1 /*
2 Copyright 2019 Glen Joseph Fernandes
3 (glenjofe@gmail.com)
4
5 Distributed under the Boost Software License, Version 1.0.
6 (http://www.boost.org/LICENSE_1_0.txt)
7 */
8 #ifndef BOOST_IO_OSTREAM_PUT_HPP
9 #define BOOST_IO_OSTREAM_PUT_HPP
10
11 #include <boost/io/detail/buffer_fill.hpp>
12 #include <boost/io/detail/ostream_guard.hpp>
13
14 namespace boost {
15 namespace io {
16
17 template<class charT, class traits>
18 inline std::basic_ostream<charT, traits>&
ostream_put(std::basic_ostream<charT,traits> & os,const charT * data,std::size_t size)19 ostream_put(std::basic_ostream<charT, traits>& os, const charT* data,
20 std::size_t size)
21 {
22 typedef std::basic_ostream<charT, traits> stream;
23 detail::ostream_guard<charT, traits> guard(os);
24 typename stream::sentry entry(os);
25 if (entry) {
26 std::basic_streambuf<charT, traits>& buf = *os.rdbuf();
27 std::size_t width = static_cast<std::size_t>(os.width());
28 if (width <= size) {
29 if (static_cast<std::size_t>(buf.sputn(data, size)) != size) {
30 return os;
31 }
32 } else if ((os.flags() & stream::adjustfield) == stream::left) {
33 if (static_cast<std::size_t>(buf.sputn(data, size)) != size ||
34 !detail::buffer_fill(buf, os.fill(), width - size)) {
35 return os;
36 }
37 } else if (!detail::buffer_fill(buf, os.fill(), width - size) ||
38 static_cast<std::size_t>(buf.sputn(data, size)) != size) {
39 return os;
40 }
41 os.width(0);
42 }
43 guard.release();
44 return os;
45 }
46
47 } /* io */
48 } /* boost */
49
50 #endif
51