From fd7583acc0adcce2fa63d21755091ddb3077aa14 Mon Sep 17 00:00:00 2001
From: Mike Buland <eichlan@xagasoft.com>
Date: Sat, 1 Jul 2023 11:06:22 -0700
Subject: Fixed potential memory corruption/race condition.

---
 default.bld                | 5 +++++
 src/tests/utf.cpp          | 1 +
 src/unstable/utfstring.cpp | 8 ++++++++
 src/unstable/utfstring.h   | 1 +
 4 files changed, 15 insertions(+)

diff --git a/default.bld b/default.bld
index b30e374..8f21f6c 100644
--- a/default.bld
+++ b/default.bld
@@ -14,6 +14,11 @@
 include "gensigs.bld";
 
 CXXFLAGS += "-ggdb -W -Wall -I.";
+
+// Deep memory checks
+// CXXFLAGS += "-fsanitize=address -fno-omit-frame-pointer";
+// LDFLAGS += "-fsanitize=address -fno-omit-frame-pointer";
+
 //CXXFLAGS += "-pg";
 //LDFLAGS += "-pg";
 
diff --git a/src/tests/utf.cpp b/src/tests/utf.cpp
index 40d4194..ef7297d 100644
--- a/src/tests/utf.cpp
+++ b/src/tests/utf.cpp
@@ -7,6 +7,7 @@ using namespace Bu;
 
 int main()
 {
+    sio << "Code: " << Bu::__calcHashCode( Bu::UtfString() ) << sio.nl;
     sio << "Code: " << Bu::__calcHashCode( Bu::UtfString("Hello there") )
         << sio.nl;
 
diff --git a/src/unstable/utfstring.cpp b/src/unstable/utfstring.cpp
index 9b712c9..be03c6e 100644
--- a/src/unstable/utfstring.cpp
+++ b/src/unstable/utfstring.cpp
@@ -47,6 +47,14 @@ Bu::UtfString::UtfString( const char *sInput, Encoding eEnc )
     set( Bu::Blob(sInput), eEnc );
 }
 
+Bu::UtfString::UtfString( const UtfString &rSrc ) :
+    aData( rSrc.aData.clone() ),
+    iRawLen( rSrc.iRawLen ),
+    iCharLen( rSrc.iCharLen )
+{
+
+}
+
 Bu::UtfString::~UtfString()
 {
 }
diff --git a/src/unstable/utfstring.h b/src/unstable/utfstring.h
index 5355f3e..e36c2dd 100644
--- a/src/unstable/utfstring.h
+++ b/src/unstable/utfstring.h
@@ -74,6 +74,7 @@ namespace Bu
         UtfString( const Bu::String &sInput, Encoding eEnc=Utf8 );
         UtfString( const Bu::Blob &sInput, Encoding eEnc=Utf8 );
         UtfString( const char *sInput, Encoding eEnc=Utf8 );
+        UtfString( const UtfString &rSrc );
         virtual ~UtfString();
 
         class iterator
-- 
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