reserve the String Length in urlDecode to avoid String Reallocations

esp8266 · Mar 21, 2024 · b0c04b4 · b0c04b4
1 parent 2bb1b5a
commit b0c04b4
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/libraries/ESP8266WebServer/src/Parsing-impl.h b/libraries/ESP8266WebServer/src/Parsing-impl.h
@@ -514,6 +514,7 @@ String ESP8266WebServerTemplate<ServerType>::urlDecode(const String& text)
   char temp[] = "0x00";
   unsigned int len = text.length();
   unsigned int i = 0;
+  decoded.reserve(len - (std::count(text.begin(), text.end(), '%') * 2));
   while (i < len)
   {
     char decodedChar;