Small comment update for find v contains on an unordered_map

doctorlove · doctorlove · commit 477e3e4b75dc · 2023-05-11T15:50:48.000+01:00
diff --git a/Chapter8/main.cpp b/Chapter8/main.cpp
@@ -67,7 +67,7 @@ class State
 public:
     state_value_t choices(const state_key_t& key)
     {
-        if (state.contains(key)) // can we do a find instead?
+        if (state.contains(key)) // Introduced in C++20: we can use find instead
         {
             return state[key];
         }

Original file line number	Diff line number	Diff line change
`@@ -67,7 +67,7 @@ class State`
`67`	`67`	`public:`
`68`	`68`	`state_value_t choices(const state_key_t& key)`
`69`	`69`	`{`
`70`		`- if (state.contains(key)) // can we do a find instead?`
	`70`	`+ if (state.contains(key)) // Introduced in C++20: we can use find instead`
`71`	`71`	`{`
`72`	`72`	`return state[key];`
`73`	`73`	`}`