With R-2.12.2 on Linux:
> z <- data.frame(Version=package_version(c("0.1")),
row.names=c("pkgA"))
> all.equal(z, z) # expect TRUE
Error: evaluation nested too deeply: infinite recursion /
options(expressions=)?
> traceback()
... lots of lines in a 3-cycle ...
6: all.equal.list(target, current, ...)
5: all.equal.default(target[[i]], current[[i]], check.attributes =
check.attributes,
...)
4: all.equal(target[[i]], current[[i]], check.attributes =
check.attributes,
...)
3: all.equal.list(target, current, ...)
2: all.equal.default(z, z)
1: all.equal(z, z)
This is probably because the [[ method for package_version
([[.numeric_version)
acts like a typical [ method, not a [[ method, so all.equal's call to [[
does
not burrow into the list:
> is.list(z$Version)
[1] TRUE
> identical(z$Version[[1]], z$Version)
[1] TRUE
Bill Dunlap
Spotfire, TIBCO Software
wdunlap tibco.com
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