commit c71807db9c1821baf86796cd76952df36ff1a29a
author Bram Moolenaar <Bram@vim.org> Sat Mar 03 15:06:52 2018 +0100
committer Bram Moolenaar <Bram@vim.org> Sat Mar 03 15:06:52 2018 +0100
tree da3e80c8b182e69e254044783949078388676161
parent 590ec878a52b3b3d4453475f1eb4899f2b37969f

patch 8.0.1557: printf() does not work with only one argument

Problem:    printf() does not work with only one argument. (Daniel Hahler)
Solution:   Allow using just the format. (Ken Takata, closes #2687)

src/testdir/test_expr.vim

diff --git a/src/testdir/test_expr.vim b/src/testdir/test_expr.vim
index c47bc22..c14b6e6 100644
--- a/src/testdir/test_expr.vim
+++ b/src/testdir/test_expr.vim
@@ -131,6 +131,9 @@
 endfunc
 
 function Test_printf_misc()
+  call assert_equal('123', printf('123'))
+  call assert_fails("call printf('123', 3)", "E767:")
+
   call assert_equal('123', printf('%d', 123))
   call assert_equal('123', printf('%i', 123))
   call assert_equal('123', printf('%D', 123))