Attempt at fixing #1467, not resolved in current namespace error.

R/data.table.R

@@ -2068,7 +2068,8 @@ na.omit.data.table <- function (object, cols = seq_along(object), invert = FALSE
 }
 
 which_ <- function(x, bool = TRUE) {
-    .Call("Cwhichwrapper", x, bool)
+    # fix for #1467, quotes result in "not resolved in current namespace" error
+    .Call(Cwhichwrapper, x, bool)
 }
 
 is.na.data.table <- function (x) {
@@ -2305,7 +2306,8 @@ rbindlist <- function(l, use.names=fill, fill=FALSE, idcol=NULL) {
         if (!is.character(idcol)) stop("idcol must be a logical or character vector of length 1. If logical TRUE the id column will named '.id'.")
         idcol = idcol[1L]
     }
-    ans = .Call("Crbindlist", l, use.names, fill, idcol)
+    # fix for #1467, quotes result in "not resolved in current namespace" error
+    ans = .Call(Crbindlist, l, use.names, fill, idcol)
     if (!length(ans)) return(null.data.table())
     setDT(ans)[]
 }

README.md

@@ -111,6 +111,8 @@
 
   27. `[.data.table` handles column subsets based on conditions that result in `NULL` as list elements correctly, [#1477](https://github.com/Rdatatable/data.table/issues/1477). Thanks @MichaelChirico. Also thanks to @Max from DSR for spotting a bug as a result of this fix. Now fixed.
 
+  28. Providing the first argument to `.Call`, for e.g., `.Call("Crbindlist", ...)` seems to result in *"not resolved in current namespace"* error. A potential fix is to simply remove the quotes like so many other calls in data.table. Potentially fixes [#1467](https://github.com/Rdatatable/data.table/issues/1467). Thanks to @rBatt, @rsaporta and @damienchallet.
+
 #### NOTES
 
   1. Updated error message on invalid joins to reflect the new `on=` syntax, [#1368](https://github.com/Rdatatable/data.table/issues/1368). Thanks @MichaelChirico.