Subject: [SDL] Re: SDL digest, Vol 1 #456 - 27 msgs
> 
> 
> > Message: 20
> > Date: Wed, 24 Jul 2002 03:38:13 -0700 (PDT)
> > From: Brian Raiter <breadbox at muppetlabs.com>
> > To: sdl at libsdl.org
> > Subject: Re: [SDL] Shared library, SDL etc. not the issue
> > Reply-To: sdl at libsdl.org
> > 
> > > I have located the cause of my odd problem, but I don't understand
> > > it.  I have a function in the main program file (not called in the
> > > testing version) named shutdown().  If I rename it, e.g. to
> > > Shutdown(), the problem goes away.  I know that shutdown 
> is a system
> > > command, but it hadn't occurred to me that I couldn't use the name
> > > in my code.
> > 
> > shutdown() is also the name of a semi-standard socket function; see
> > <sys/socket.h>.
> 
> Aha!  This is a trap for young players - the symptoms were 
> bizarre, and
> it was a bit flukey that I found the cause.  I am rather 
> surprised that
> the compiler didn't tell me anything about this.  Do I need to be
> familiar with all the functions in /usr/include, or is there 
> another way
> to check for name clashes?  I'm not using any socket stuff, but I
> presume it is in the SDL library.
> 
> Gib


 
Well, you do have to live with it. That's a problem related to
the way compilers/linkers work for the C/C++ languages.

If you use a function that is also available in the libraries the
linker might not like it. Always make your non public functions, static.

--
Paulo Pinto




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