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/**
* Copyright (C) 2015 Topology LP
* All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*/
#ifndef CPPCODEC_DETAIL_RAW_RESULT_BUFFER
#define CPPCODEC_DETAIL_RAW_RESULT_BUFFER
#include <stdint.h> // for size_t
#include <stdlib.h> // for abort()
#include "access.hpp"
namespace cppcodec {
namespace data {
class raw_result_buffer
{
public:
raw_result_buffer(char* data, size_t capacity)
: m_ptr(data + capacity)
, m_begin(data)
{
}
char last() const { return *(m_ptr - 1); }
void push_back(char c) { *m_ptr = c; ++m_ptr; }
size_t size() const { return m_ptr - m_begin; }
void resize(size_t size) { m_ptr = m_begin + size; }
private:
char* m_ptr;
char* m_begin;
};
template <> inline void init<raw_result_buffer>(
raw_result_buffer& result, empty_result_state&, size_t capacity)
{
// This version of init() doesn't do a reserve(), and instead checks whether the
// initial size (capacity) is enough before resizing to 0.
// The codec is expected not to exceed this capacity.
if (capacity > result.size()) {
abort();
}
result.resize(0);
}
template <> inline void finish<raw_result_buffer>(raw_result_buffer&, empty_result_state&) { }
} // namespace data
} // namespace cppcodec
#endif
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