2 files changed, 13 insertions, 4 deletions
diff --git a/TAO/tao/CORBA_String.cpp b/TAO/tao/CORBA_String.cpp
index aaa20da44ec..a0fe07ad895 100644
--- a/TAO/tao/CORBA_String.cpp
+++ b/TAO/tao/CORBA_String.cpp
@@ -31,9 +31,10 @@ istream &
 operator>> (istream &is, CORBA::String_var &sv)
 {
   is.seekg (0, ios::end);
-  sv = CORBA::string_alloc (static_cast<CORBA::ULong> (is.tellg ()));
+  std::streamsize const n = is.tellg ();
+  sv = CORBA::string_alloc (static_cast<CORBA::ULong> (n));
   is.seekg (0, ios::beg);
-  is >> sv.inout ();
+  is.read (sv.inout (), n);
   return is;
 }
 
@@ -48,12 +49,15 @@ istream &
 operator>> (istream &is, CORBA::String_out &so)
 {
   is.seekg (0, ios::end);
-  so = CORBA::string_alloc (static_cast<CORBA::ULong> (is.tellg ()));
+  std::streamsize const n = is.tellg ();
+  so = CORBA::string_alloc (static_cast<CORBA::ULong> (n));
   is.seekg (0, ios::beg);
-  is >> so.ptr ();
+  is.read (so.ptr (), n);
   return is;
 }
 
+#ifndef ACE_HAS_CPP20
+
 // Until we implement WString support for platforms with a
 // 4-byte wchar_t, we just define the following to emit
 // the CORBA::WChars one by one.
@@ -136,6 +140,8 @@ operator>> (istream &is, CORBA::WString_out &wso)
   return is;
 }
 
+#endif /* ACE_HAS_CPP20 */
+
 #endif /* ACE_LACKS_IOSTREAM_TOTALLY */
 
 TAO_END_VERSIONED_NAMESPACE_DECL
diff --git a/TAO/tao/CORBA_String.h b/TAO/tao/CORBA_String.h
index 5e308bc9ad2..2338c9a03a4 100644
--- a/TAO/tao/CORBA_String.h
+++ b/TAO/tao/CORBA_String.h
@@ -273,6 +273,8 @@ TAO_Export ostream &
 operator<< (ostream &, CORBA::String_out &);
 TAO_Export istream &
 operator>> (istream &, CORBA::String_out &);
+
+#  ifndef ACE_HAS_CPP20
 TAO_Export ostream &
 operator<< (ostream &, const CORBA::WString_var &);
 TAO_Export istream &
@@ -281,6 +283,7 @@ TAO_Export ostream &
 operator<< (ostream &, CORBA::WString_out &);
 TAO_Export istream &
 operator>> (istream &, CORBA::WString_out &);
+#  endif /* ACE_HAS_CPP20 */
 
 # endif /* ACE_LACKS_IOSTREAM_TOTALLY */