Re: So what Standard are we working off?

Keith Thompson wrote:
Ben Pfaff <blp@xxxxxxxxxxxxxxx> writes:
"Peter Nilsson" <airia@xxxxxxxxxxx> writes:
It already has. Note that most regulars in clc actually quote
c&v from the C99 standard because their copies of the C90
standard have long since gone and for the most part, the
semantics are unchanged.
The reason that I quote mainly from C99 is because the final
standard is available as a nicely generated PDF (which I have
converted to plain text format). The older standard was only
available in draft form in an easy-to-cut-and-paste format
(although a PDF was available, it was, as I understand it, a
scanned version of the dead trees).

I can't speak for the other regulars, of course.

I have a PDF copy of the final C90 standard, and yes, it appears to be
scanned from dead trees, and it has no PDF bookmarks. I can
copy-and-paste from it, but the result looks like this:

4 Compliance

A srr-icr!\ corlfornri~~ PWJXI?U~~ shall use only those features
of the language and library specified in this International
Standard It shall not produce output dependent on any unspecitied.
undefined. or implementation-detined behavior. and shall not
exceed any minimum implementation limit

Actually it's not usually that bad (there seems to be a problem with
italics), but I do get a lot of errors involving characters that look
similar (',' vs. ',', 't' vs 'f', etc.). I usually clean things up
when I post them here. (Actually, I usually copy-and-paste from n1124
instead.)

Is there a case where a correct C90 program cannot be successfully compiled by a C99 compiler? Actually this is not a compiler question but a language one. Is there anything in C90 that C99 must reject or handle differently?

--
Joe Wright
"Everything should be made as simple as possible, but not simpler."
--- Albert Einstein ---
.

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