merge master

Author: ben-schwen

NEWS.md

@@ -173,7 +173,7 @@ rowwiseDT(
 
 20. Fixed a memory issue causing segfaults in `forder`, [#6797](https://github.com/Rdatatable/data.table/issues/6797). Thanks @dkutner for the report and @MichaelChirico for the fix.
 
-10. `set()` now automatically pre-allocates new column slots if needed, similar to what `:=` already does, [#496](https://github.com/Rdatatable/data.table/issues/496) [#4100](https://github.com/Rdatatable/data.table/issues/4100). Thanks to Huashan Chen and @tyner for the report and Benjamin Schwendinger for the fix.
+20. `set()` now automatically pre-allocates new column slots if needed, similar to what `:=` already does, [#496](https://github.com/Rdatatable/data.table/issues/496) [#4100](https://github.com/Rdatatable/data.table/issues/4100). Thanks to Huashan Chen and @tyner for the report and Benjamin Schwendinger for the fix.
 
 ## NOTES
 

R/data.table.R

@@ -2761,7 +2761,7 @@ setcolorder = function(x, neworder=key(x), before=NULL, after=NULL, skip_absent=
   invisible(x)
 }
 
-set = function(x, i = NULL, j, value) {
+set = function(x, i=NULL, j, value) {
   name = as.character(substitute(x))
   old_add = address(x)
   x = .Call(Cassign, x, i, j, NULL, value)