From ea5546d7c89080297b9fee20fadc339e0883af19 Mon Sep 17 00:00:00 2001
From: ZhilkinSerg <ZhilkinSerg@users.noreply.github.com>
Date: Tue, 3 Dec 2019 19:00:58 +0300
Subject: [PATCH] Added noexcept specifier to hash functions

---
 src/active_item_cache.h | 2 +-
 src/color.h             | 2 +-
 src/int_id.h            | 2 +-
 src/point.h             | 4 ++--
 src/savegame_legacy.cpp | 2 +-
 src/string_id.h         | 2 +-
 6 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/src/active_item_cache.h b/src/active_item_cache.h
index 3b93d04470e76..5417dd6ef77c1 100644
--- a/src/active_item_cache.h
+++ b/src/active_item_cache.h
@@ -27,7 +27,7 @@ namespace std
 {
 template <>
 struct hash<special_item_type> {
-    std::size_t operator()( const special_item_type &k ) const {
+    std::size_t operator()( const special_item_type &k ) const noexcept {
         return static_cast<size_t>( k );
     }
 };
diff --git a/src/color.h b/src/color.h
index 28c0e27c97ff6..ecab2fc3ab6ae 100644
--- a/src/color.h
+++ b/src/color.h
@@ -382,7 +382,7 @@ namespace std
 {
 template<>
 struct hash<nc_color> {
-    std::size_t operator()( const nc_color &v ) const {
+    std::size_t operator()( const nc_color &v ) const noexcept {
         return hash<int>()( v.operator int() );
     }
 };
diff --git a/src/int_id.h b/src/int_id.h
index 359637cb50491..a3a5bfbae5464 100644
--- a/src/int_id.h
+++ b/src/int_id.h
@@ -119,7 +119,7 @@ namespace std
 {
 template<typename T>
 struct hash< int_id<T> > {
-    std::size_t operator()( const int_id<T> &v ) const {
+    std::size_t operator()( const int_id<T> &v ) const noexcept {
         return hash<int>()( v.to_i() );
     }
 };
diff --git a/src/point.h b/src/point.h
index 589d26803d8ab..b228bf7423ebb 100644
--- a/src/point.h
+++ b/src/point.h
@@ -318,7 +318,7 @@ namespace std
 {
 template <>
 struct hash<point> {
-    std::size_t operator()( const point &k ) const {
+    std::size_t operator()( const point &k ) const noexcept {
         constexpr uint64_t a = 2862933555777941757;
         size_t result = k.y;
         result *= a;
@@ -334,7 +334,7 @@ namespace std
 {
 template <>
 struct hash<tripoint> {
-    std::size_t operator()( const tripoint &k ) const {
+    std::size_t operator()( const tripoint &k ) const noexcept {
         constexpr uint64_t a = 2862933555777941757;
         size_t result = k.z;
         result *= a;
diff --git a/src/savegame_legacy.cpp b/src/savegame_legacy.cpp
index 1d31fcaa65951..2b608b44b128f 100644
--- a/src/savegame_legacy.cpp
+++ b/src/savegame_legacy.cpp
@@ -36,7 +36,7 @@ namespace std
 template <>
 struct hash<talk_topic_enum> {
     // Operator overload required by std API.
-    std::size_t operator()( const talk_topic_enum &k ) const {
+    std::size_t operator()( const talk_topic_enum &k ) const noexcept {
         return k; // the most trivial hash of them all
     }
 };
diff --git a/src/string_id.h b/src/string_id.h
index 06ccc2e30b5c3..5b2a396f89ca9 100644
--- a/src/string_id.h
+++ b/src/string_id.h
@@ -202,7 +202,7 @@ namespace std
 {
 template<typename T>
 struct hash< string_id<T> > {
-    std::size_t operator()( const string_id<T> &v ) const {
+    std::size_t operator()( const string_id<T> &v ) const noexcept {
         return hash<std::string>()( v.str() );
     }
 };