commit d4e8193c6bf264d32332a82d6ec0188c9bdac14f
author Shinichiro Hamaji <shinichiro.hamaji@gmail.com> Wed Jun 17 04:40:45 2015 +0900
committer Shinichiro Hamaji <shinichiro.hamaji@gmail.com> Thu Jun 18 11:25:43 2015 +0900
tree 5aa49b3c2c4d3fcfacbaa50f3f92c2ccb14d6ffc
parent 14b8bea45a560e1bb61e5e4d0f1fbb50a988224e

[C++] Add a fast path for comment-only-lines

parser.cc

diff --git a/parser.cc b/parser.cc
index 7c60673..eaec6fb 100644
--- a/parser.cc
+++ b/parser.cc
@@ -100,6 +100,10 @@
     }
 
     line = line.StripLeftSpaces();
+
+    if (line[0] == '#')
+      return;
+
     if (HandleDirective(line)) {
       return;
     }