1 files changed, 93 insertions, 0 deletions
diff --git a/libs/pbd/pbd/stl_functors.h b/libs/pbd/pbd/stl_functors.h
new file mode 100644
index 0000000000..4a96e91a28
--- /dev/null
+++ b/libs/pbd/pbd/stl_functors.h
@@ -0,0 +1,93 @@
+/*
+    Copyright (C) 1998-99 Paul Barton-Davis
+ 
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+    $Id$
+*/
+
+#ifndef __stl_functors_h__
+#define __stl_functors_h__
+
+#include <string>
+
+#ifndef LESS_STRING_P
+struct less<std::string *> {
+    bool operator()(std::string *s1, std::string *s2) const {
+      return *s1 < *s2;
+    }
+};
+#define LESS_STRING_P
+#endif // LESS_STRING_P
+
+#ifndef LESS_CONST_STRING_P
+struct less<const std::string *> {
+    bool operator()(const std::string *s1, const std::string *s2) const {
+	return *s1 < *s2;
+    }
+};
+#define LESS_CONST_STRING_P
+#endif // LESS_CONST_STRING_P
+
+#ifndef LESS_CONST_CHAR_P
+struct less<const char *>
+{
+	bool operator()(const char* s1, const char* s2) const {
+		return strcmp(s1, s2) < 0;
+	}
+};
+#define LESS_CONST_CHAR_P
+#endif // LESS_CONST_CHAR_P
+
+#ifndef LESS_CONST_FLOAT_P
+struct less<const float *>
+{
+	bool operator()(const float *n1, const float *n2) const {
+		return *n1 < *n2;
+	}
+};
+#define LESS_CONST_FLOAT_P
+#endif // LESS_CONST_FLOAT_P
+
+#ifndef EQUAL_TO_CONST_CHAR_P
+struct equal_to<const char *>
+{
+        bool operator()(const char *s1, const char *s2) const {
+		return strcmp (s1, s2) == 0;
+	}
+};
+#define EQUAL_TO_CONST_CHAR_P
+#endif // EQUAL_TO_CONST_CHAR_P
+
+#ifndef EQUAL_TO_STRING_P
+struct equal_to<std::string *>
+{
+        bool operator()(const std::string *s1, const std::string *s2) const {
+		return *s1 == *s2;
+	}
+};
+#define EQUAL_TO_STRING_P
+#endif // EQUAL_TO_STRING_P
+
+#ifndef LESS_CONST_STRING_R
+struct less<const std::string &> {
+    bool operator() (const std::string &s1, const std::string &s2) {
+	    return s1 < s2; 
+    }
+};
+#define LESS_CONST_STRING_R
+#endif // EQUAL_TO_STRING_P
+
+#endif // __stl_functors_h__