putback
The function template put provides a uniform interface for putting back characters read from models of Peekable, for use in the definitions of new Filter types.
<boost/iostreams/operations.hpp>Puts back a character to a given instance of the template parameter Peekable
namespace boost { namespace iostreams { template<typename Peekable> void putback(Peekable& peekable, typename io_char<Peekable>::type c); } } // End namespace boost::io
| Peekable | - | A model of Peekable or a standard input stream or stream buffer type. |
The semantics of putback depends on the category of Peekable as follows:
io_category<Peekable>::type | semantics |
|---|---|
convertible to istream_tag |
invokes peekable.putback(c) |
convertible to streambuf_tag but not to istream_tag |
invokes peekable.sputbackc(c) |
convertible to peekable_tag but not to streambuf_tag or istream_tag |
invokes peekable.putback(c) |
| otherwise | compile-time error |
Revised 20 May, 2004
© Copyright Jonathan Turkanis, 2004
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)