[Rcpp-devel] Traits for NA?

[Kirill Müller]

Hi

What is the best way to determine the NA value for a specific type given 
the type identifier (as returned by TYPEOF()), preferably as a 
compile-time constant?

I'm looking for something along the following lines:

static_assert(NA_traits<REALSXP>::value == NA_REAL);
static_assert(NA_traits<LGLSXP>::value == NA_LOGICAL);

Thanks.


Cheers

Kirill
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