Re: [Sdcc-user] BUG: Variables named 'data' can be created, but not initialized

[Erik P. <epe...@iv...>]

On Wed, 6 Aug 2003, Tyler Montbriand wrote:

> On Wednesday 06 August 2003 06:27 pm, Jesus Calvino-Fraga wrote:
> > This is not a bug since 'data' as well as 'code', 'xdata', 'idata', and
> > 'bit' are reserved words in SDCC used to define a storage class.  See
> > section 3.4 of the SDCC manual at:
> >
> > http://sdcc.sourceforge.net/doc/sdccman.html/node23.html
> >
> > Jesus
> Interesting...  I knew about those but I'd assumed it would be _data and such 
> like on some other compilers I've seen...  but doesn't that mean that 
> allowing a variable called 'data' in the first place is incorrect?  Perhaps 
> the error message could be made clearer, at least.

I added a new warning message to SDCC. Now your sample program:

int main(int argc, char *argv[])
{
  char data;
  data=0;
  return(0);
}

generates the warnings and errors:

bugtest0001.c:4: warning: useless declaration (possible use of keyword as
variable name)

bugtest0001.c:5: parse error: token -> '=' ; column 7
-:0: error: code not generated for 'main' due to previous errors
-:0: warning: in function main unreferenced function argument : 'argc'
-:0: warning: in function main unreferenced function argument : 'argv'


This change should make it into the snapshot in the next day or two.

   Erik Petrich