1 files changed, 103 insertions, 0 deletions
diff --git a/boost/process/detail/windows/locale.hpp b/boost/process/detail/windows/locale.hpp
new file mode 100644
index 0000000000..34da2a69d3
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+++ b/boost/process/detail/windows/locale.hpp
@@ -0,0 +1,103 @@
+// Copyright (c) 2016 Klemens D. Morgenstern
+// Copyright (c) 2008 Beman Dawes
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+#ifndef BOOST_PROCESS_DETAIL_WINDOWS_LOCALE_HPP_
+#define BOOST_PROCESS_DETAIL_WINDOWS_LOCALE_HPP_
+
+#include <locale>
+#include <boost/core/ignore_unused.hpp>
+#include <boost/detail/winapi/file_management.hpp>
+#include <boost/detail/winapi/character_code_conversion.hpp>
+
+namespace boost
+{
+namespace process
+{
+namespace detail
+{
+namespace windows
+{
+
+//copied from boost.filesystem
+class windows_file_codecvt
+   : public std::codecvt< wchar_t, char, std::mbstate_t >
+ {
+ public:
+   explicit windows_file_codecvt(std::size_t refs = 0)
+       : std::codecvt<wchar_t, char, std::mbstate_t>(refs) {}
+ protected:
+
+   bool do_always_noconv() const noexcept override { return false; }
+
+   //  seems safest to assume variable number of characters since we don't
+   //  actually know what codepage is active
+   int do_encoding() const noexcept override { return 0; }
+
+   std::codecvt_base::result do_in(std::mbstate_t& state,
+     const char* from, const char* from_end, const char*& from_next,
+     wchar_t* to, wchar_t* to_end, wchar_t*& to_next) const override
+   {
+     boost::ignore_unused(state);
+     ::boost::detail::winapi::UINT_ codepage = AreFileApisANSI() ?
+             ::boost::detail::winapi::CP_ACP_ :
+             ::boost::detail::winapi::CP_OEMCP_;
+
+     int count;
+     if ((count = ::boost::detail::winapi::MultiByteToWideChar(codepage,
+             ::boost::detail::winapi::MB_PRECOMPOSED_, from,
+       static_cast<int>(from_end - from), to, static_cast<int>(to_end - to))) == 0)
+     {
+       return error;  // conversion failed
+     }
+
+     from_next = from_end;
+     to_next = to + count;
+     *to_next = L'\0';
+     return ok;
+  }
+
+   std::codecvt_base::result do_out(std::mbstate_t & state,
+     const wchar_t* from, const wchar_t* from_end, const wchar_t*& from_next,
+     char* to, char* to_end, char*& to_next) const override
+   {
+     boost::ignore_unused(state);
+     auto codepage = ::boost::detail::winapi::AreFileApisANSI() ?
+                       ::boost::detail::winapi::CP_ACP_ :
+                     ::boost::detail::winapi::CP_OEMCP_;
+
+     int count;
+     if ((count = ::boost::detail::winapi::WideCharToMultiByte(codepage,
+                   ::boost::detail::winapi::WC_NO_BEST_FIT_CHARS_, from,
+                  static_cast<int>(from_end - from), to, static_cast<int>(to_end - to), 0, 0)) == 0)
+     {
+       return error;  // conversion failed
+     }
+
+     from_next = from_end;
+     to_next = to + count;
+     *to_next = '\0';
+     return ok;
+   }
+
+   std::codecvt_base::result do_unshift(std::mbstate_t&,
+       char* /*from*/, char* /*to*/, char* & /*next*/) const override { return ok; }
+
+   int do_length(std::mbstate_t&,
+     const char* /*from*/, const char* /*from_end*/, std::size_t /*max*/) const override { return 0; }
+
+   int do_max_length() const noexcept override { return 0; }
+ };
+
+
+
+}
+}
+}
+}
+
+
+
+#endif /* BOOST_PROCESS_LOCALE_HPP_ */