Suggest that the hash functions be inline

pcb2gcode · Jul 2, 2020 · f4f0c9c · f4f0c9c
1 parent aec3629
commit f4f0c9c
Showing 1 changed file with 3 additions and 3 deletions.
diff --git a/bg_operators.hpp b/bg_operators.hpp
@@ -119,7 +119,7 @@ static std::ostream& operator<<(std::ostream& out, const vector<T>& xs) {
 
 template <typename T>
 struct hash<boost::geometry::model::d2::point_xy<T>> {
-  std::size_t operator()(const boost::geometry::model::d2::point_xy<T>& p) const {
+  inline std::size_t operator()(const boost::geometry::model::d2::point_xy<T>& p) const {
     std::size_t seed = 0;
     boost::hash_combine(seed, p.x());
     boost::hash_combine(seed, p.y());
@@ -129,7 +129,7 @@ struct hash<boost::geometry::model::d2::point_xy<T>> {
 
 template <typename T0, typename T1>
 struct hash<std::pair<T0, T1>> {
-  std::size_t operator()(const std::pair<T0, T1>& x) const {
+  inline std::size_t operator()(const std::pair<T0, T1>& x) const {
     std::size_t seed = 0;
     boost::hash_combine(seed, hash<T0>{}(x.first));
     boost::hash_combine(seed, hash<T1>{}(x.second));
@@ -139,7 +139,7 @@ struct hash<std::pair<T0, T1>> {
 
 template <typename T>
 struct hash<boost::geometry::model::linestring<T>> {
-  std::size_t operator()(const boost::geometry::model::linestring<T>& xs) const {
+  inline std::size_t operator()(const boost::geometry::model::linestring<T>& xs) const {
     std::size_t seed = 0;
     for (const auto& x : xs) {
       boost::hash_combine(seed, hash<T>{}(x));