Update copyright years.

[thirdparty/gcc.git] / libstdc++-v3 / include / bits / quoted_string.h

diff --git a/libstdc++-v3/include/bits/quoted_string.h b/libstdc++-v3/include/bits/quoted_string.h
index 7e75ce4b969b9b57782dfd851c66b427756a20ee..0db3332de6bab3ed66b3ff8d0f1a5793ba6e826b 100644 (file)
--- a/libstdc++-v3/include/bits/quoted_string.h
+++ b/libstdc++-v3/include/bits/quoted_string.h
@@ -1,6 +1,6 @@
 // Helpers for quoted stream manipulators -*- C++ -*-
 
-// Copyright (C) 2013-2015 Free Software Foundation, Inc.
+// Copyright (C) 2013-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the
@@ -39,9 +39,9 @@
 
 namespace std _GLIBCXX_VISIBILITY(default)
 {
-  namespace __detail {
-  _GLIBCXX_BEGIN_NAMESPACE_VERSION
+_GLIBCXX_BEGIN_NAMESPACE_VERSION
 
+  namespace __detail {
     /**
      * @brief Struct for delimited strings.
      */
@@ -64,6 +64,24 @@ namespace std _GLIBCXX_VISIBILITY(default)
        _CharT _M_escape;
       };
 
+#if __cplusplus >= 201703L
+    template<typename _CharT, typename _Traits>
+      struct _Quoted_string<basic_string_view<_CharT, _Traits>, _CharT>
+      {
+       _Quoted_string(basic_string_view<_CharT, _Traits> __str,
+                      _CharT __del, _CharT __esc)
+       : _M_string(__str), _M_delim{__del}, _M_escape{__esc}
+       { }
+
+       _Quoted_string&
+       operator=(_Quoted_string&) = delete;
+
+       basic_string_view<_CharT, _Traits> _M_string;
+       _CharT _M_delim;
+       _CharT _M_escape;
+      };
+#endif // C++17
+
     /**
      * @brief Inserter for quoted strings.
      *
@@ -101,7 +119,7 @@ namespace std _GLIBCXX_VISIBILITY(default)
       {
        std::basic_ostringstream<_CharT, _Traits> __ostr;
        __ostr << __str._M_delim;
-       for (auto& __c : __str._M_string)
+       for (auto __c : __str._M_string)
          {
            if (__c == __str._M_delim || __c == __str._M_escape)
              __ostr << __str._M_escape;
@@ -155,9 +173,9 @@ namespace std _GLIBCXX_VISIBILITY(default)
 
        return __is;
       }
-
-  _GLIBCXX_END_NAMESPACE_VERSION
   } // namespace __detail
+
+_GLIBCXX_END_NAMESPACE_VERSION
 } // namespace std
 
 #endif // C++11