I have some codes in Rcpp, they work well when compiling but Rstudio keeps giving diagnostics for some parts, which is a little bit annoying. I really appreciate it if anyone can help.
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static PLINK::PlinkClass* ptr_gPLINKobj = NULL;
: use of undeclared identifier 'NULL' -
uint64_t t_gIndex
: unknown type name 'uint64_t'