isGeneric() can return an error

Bug. Should be fixed (rev 58642) in r-devel and R 2.15.0 alpha.

Thanks.

On 3/7/12 3:30 PM, Herv? Pag?s wrote:

Hi,

I wonder if this is a feature or a bug:

isGeneric("&&")

Error in genericForPrimitive(f) :
methods may not be defined for primitive function ?&&? in this version
of R

isGeneric(":")

Error in genericForPrimitive(f) :
methods may not be defined for primitive function ?:? in this version
of R

According to the man page:

?isGeneric?: Is there a function named ?f?, and if so, is it a
generic?

So it sounds like it should be a YES or NO answer.

In any case the error message is confusing: it suggests that I'm trying
to define methods for "&&", but I'm not.

This is with R 2.13, R 2.14 and R 2.15.0 alpha.

Thanks,
H.