Specialize std::hash for ptid_t
This changes hash_ptid to instead be a specialization of std::hash.
This makes it a little easier to use with standard containers.
Approved-By: Simon Marchi <simon.marchi@efficios.com>
diff --git a/gdb/inferior.h b/gdb/inferior.h
index 0467258..29c90d1 100644
--- a/gdb/inferior.h
+++ b/gdb/inferior.h
@@ -462,7 +462,7 @@ class inferior : public refcounted_object,
/* A map of ptid_t to thread_info*, for average O(1) ptid_t lookup.
Exited threads do not appear in the map. */
- std::unordered_map<ptid_t, thread_info *, hash_ptid> ptid_thread_map;
+ std::unordered_map<ptid_t, thread_info *> ptid_thread_map;
/* Returns a range adapter covering the inferior's threads,
including exited threads. Used like this:
diff --git a/gdb/regcache.c b/gdb/regcache.c
index 9b71931..91b20b7 100644
--- a/gdb/regcache.c
+++ b/gdb/regcache.c
@@ -329,7 +329,7 @@ reg_buffer::assert_regnum (int regnum) const
regcaches, associated to different gdbarches). */
using ptid_regcache_map
- = std::unordered_multimap<ptid_t, regcache_up, hash_ptid>;
+ = std::unordered_multimap<ptid_t, regcache_up>;
/* Type holding regcaches for a given pid. */
diff --git a/gdbsupport/ptid.h b/gdbsupport/ptid.h
index aa296b8..f8644d4 100644
--- a/gdbsupport/ptid.h
+++ b/gdbsupport/ptid.h
@@ -157,9 +157,8 @@ class ptid_t
tid_type m_tid;
};
-/* Functor to hash a ptid. */
-
-struct hash_ptid
+template<>
+struct std::hash<ptid_t>
{
size_t operator() (const ptid_t &ptid) const
{
