2db8bcc353
The former is deprecated with C++14. The standard says both are the same: The contents and meaning of the header<cstddef>are the same as the C standard library header<stddef.h>,except that it does not declare the type wchar_t, that it also declares the type byte and its associated operations (21.2.5), and as noted in 21.2.3 and 21.2.4. Signed-off-by: Rosen Penev <rosenp@gmail.com>
60 lines
1.9 KiB
C++
60 lines
1.9 KiB
C++
/*
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* Copyright 2014-2019 Max Kellermann <max.kellermann@gmail.com>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* - Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* - Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* FOUNDATION OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef READER_HXX
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#define READER_HXX
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#include "util/Compiler.h"
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#include <cstddef>
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/**
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* An interface that can read bytes from a stream until the stream
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* ends.
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*
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* This interface is simpler and less cumbersome to use than
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* #InputStream.
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*/
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class Reader {
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public:
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Reader() = default;
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Reader(const Reader &) = delete;
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/**
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* Read data from the stream.
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*
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* @return the number of bytes read into the given buffer or 0
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* on end-of-stream
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*/
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gcc_nonnull_all
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virtual size_t Read(void *data, size_t size) = 0;
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};
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#endif
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