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-rw-r--r--src/tr1_hash_map.h19
1 files changed, 19 insertions, 0 deletions
diff --git a/src/tr1_hash_map.h b/src/tr1_hash_map.h
new file mode 100644
index 0000000..3f31576
--- /dev/null
+++ b/src/tr1_hash_map.h
@@ -0,0 +1,19 @@
+#pragma once
+
+// detection and fallback for unordered_map in C++0x
+#ifdef __cplusplus
+ #ifdef __GNUC__
+ #if __GNUC__ >= 4 && __GNUC_MINOR__ >= 3
+ #include <unordered_map>
+ #define tr1_hash_map std::unordered_map
+ #else
+ #include <map>
+ #define tr1_hash_map std::map
+ #endif
+ #else
+ #include <map>
+ #define tr1_hash_map std::map
+ #endif
+#endif
+
+