Allow memory sizes to be negative, eliminate TmpRSS

[oota-llvm.git] / include / Support / hash_map

diff --git a/include/Support/hash_map b/include/Support/hash_map
index aefcc289e2ed0210185ec0c746978e24b6d7d5ae..b52474735fe4e74a23c033406e89f324be946f49 100644 (file)
--- a/include/Support/hash_map
+++ b/include/Support/hash_map
@@ -1,6 +1,42 @@
+//===-- Support/hash_map - "Portable" wrapper around hash_map ---*- C++ -*-===//
+//
+// This file provides a wrapper around the mysterious <hash_map> header file
+// that seems to move around between GCC releases into and out of namespaces at
+// will.  #including this header will cause hash_map to be available in the
+// global namespace.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef SUPPORT_HASHMAP_H
+#define SUPPORT_HASHMAP_H
+
+// Compiler Support Matrix
+//
+// Version   Namespace   Header File
+//  2.95.x       ::        hash_map
+//  3.0.4       std      ext/hash_map
+//  3.1      __gnu_cxx   ext/hash_map
+//
 #if __GNUC__ == 3
 #include <ext/hash_map>
-using __gnu_cxx::hash_map;
+
+#ifndef HASH_NAMESPACE
+#if __GNUC_MINOR__ == 0
+#define HASH_NAMESPACE std
 #else
+#define HASH_NAMESPACE __gnu_cxx
+#endif
+#endif
+
+#else
+
 #include <hash_map>
+#ifndef HASH_NAMESPACE
+#define HASH_NAMESPACE std
+#endif
+#endif
+
+using HASH_NAMESPACE::hash_map;
+using HASH_NAMESPACE::hash;
+
 #endif