From 8f30e44234884d88f4df56c34afc0305b1a8c3aa Mon Sep 17 00:00:00 2001
From: cxgeorge <>
Date: Wed, 31 Oct 2001 00:36:51 +0000
Subject: [PATCH] fix trim_blanks bug

---
 dtool/src/cppparser/cppPreprocessor.cxx | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/dtool/src/cppparser/cppPreprocessor.cxx b/dtool/src/cppparser/cppPreprocessor.cxx
index 6b4c8addab..847eec4b60 100644
--- a/dtool/src/cppparser/cppPreprocessor.cxx
+++ b/dtool/src/cppparser/cppPreprocessor.cxx
@@ -63,6 +63,9 @@ static string
 trim_blanks(const string &str) {
   size_t first, last;
 
+  if(str.empty())
+      return str;
+
   first = 0;
   while (first < str.length() && isspace(str[first])) {
     first++;