整理

include/boost/process/v2/error.hpp

@@ -0,0 +1,44 @@
+// Copyright (c) 2021 Klemens D. Morgenstern
+//
+// 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_V2_ERROR_HPP
+#define BOOST_PROCESS_V2_ERROR_HPP
+
+#include <boost/process/v2/detail/config.hpp>
+
+BOOST_PROCESS_V2_BEGIN_NAMESPACE
+
+namespace error
+{
+
+/// Errors used for utf8 <-> UCS-2 conversions.
+enum utf8_conv_error
+{
+    insufficient_buffer = 1,
+    invalid_character,
+};
+
+extern BOOST_PROCESS_V2_DECL const error_category& get_utf8_category();
+static const error_category& utf8_category = get_utf8_category();
+
+extern BOOST_PROCESS_V2_DECL const error_category& get_exit_code_category();
+
+/// An error category that can be used to interpret exit codes of subprocesses.
+/** Currently not used by boost.process, but it might be in the future.
+ * 
+ * void run_my_process(filesystem::path pt, error_code & ec)
+ * {
+ *     process proc(pt, {});
+ *     proc.wait();
+ *     ec.assign(proc.native_exit_code(), error::get_exit_code_category());
+ * }
+ * 
+ * */
+static const error_category& exit_code_category = get_exit_code_category();
+
+}
+
+BOOST_PROCESS_V2_END_NAMESPACE
+
+#endif //BOOST_PROCESS_V2_ERROR_HPP