vim-patch:7.4.578

Problem:    Using getcurpos() after "$" in an empty line returns a negative
            number.
Solution:   Don't add one when this would overflow. (Hirohito Higashi)

https://code.google.com/p/vim/source/detail?r=v7-4-578

src/nvim/eval.c

@@ -9479,7 +9479,9 @@ static void getpos_both(typval_T *argvars, typval_T *rettv, bool getcurpos)
   list_append_number(l,
                      (fp != NULL) ? (varnumber_T)fp->coladd : (varnumber_T)0);
   if (getcurpos) {
-    list_append_number(l, (varnumber_T) curwin->w_curswant + 1);
+    list_append_number(l, curwin->w_curswant == MAXCOL
+                              ? (varnumber_T)MAXCOL
+                              : (varnumber_T)curwin->w_curswant + 1);
   }
 }
 

src/nvim/version.c

@@ -206,7 +206,7 @@ static int included_patches[] = {
   //581,
   //580,
   //579,
-  //578,
+  578,
   //577,
   //576,
   //575,