Empty string: Difference between revisions

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@@ Line 463: / Line 463: @@
 str = "";             // replace contents with empty string
 str = {};             // swap contents with temp string (empty),then destruct temp
-std::swap(str, {});   // swap contents with empty string (empty initializer list)
+                       // swap with empty string
+std::string tmp{};     // temp empty string
+str.swap(tmp);         // (builtin swap function)
+std::swap(str, tmp);   // swap contents with tmp
 // create an array of empty strings