Re: Why does this work? (rot13 function)

From: Larry Doolittle (ldoolitt_at_recycle.lbl.gov)
Date: 12/16/03 

Date: Tue, 16 Dec 2003 20:56:54 +0000 (UTC)

Arthur J. O'Dwyer wrote:
> <OT> Using gcc, it's easy:
> % gcc -W -Wall -ansi -pedantic -O2 mainfile.c rot13.c
> (and any other source files in the project). All the options
> are only there to catch mistakes in your code; if you write
> perfect code, you don't need them. ;-) [In other words, you
> *do* need them. Always.]
></OT>

My biggest complaint about gcc -W -Wall is that it barks at unused
parameters. If someone tells me how to make

int foo(void);
int bar(char*cd)
{
        foo();
        return 0;
}

standards-conforming, non-bloated, and run past "gcc -W -Wall -ansi -std=c99"
without warnings, I'd like to hear about it. My default set of
flags to gcc now also includes
   -Wpointer-arith -Wcast-qual -Wshadow

   - Larry

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