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beast.streams improvements:

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* New basic_std_ostream wraps any std::stream.
* New debug_ostream redirects output to debugger if attached.
This commit is contained in:
Vinnie Falco
2014-03-20 16:50:25 -07:00
parent e92dd73169
commit 0bb6171a85
5 changed files with 166 additions and 20 deletions
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73
beast/streams/basic_std_ostream.h Normal file
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//------------------------------------------------------------------------------
/*
This file is part of Beast: https://github.com/vinniefalco/Beast
Copyright 2013, Vinnie Falco <vinnie.falco@gmail.com>
Permission to use, copy, modify, and/or distribute this software for any
purpose with or without fee is hereby granted, provided that the above
copyright notice and this permission notice appear in all copies.
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
ANY SPECIAL , DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
//==============================================================================
#ifndef BEAST_UTILITY_STD_OSTREAM_H_INCLUDED
#define BEAST_UTILITY_STD_OSTREAM_H_INCLUDED
#include "basic_abstract_ostream.h"
#include <ostream>
namespace beast {
/** Wraps an existing std::basic_ostream as an abstract_ostream. */
template <
class CharT,
class Traits = std::char_traits <CharT>
>
class basic_std_ostream
: public basic_abstract_ostream <CharT, Traits>
{
private:
using typename basic_abstract_ostream <CharT, Traits>::string_type;
std::reference_wrapper <std::ostream> m_stream;
public:
explicit basic_std_ostream (
std::basic_ostream <CharT, Traits>& stream)
: m_stream (stream)
{
}
void
write (string_type const& s) override
{
m_stream.get() << s << std::endl;
}
};
typedef basic_std_ostream <char> std_ostream;
//------------------------------------------------------------------------------
/** Returns a basic_std_ostream using template argument deduction. */
template <
class CharT,
class Traits = std::char_traits <CharT>
>
basic_std_ostream <CharT, Traits>
make_std_ostream (std::basic_ostream <CharT, Traits>& stream)
{
return basic_std_ostream <CharT, Traits> (stream);
}
}
#endif