as.integer64 is inconsistent in handling out-of-range string inputs #175
Description
as.integer64(c('9223372036854775809', '-9223372036854775809'))
# integer64
# [1] 9223372036854775807 <NA>IINM, what's happening is that strtoll(), when encountering an out-of-range input, returns the end-of-range values, but for negative numbers, that's masked by NA_integer64_.
Here's how as.integer() behaves for reference:
as.integer(c('-2147483648', '-2147483647', '2147483647', '2147483648'))
# [1] NA -2147483647 2147483647 NA
# Warning message:
# NAs introduced by coercion to integer rangeI don't see this behavior described/explained in ?as.integer64.character.