1 files changed, 12 insertions, 0 deletions
diff --git a/docs/ClangFormat.rst b/docs/ClangFormat.rst
index ed0e58e452d3..902afcd08ed5 100644
--- a/docs/ClangFormat.rst
+++ b/docs/ClangFormat.rst
@@ -120,6 +120,18 @@ entity.
 It operates on the current, potentially unsaved buffer and does not create
 or save any files. To revert a formatting, just undo.
 
+An alternative option is to format changes when saving a file and thus to
+have a zero-effort integration into the coding workflow. To do this, add this to
+your `.vimrc`:
+
+.. code-block:: vim
+
+  function! Formatonsave()
+    let l:formatdiff = 1
+    pyf ~/llvm/tools/clang/tools/clang-format/clang-format.py
+  endfunction
+  autocmd BufWritePre *.h,*.cc,*.cpp call Formatonsave()
+
 
 Emacs Integration
 =================