Displaying 1 result from an estimated 1 matches for "altrep_string_is_sorted".
2018 Nov 15
2
STRING_IS_SORTED claims as.character(1:100) is sorted
If I have loaded the C code:
SEXP altrep_STRING_IS_SORTED(SEXP x)
{
return ScalarInteger(STRING_IS_SORTED(x));
}
and defined the function:
issort <- function(x) .Call("altrep_STRING_IS_SORTED",x)
I am seeing the following results in R 3.5.1/Linux:
> issort(LETTERS)
[1] NA
> issort(as.character(1:100)) #...