Rework hashing, use a more extensible framework similar to n3876 proposal

std::hash specialization is a pain to work with, stop using that, and
just specialize a 'size_t hash_value(const T&)' free function.

1 files changed, 17 insertions, 0 deletions

diff --git a/src/unordered_map.hh b/src/unordered_map.hh
new file mode 100644
index 00000000..a3074ad6
--- /dev/null
+++ b/src/unordered_map.hh
@@ -0,0 +1,17 @@
+#ifndef unordered_map_hh_INCLUDED
+#define unordered_map_hh_INCLUDED
+
+#include "hash.hh"
+
+#include <unordered_map>
+
+namespace Kakoune
+{
+
+template<typename Key, typename Value>
+using UnorderedMap = std::unordered_map<Key, Value, Hash<Key>>;
+
+}
+
+#endif // unordered_map_hh_INCLUDED
+