make static inline, add codecov

Author: jangorecki

inst/tests/froll.Rraw

@@ -1429,6 +1429,10 @@ test(6010.610, frollapply(numeric(), 3, identity), list())
 test(6010.611, frollapply(list(numeric(), numeric()), 3, identity), list(NULL,NULL))
 test(6010.612, frollapply(list(numeric(), 1:3), 3, identity), list(NULL, list(NA,NA,1:3)))
 
+## codecov memcpy calls #7304
+x = data.table(v1=1:2, v2=c(1,2), v3=c("a","b"), v4=list(1,2), v5=as.complex(1:2), v6=as.raw(1:2))
+test(6010.619, frollapply(x, 1, ncol, by.column=FALSE), c(6L,6L))
+
 #### list input in frollapply
 DT = as.data.table(iris)
 test(6010.620, ## list()/.() same as data.frame()

src/frollapply.c

@@ -1,6 +1,6 @@
 #include "data.table.h"
 
-void MEMCPY_SEXP(SEXP dest, size_t offset, SEXP src, int count)
+static inline void MEMCPY_SEXP(SEXP dest, size_t offset, SEXP src, int count)
 {
   switch (TYPEOF(dest)) {
   case INTSXP: {