1 files changed, 81 insertions, 0 deletions
diff --git a/ACE/ace/Min_Max.h b/ACE/ace/Min_Max.h
new file mode 100644
index 00000000000..7bff181088e
--- /dev/null
+++ b/ACE/ace/Min_Max.h
@@ -0,0 +1,81 @@
+// -*- C++ -*-
+
+//=============================================================================
+/**
+ *  @file   Min_Max.h
+ *
+ *  $Id$
+ *
+ * Define an appropriate set of min()/max() functions using templates.
+ *
+ *
+ *  @author Derek Dominish <Derek.Dominish@Australia.Boeing.com>
+ */
+//=============================================================================
+
+#ifndef ACE_MIN_MAX_H
+#define ACE_MIN_MAX_H
+#include /**/ "ace/pre.h"
+
+#include "ace/config-all.h"
+
+# if !defined (ACE_LACKS_PRAGMA_ONCE)
+#   pragma once
+# endif /* ACE_LACKS_PRAGMA_ONCE */
+
+# if !defined (ACE_LACKS_MIN_MAX_TEMPLATES)
+
+ACE_BEGIN_VERSIONED_NAMESPACE_DECL
+
+template <class T>
+inline const T &
+ace_min (const T &t1, const T &t2)
+{
+  return t2 > t1 ? t1 : t2;
+}
+
+template <class T>
+inline const T &
+ace_max (const T &t1, const T &t2)
+{
+  return t1 > t2 ? t1 : t2;
+}
+
+template <class T>
+inline const T &
+ace_min (const T &t1, const T &t2, const T &t3)
+{
+  return ace_min (ace_min (t1, t2), t3);
+}
+
+template <class T>
+inline const T &
+ace_max (const T &t1, const T &t2, const T &t3)
+{
+  return ace_max (ace_max (t1, t2), t3);
+}
+
+template <class T>
+inline const T &
+ace_range (const T &min, const T &max, const T &val)
+{
+  return ace_min (ace_max (min, val), max);
+}
+
+ACE_END_VERSIONED_NAMESPACE_DECL
+
+# else
+// These macros should only be used if a C++ compiler can't grok the
+// inline templates
+#  define ace_min(a,b)      (((b) > (a)) ? (a) : (b))
+#  define ace_max(a,b)      (((a) > (b)) ? (a) : (b))
+#  define ace_range(a,b,c)  (ace_min(ace_max((a), (c)), (b))
+
+# endif /* ACE_LACKS_MIN_MAX_TEMPLATES */
+
+# define ACE_MIN(a,b)     ace_min((a),(b))
+# define ACE_MAX(a,b)     ace_max((a),(b))
+# define ACE_RANGE(a,b,c) ace_range((a),(b),(c))
+
+#include /**/ "ace/post.h"
+#endif  /* ACE_MIN_MAX_H */