From 47f8eb171ccc47ae0bda8705beb0bb59ccc1a8b3 Mon Sep 17 00:00:00 2001
From: hvellyr <gck@eyestep.org>
Date: Mon, 6 Jun 2016 12:35:08 +0200
Subject: [PATCH] Fix compiler warnings about incomplete override functions

The warning on VS2013 was:

warning C4266: 'void peg::Ope::Visitor::visit(peg::Whitespace &)' : no
  override available for virtual member function from base
  'peg::Ope::Visitor'; function is hidden

I'm surprised that this warning doesn't happen on gcc/clang though.
---
 peglib.h | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/peglib.h b/peglib.h
index 056323f..d7f239c 100644
--- a/peglib.h
+++ b/peglib.h
@@ -1104,6 +1104,8 @@ struct Ope::Visitor
 
 struct AssignIDToDefinition : public Ope::Visitor
 {
+    using Ope::Visitor::visit;
+
     void visit(Sequence& ope) override {
         for (auto op: ope.opes_) {
             op->accept(*this);
@@ -1133,6 +1135,8 @@ struct IsToken : public Ope::Visitor
 {
     IsToken() : has_token_boundary(false), has_rule(false) {}
 
+    using Ope::Visitor::visit;
+
     void visit(Sequence& ope) override {
         for (auto op: ope.opes_) {
             op->accept(*this);
@@ -1661,6 +1665,8 @@ private:
         DetectLeftRecursion(const std::string& name)
             : s_(nullptr), name_(name), done_(false) {}
 
+        using Ope::Visitor::visit;
+
         void visit(Sequence& ope) override {
             for (auto op: ope.opes_) {
                 op->accept(*this);