51 lines
1.5 KiB
C++
51 lines
1.5 KiB
C++
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/*
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Copyright 2019 Glen Joseph Fernandes
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(glenjofe@gmail.com)
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Distributed under the Boost Software License, Version 1.0.
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(http://www.boost.org/LICENSE_1_0.txt)
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*/
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#ifndef BOOST_IO_OSTREAM_PUT_HPP
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#define BOOST_IO_OSTREAM_PUT_HPP
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#include <boost/io/detail/buffer_fill.hpp>
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#include <boost/io/detail/ostream_guard.hpp>
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namespace boost {
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namespace io {
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template<class charT, class traits>
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inline std::basic_ostream<charT, traits>&
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ostream_put(std::basic_ostream<charT, traits>& os, const charT* data,
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std::size_t size)
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{
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typedef std::basic_ostream<charT, traits> stream;
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detail::ostream_guard<charT, traits> guard(os);
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typename stream::sentry entry(os);
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if (entry) {
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std::basic_streambuf<charT, traits>& buf = *os.rdbuf();
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std::size_t width = static_cast<std::size_t>(os.width());
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if (width <= size) {
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if (static_cast<std::size_t>(buf.sputn(data, size)) != size) {
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return os;
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}
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} else if ((os.flags() & stream::adjustfield) == stream::left) {
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if (static_cast<std::size_t>(buf.sputn(data, size)) != size ||
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!detail::buffer_fill(buf, os.fill(), width - size)) {
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return os;
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}
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} else if (!detail::buffer_fill(buf, os.fill(), width - size) ||
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static_cast<std::size_t>(buf.sputn(data, size)) != size) {
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return os;
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}
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os.width(0);
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}
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guard.release();
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return os;
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}
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} /* io */
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} /* boost */
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#endif
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