add boost on mac

macx64/include/boost/beast/http/impl/error.ipp

@@ -0,0 +1,104 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// 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)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+#ifndef BOOST_BEAST_HTTP_IMPL_ERROR_IPP
+#define BOOST_BEAST_HTTP_IMPL_ERROR_IPP
+
+#include <boost/beast/http/error.hpp>
+#include <type_traits>
+
+namespace boost {
+namespace beast {
+namespace http {
+namespace detail {
+
+class http_error_category : public error_category
+{
+public:
+    const char*
+    name() const noexcept override
+    {
+        return "beast.http";
+    }
+
+    std::string
+    message(int ev) const override
+    {
+        switch(static_cast<error>(ev))
+        {
+        case error::end_of_stream: return "end of stream";
+        case error::partial_message: return "partial message";
+        case error::need_more: return "need more";
+        case error::unexpected_body: return "unexpected body";
+        case error::need_buffer: return "need buffer";
+        case error::end_of_chunk: return "end of chunk";
+        case error::buffer_overflow: return "buffer overflow";
+        case error::header_limit: return "header limit exceeded";
+        case error::body_limit: return "body limit exceeded";
+        case error::bad_alloc: return "bad alloc";
+        case error::bad_line_ending: return "bad line ending";
+        case error::bad_method: return "bad method";
+        case error::bad_target: return "bad target";
+        case error::bad_version: return "bad version";
+        case error::bad_status: return "bad status";
+        case error::bad_reason: return "bad reason";
+        case error::bad_field: return "bad field";
+        case error::bad_value: return "bad value";
+        case error::bad_content_length: return "bad Content-Length";
+        case error::bad_transfer_encoding: return "bad Transfer-Encoding";
+        case error::bad_chunk: return "bad chunk";
+        case error::bad_chunk_extension: return "bad chunk extension";
+        case error::bad_obs_fold: return "bad obs-fold";
+        case error::stale_parser: return "stale parser";
+
+        default:
+            return "beast.http error";
+        }
+    }
+
+    error_condition
+    default_error_condition(
+        int ev) const noexcept override
+    {
+        return error_condition{ev, *this};
+    }
+
+    bool
+    equivalent(int ev,
+        error_condition const& condition
+            ) const noexcept override
+    {
+        return condition.value() == ev &&
+            &condition.category() == this;
+    }
+
+    bool
+    equivalent(error_code const& error,
+        int ev) const noexcept override
+    {
+        return error.value() == ev &&
+            &error.category() == this;
+    }
+};
+
+} // detail
+
+error_code
+make_error_code(error ev)
+{
+    static detail::http_error_category const cat{};
+    return error_code{static_cast<
+        std::underlying_type<error>::type>(ev), cat};
+}
+
+} // http
+} // beast
+} // boost
+
+#endif