Re: Evaluating arithmetic expressions with macros (eval)
Peter Hull <[email protected]> Thu, 12 Oct 2023 15:04:25 +0100
| Newsgroups | gmane.comp.sysutils.autoconf.general |
|---|---|
| Message-ID | <CAK9Gx1f9SvL8iiNOL23itMMp4Mp-=tuhN4r_XCf2Pg9k64OP=Q@mail.gmail.com> |
On Thu, 12 Oct 2023 at 14:41, Sébastien Hinderer <[email protected]> wrote: > Aht alone was useful. It made me realise that I was using eval, rather > than m4_eval. I assume this is why it didn't work as expected. > > However, eval *is* documented in section 12.2 Evaluating integer > expressions of the m4 info manual. The 'm4_' prefix is related to the `-P` option I believe, see https://www.gnu.org/software/m4/manual/html_node/Operation-modes.html#Operation-modes Peter