Subject: Re: Rcomplex
From: Prof Brian D Ripley (email@example.com)
Date: Thu 16 Dec 1999 - 01:49:27 EST
On Wed, 15 Dec 1999, Paul Gilbert wrote:
> o `Rcomplex' is preferred to `complex' (a future reserved word
> in C) for R complex objects passed to C.
> I'm a bit confused here. Is "complex" or "Rcomplex" the future reserved
> word in C (I thought "complex" already was, but I'm not a C programmer)
complex is not currently reserved, but it is in the draft stanadrd
revision. (I might see the confusion. It does not say `to be passed to C',
and it means after passing to C.)
> and is this because R storage modes should or should not have names
> corresponding to C reserved words? I presume this means I should use
> something like
> storage.mode(z) <- if (is.R()) "Rcomplex" else "complex"
No! Use complex in interpreted R code and Rcomplex in C.
We will shortly have compatibility headers for the C code that covers this.
Foreign.Rd has not yet been updated to reflect this change, but
the Writing R Extensions manual has.
-- Brian D. Ripley, firstname.lastname@example.org Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/ University of Oxford, Tel: +44 1865 272861 (self) 1 South Parks Road, +44 1865 272860 (secr) Oxford OX1 3TG, UK Fax: +44 1865 272595
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