Merge branch 'master' into froll-fix-memleak

Author: jangorecki

inst/tests/froll.Rraw

@@ -1690,6 +1690,12 @@ 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))
+old = setDTthreads(1L) ## ensure no parallel::mccollect so codecov can pick up
+test(6010.619, frollapply(x, 1, ncol, by.column=FALSE), c(6L,6L))
+setDTthreads(old)
+
 #### list input in frollapply
 DT = as.data.table(iris)
 test(6010.620, ## list()/.() same as data.frame()

src/fread.c

@@ -418,6 +418,7 @@ double wallclock(void)
  *     2.206MiB (2313045 bytes)
  *     38.69KiB (39615 bytes)
  *     214 bytes
+ *     1 byte
  *     0 bytes
  * The function returns a pointer to a static string buffer, so the caller
  * should not attempt to deallocate the buffer, or call this function from