From 0fbf20c647829846fa9e2230eed8498e35a3af52 Mon Sep 17 00:00:00 2001
From: shawayush <ayushshaw456@gmail.com>
Date: Tue, 7 Apr 2020 23:39:50 +0530
Subject: [PATCH] Adds to Wstring

---
 cores/arduino/WString.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/cores/arduino/WString.cpp b/cores/arduino/WString.cpp
index 4c0155998..85f66c12d 100644
--- a/cores/arduino/WString.cpp
+++ b/cores/arduino/WString.cpp
@@ -281,6 +281,8 @@ unsigned char String::concat(const char *cstr)
 
 unsigned char String::concat(char c)
 {
+	std::string text(c);
+	if (text.substr(len) == "\0") return 1;
 	char buf[2];
 	buf[0] = c;
 	buf[1] = 0;