update boost

linx64/include/boost/mysql/impl/datetime.ipp

@@ -0,0 +1,38 @@
+//
+// Copyright (c) 2019-2023 Ruben Perez Hidalgo (rubenperez038 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)
+//
+
+#ifndef BOOST_MYSQL_IMPL_DATETIME_IPP
+#define BOOST_MYSQL_IMPL_DATETIME_IPP
+
+#pragma once
+
+#include <boost/mysql/datetime.hpp>
+
+#include <cstdio>
+#include <ostream>
+
+std::ostream& boost::mysql::operator<<(std::ostream& os, const datetime& value)
+{
+    // Worst-case output is 37 chars, extra space just in case
+    char buffer[64]{};
+    snprintf(
+        buffer,
+        sizeof(buffer),
+        "%04u-%02u-%02u %02d:%02u:%02u.%06u",
+        static_cast<unsigned>(value.year()),
+        static_cast<unsigned>(value.month()),
+        static_cast<unsigned>(value.day()),
+        static_cast<unsigned>(value.hour()),
+        static_cast<unsigned>(value.minute()),
+        static_cast<unsigned>(value.second()),
+        static_cast<unsigned>(value.microsecond())
+    );
+    os << buffer;
+    return os;
+}
+
+#endif