Re: A lesson for compiler warning writers

arnold@cc.gatech.edu (Arnold Robbins) writes:


| No C compiler in the world will do cross file checking for you, only lint
| does it.


Blatently untrue - Saber C (admittedly, an interpreter) does this, and
I've seen demonstrations of cross-file checking in CASE environments on
UNIX.


> file a.c:
>
> double foo(long a) { return a * 2.0 ; }
>
> file b.c
>
> extern short foo(double a);


Intel's C-386 for OMF386, a product that's at least 4 years old, will
catch this at link time.


I'm sure other compilers/compilation systems that meet your challenge will
surface. Most UNIX compilers won't, of course, which may have been what
you meant.


--
Kirk Hays
--

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