On Wed, Aug 15, 2007 at 10:52:53PM +0200, Segher Boessenkool wrote:
> >>I think this was just terminology confusion here again. Isn't "any
> >>code
> >>that it cannot currently see" the same as "another compilation unit",
> >>and wouldn't the "compilation unit" itself expand if we ask gcc to
> >>compile more than one unit at once? Or is there some more specific
> >>"definition" for "compilation unit" (in gcc lingo, possibly?)
> >
> >This is indeed my understanding -- "compilation unit" is whatever the
> >compiler looks at in one go. I have heard the word "module" used for
> >the minimal compilation unit covering a single .c file and everything
> >that it #includes, but there might be a better name for this.
>
> Yes, that's what's called "compilation unit" :-)
>
> [/me double checks]
>
> Erm, the C standard actually calls it "translation unit".
>
> To be exact, to avoid any more confusion:
>
> 5.1.1.1/1:
> A C program need not all be translated at the same time. The
> text of the program is kept in units called source files, (or
> preprocessing files) in this International Standard. A source
> file together with all the headers and source files included
> via the preprocessing directive #include is known as a
> preprocessing translation unit. After preprocessing, a
> preprocessing translation unit is called a translation unit.
I am OK with "translation" and "compilation" being near-synonyms. ;-)
Thanx, Paul
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