On Tue, 28 May 2002, Prof Brian D Ripley wrote:
On Tue, 28 May 2002 NEFTH@pacbell.net wrote:
This only happens on platforms with a faulty implementation of realloc(). Some C libraries do not allow realloc() to be called with a NULL pointer to resize.
What other platforms give the problem? The behaviour R assumes is required by the ISO C89 standard (at least according to Lewine's book). Would it not be better to fix realloc rather than R: there are many alternative implementations of malloc out there (and R uses one for Windows). One issue is that realloc is used in several R packages on CRAN, and quite possibly in others. These are likely to assume standard-conformant behaviour. (It is used in other places within the R sources too, but I assume you checked all of those.)
There are several other uses of realloc in the R sources with the same assumption ....
Brian D. Ripley, ripley@stats.ox.ac.uk 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 -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-devel mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the "body", not the subject !) To: r-devel-request@stat.math.ethz.ch _._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._