From 2a04789470d2de0384753c96e7e278b77a5dc2dc Mon Sep 17 00:00:00 2001
From: Shinichiro Hamaji <shinichiro.hamaji@gmail.com>
Date: Mon, 29 Jun 2015 13:56:41 +0900
Subject: [C++] Use trie to pickfind implicit rules

28.0 secs => 1.8 secs
---
 eval.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'eval.cc')

diff --git a/eval.cc b/eval.cc
index 9d984da..62d799a 100644
--- a/eval.cc
+++ b/eval.cc
@@ -131,7 +131,7 @@ void Evaluator::EvalRule(const RuleAST* ast) {
   }
 
   for (StringPiece output : rule_var.outputs) {
-    auto p = rule_vars_.emplace(output, static_cast<Vars*>(NULL));
+    auto p = rule_vars_.emplace(output, nullptr);
     if (p.second) {
       p.first->second = new Vars;
     }
-- 
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