as.integer64.integer64() is inconsistent to as.integer.integer() #188
Description
When calling as.integer() of an integer with diverse attributes, the result is a plain integer vector.
i32 <- structure(as.integer(c("1", "2", "3", "4")), names="a", dim=c(2, 2), dimnames=list(c("r1", "r2"), c("c1", "c2")), other=1:2)
as.integer(i32)
# [1] 1 2 3 4
When calling as.integer64() the object is just returned.
i64 <- structure(as.integer64(c("1", "2", "3", "4")), names="a", dim=c(2, 2), dimnames=list(c("r1", "r2"), c("c1", "c2")), other=1:2)
as.integer64(i64)
# integer64
# c1 c2
# r1 1 3
# r2 2 4
# attr(,"names")
# [1] a <NA> <NA> <NA>
# attr(,"other")
# [1] 1 2