| /* |
| Copyright 2019-2020 Glen Joseph Fernandes |
| (glenjofe@gmail.com) |
| |
| Distributed under the Boost Software License, Version 1.0. |
| (http://www.boost.org/LICENSE_1_0.txt) |
| */ |
| #ifndef BOOST_IO_DETAIL_BUFFER_FILL_HPP |
| #define BOOST_IO_DETAIL_BUFFER_FILL_HPP |
| |
| #include <iosfwd> |
| #include <cstddef> |
| |
| namespace boost { |
| namespace io { |
| namespace detail { |
| |
| template<class charT, class traits> |
| inline bool |
| buffer_fill(std::basic_streambuf<charT, traits>& buf, charT ch, |
| std::size_t size) |
| { |
| charT fill[] = { ch, ch, ch, ch, ch, ch, ch, ch }; |
| enum { |
| chunk = sizeof fill / sizeof(charT) |
| }; |
| for (; size > chunk; size -= chunk) { |
| if (static_cast<std::size_t>(buf.sputn(fill, chunk)) != chunk) { |
| return false; |
| } |
| } |
| return static_cast<std::size_t>(buf.sputn(fill, size)) == size; |
| } |
| |
| } /* detail */ |
| } /* io */ |
| } /* boost */ |
| |
| #endif |
