[PATCH 3/5] XML writer: track emitted types by bare pointer

[Matthias Maennich <maennich@google.com>]

This is a performance and safety improvement made possible by the
previous changes which ensure that the same pointers are inserted and
looked up.

This essentially removes the now unnecessary deep comparison.

	* src/abg-writer.cc (type_ptr_set_type): Change typedef
	container type to use default equality and hashing for pointer
	keys.
	(fn_type_ptr_set_type): Likewise.

Reviewed-by: Giuliano Procida <gprocida@google.com>
Signed-off-by: Matthias Maennich <maennich@google.com>
---
 src/abg-writer.cc | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/src/abg-writer.cc b/src/abg-writer.cc
index 4cf2a7fb16af..d2ef19eb7095 100644
--- a/src/abg-writer.cc
+++ b/src/abg-writer.cc
@@ -123,14 +123,10 @@ typedef unordered_map<type_base*,
 		      abigail::diff_utils::deep_ptr_eq_functor> type_ptr_map;
 
 // A convenience typedef for a set of type_base*.
-typedef unordered_set<const type_base*, type_hasher,
-		      abigail::diff_utils::deep_ptr_eq_functor>
-type_ptr_set_type;
+typedef std::unordered_set<const type_base*> type_ptr_set_type;
 
 /// A convenience typedef for a set of function type*.
-typedef unordered_set<function_type*, type_hasher,
-		      abigail::diff_utils::deep_ptr_eq_functor>
-fn_type_ptr_set_type;
+typedef std::unordered_set<function_type*> fn_type_ptr_set_type;
 
 typedef unordered_map<shared_ptr<function_tdecl>,
 		      string,
-- 
2.34.1.400.ga245620fadb-goog