patch 7.4.1119

Problem:    argidx() has a wrong value after ":%argdelete". (Yegappan
            Lakshmanan)
Solution:   Correct the value of w_arg_idx.  Add a test.

Author: brammool

src/ex_cmds2.c

@@ -2562,6 +2562,10 @@ ex_argdelete(eap)
 		curwin->w_arg_idx -= n;
 	    else if (curwin->w_arg_idx > eap->line1)
 		curwin->w_arg_idx = eap->line1;
+	    if (ARGCOUNT == 0)
+		curwin->w_arg_idx = 0;
+	    else if (curwin->w_arg_idx >= ARGCOUNT)
+		curwin->w_arg_idx = ARGCOUNT - 1;
 	}
     }
     else if (*eap->arg == NUL)

src/testdir/Make_all.mak

@@ -171,7 +171,8 @@ SCRIPTS_GUI = test16.out
 
 # Tests using runtest.vim.vim.
 # Keep test_alot.res as the last one, sort the others.
-NEW_TESTS = test_assert.res \
+NEW_TESTS = test_arglist.res \
+	    test_assert.res \
 	    test_cdo.res \
 	    test_hardcopy.res \
 	    test_increment.res \

src/testdir/test_arglist.vim

@@ -0,0 +1,22 @@
+" Test argument list commands
+
+func Test_argidx()
+  args a b c
+  last
+  call assert_equal(2, argidx())
+  %argdelete
+  call assert_equal(0, argidx())
+
+  args a b c
+  call assert_equal(0, argidx())
+  next
+  call assert_equal(1, argidx())
+  next
+  call assert_equal(2, argidx())
+  1argdelete
+  call assert_equal(1, argidx())
+  1argdelete
+  call assert_equal(0, argidx())
+  1argdelete
+  call assert_equal(0, argidx())
+endfunc

src/version.c

@@ -741,6 +741,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1119,
 /**/
     1118,
 /**/