1 files changed, 41 insertions, 0 deletions
diff --git a/src/boost/tools/bcp/path_operations.cpp b/src/boost/tools/bcp/path_operations.cpp
new file mode 100644
index 000000000..aebbc4e6f
--- /dev/null
+++ b/src/boost/tools/bcp/path_operations.cpp
@@ -0,0 +1,41 @@
+/*
+ *
+ * Copyright (c) 2003 Dr John Maddock
+ * Use, modification and distribution is subject to the 
+ * Boost Software License, Version 1.0. (See accompanying file 
+ * LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+ *
+ * This file implements path comparisons
+ */
+
+
+#include "bcp_imp.hpp"
+#include <cctype>
+
+#ifdef BOOST_NO_STDC_NAMESPACE
+namespace std{
+   using ::tolower;
+}
+#endif
+
+
+int compare_paths(const fs::path& a, const fs::path& b)
+{
+   const std::string& as = a.generic_string();
+   const std::string& bs = b.generic_string();
+   std::string::const_iterator i, j, k, l;
+   i = as.begin();
+   j = as.end();
+   k = bs.begin();
+   l = bs.end();
+   while(i != j)
+   {
+      if(k == l)
+         return -1;
+      int r = std::tolower(*i) - std::tolower(*k);
+      if(r) return r;
+      ++i;
+      ++k;
+   }
+   return (k == l) ? 0 : 1;
+}