From 7a91f471318580729b4f07103fbf217824623efd Mon Sep 17 00:00:00 2001
From: Andrzej Kotulski <akotulski@fb.com>
Date: Thu, 21 Apr 2016 09:34:41 -0700
Subject: [PATCH] Fix definition of std::hash<unique_ptr> in C++ models

Summary:stdlibc++ headers didn't like the fact that hash<unique_ptr> didn't have defined operator() directly.
Do that and provide empty body. Keep inheritance in case it helps compilation to succeed.

Reviewed By: dulmarod

Differential Revision: D3207721

fb-gh-sync-id: 8c950da
fbshipit-source-id: 8c950da
---
 infer/models/cpp/include/infer_model/unique_ptr.h | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/infer/models/cpp/include/infer_model/unique_ptr.h b/infer/models/cpp/include/infer_model/unique_ptr.h
index 82d93b418..6464cc6b2 100644
--- a/infer/models/cpp/include/infer_model/unique_ptr.h
+++ b/infer/models/cpp/include/infer_model/unique_ptr.h
@@ -332,8 +332,10 @@ inline bool operator>=(nullptr_t, const unique_ptr<_T1, _D1>& __x) {
   return !(nullptr < __x);
 }
 
-template <class T>
-struct hash<unique_ptr<T>> : public hash<std__unique_ptr<T>> {};
+template <class T, class D>
+struct hash<unique_ptr<T, D>> : public hash<std__unique_ptr<T, D>> {
+  size_t operator()(const unique_ptr<T, D>& __u) const noexcept {}
+};
 
 template <typename _Tp>
 struct _MakeUniq2 {