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beast.streams improvements:
* New basic_std_ostream wraps any std::stream. * New debug_ostream redirects output to debugger if attached.
This commit is contained in:
Vinnie Falco
@@ -193,6 +193,8 @@
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<ClInclude Include="..\..\beast\streams\abstract_ostream.h" />
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<ClInclude Include="..\..\beast\streams\basic_abstract_ostream.h" />
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<ClInclude Include="..\..\beast\streams\basic_scoped_ostream.h" />
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<ClInclude Include="..\..\beast\streams\debug_ostream.h" />
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<ClInclude Include="..\..\beast\streams\basic_std_ostream.h" />
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<ClInclude Include="..\..\beast\Strings.h" />
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<ClInclude Include="..\..\beast\strings\CharacterFunctions.h" />
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<ClInclude Include="..\..\beast\strings\CharPointer_ASCII.h" />
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@@ -1164,6 +1164,12 @@
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<ClInclude Include="..\..\beast\container\const_container.h">
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<Filter>beast\container</Filter>
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</ClInclude>
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<ClInclude Include="..\..\beast\streams\basic_std_ostream.h">
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<Filter>beast\streams</Filter>
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</ClInclude>
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<ClInclude Include="..\..\beast\streams\debug_ostream.h">
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<Filter>beast\streams</Filter>
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</ClInclude>
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</ItemGroup>
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<ItemGroup>
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<ClCompile Include="..\..\modules\beast_core\files\DirectoryIterator.cpp">
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@@ -66,26 +66,6 @@ public:
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}
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/** @} */
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/** Returns a basic_scoped_ostream without appending anything.
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This can be used if the caller wants to put the scoped stream
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on the stack to build up output in a thread-safe fashion.
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*/
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#if 0
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scoped_stream_type
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scoped_stream ()
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{
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#if 0
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return scoped_stream_type (
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[this](string_type const& s)
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{
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this->write (s);
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});
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#else
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return scoped_stream_type (*this);
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#endif
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}
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#endif
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/** Called to output each string. */
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virtual
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void
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73
beast/streams/basic_std_ostream.h
Normal file
73
beast/streams/basic_std_ostream.h
Normal file
@@ -0,0 +1,73 @@
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//------------------------------------------------------------------------------
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/*
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This file is part of Beast: https://github.com/vinniefalco/Beast
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Copyright 2013, Vinnie Falco <vinnie.falco@gmail.com>
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Permission to use, copy, modify, and/or distribute this software for any
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purpose with or without fee is hereby granted, provided that the above
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copyright notice and this permission notice appear in all copies.
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THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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ANY SPECIAL , DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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//==============================================================================
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#ifndef BEAST_UTILITY_STD_OSTREAM_H_INCLUDED
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#define BEAST_UTILITY_STD_OSTREAM_H_INCLUDED
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#include "basic_abstract_ostream.h"
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#include <ostream>
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namespace beast {
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/** Wraps an existing std::basic_ostream as an abstract_ostream. */
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template <
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class CharT,
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class Traits = std::char_traits <CharT>
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>
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class basic_std_ostream
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: public basic_abstract_ostream <CharT, Traits>
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{
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private:
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using typename basic_abstract_ostream <CharT, Traits>::string_type;
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std::reference_wrapper <std::ostream> m_stream;
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public:
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explicit basic_std_ostream (
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std::basic_ostream <CharT, Traits>& stream)
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: m_stream (stream)
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{
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}
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void
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write (string_type const& s) override
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{
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m_stream.get() << s << std::endl;
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}
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};
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typedef basic_std_ostream <char> std_ostream;
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//------------------------------------------------------------------------------
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/** Returns a basic_std_ostream using template argument deduction. */
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template <
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class CharT,
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class Traits = std::char_traits <CharT>
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>
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basic_std_ostream <CharT, Traits>
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make_std_ostream (std::basic_ostream <CharT, Traits>& stream)
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{
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return basic_std_ostream <CharT, Traits> (stream);
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}
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}
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#endif
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85
beast/streams/debug_ostream.h
Normal file
85
beast/streams/debug_ostream.h
Normal file
@@ -0,0 +1,85 @@
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//------------------------------------------------------------------------------
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/*
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This file is part of Beast: https://github.com/vinniefalco/Beast
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Copyright 2013, Vinnie Falco <vinnie.falco@gmail.com>
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Permission to use, copy, modify, and/or distribute this software for any
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purpose with or without fee is hereby granted, provided that the above
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copyright notice and this permission notice appear in all copies.
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THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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ANY SPECIAL , DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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//==============================================================================
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#ifndef BEAST_UTILITY_DEBUG_OSTREAM_H_INCLUDED
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#define BEAST_UTILITY_DEBUG_OSTREAM_H_INCLUDED
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#include "abstract_ostream.h"
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#include <iostream>
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#ifdef _MSC_VER
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# ifndef WIN32_LEAN_AND_MEAN // VC_EXTRALEAN
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# define WIN32_LEAN_AND_MEAN
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# include <windows.h>
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# undef WIN32_LEAN_AND_MEAN
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# else
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# include <windows.h>
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# endif
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#endif
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namespace beast {
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#ifdef _MSC_VER
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/** A basic_abstract_ostream that redirects output to an attached debugger. */
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class debug_ostream
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: public abstract_ostream
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{
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private:
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bool m_debugger;
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public:
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debug_ostream()
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: m_debugger (IsDebuggerPresent() != FALSE)
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{
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// Note that the check for an attached debugger is made only
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// during construction time, for efficiency. A stream created before
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// the debugger is attached will not have output redirected.
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}
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void
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write (string_type const& s) override
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{
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if (m_debugger)
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{
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OutputDebugStringA ((s + "\n").c_str());
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return;
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}
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std::cout << s << std::endl;
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}
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};
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#else
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class debug_ostream
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: public abstract_ostream
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{
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public:
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void
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write (string_type const& s) override
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{
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std::cout << s << std::endl;
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}
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};
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#endif
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}
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#endif
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