test: refined custom id example

2021-04-13 11:51:50 +02:00
parent 5c56cbd672
commit fc69e91636
1 changed files with 4 additions and 3 deletions
--- a/test/example/custom_identifier.cpp
+++ b/test/example/custom_identifier.cpp
@@ -5,16 +5,17 @@

 struct entity_id {
    using entity_type = typename entt::entt_traits<entt::entity>::entity_type;
+    static constexpr auto null = entt::null;

-    entity_id(entity_type value = entt::null)
+    constexpr entity_id(entity_type value = null)
        : entt{value}
    {}

-    entity_id(const entity_id &other)
+    constexpr entity_id(const entity_id &other)
        : entt{other.entt}
    {}

-    operator entity_type() const {
+    constexpr operator entity_type() const {
        return entt;
    }