[Rd] formatC(<zero-length>) doesn't keep attributes

Suharto Anggono Suharto Anggono @uh@rto_@nggono @end|ng |rom y@hoo@com
Sat Oct 9 04:40:10 CEST 2021

By r80949, 'formatC' code in R devel has
    if (!(n <- length(x))) return(character())

If 'x' has length zero, the return value of 'formatC' doesn't have attributes. It doesn't follow the documented "Value": "A character object of the same size and attributes as x".

Based on my observation, the early return could be removed.
    n <- length(x)

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