[R] identical calls are not equal !?
Peter Dalgaard BSA
p.dalgaard at biostat.ku.dk
Wed Jun 12 17:12:43 CEST 2002
Peter Dalgaard BSA <p.dalgaard at biostat.ku.dk> writes:
> Shorter version:
> b <- quote(f())
> a <- b
> It's a bug. The intention of the code in do_relop_dflt is that calls are
> equal if they deparse to the same string.
> However, this is plain wrong:
> 67 SET_STRING_ELT(tmp, 0, (iS) ? PRINTNAME(x) : deparse1(x, 0));
> 68 REPROTECT(x = tmp, xpi);
> since deparse1(x, 0) is a SEXP and not a string.
Not quite. It's supposed to be a SEXP, but a CHARSXP and not a STRSXP.
The fix is simple enough to be committed for 1.5.1, I think.
O__ ---- Peter Dalgaard Blegdamsvej 3
c/ /'_ --- Dept. of Biostatistics 2200 Cph. N
(*) \(*) -- University of Copenhagen Denmark Ph: (+45) 35327918
~~~~~~~~~~ - (p.dalgaard at biostat.ku.dk) FAX: (+45) 35327907
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