63 lines
1.1 KiB
C++
63 lines
1.1 KiB
C++
//
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// Copyright (c) 2019 Vinnie Falco (vinnie.falco@gmail.com)
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//
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// Distributed under the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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//
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// Official repository: https://github.com/boostorg/json
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//
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#ifndef BOOST_JSON_DETAIL_IMPL_STACK_IPP
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#define BOOST_JSON_DETAIL_IMPL_STACK_IPP
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#include <boost/json/detail/stack.hpp>
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namespace boost {
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namespace json {
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namespace detail {
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stack::
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~stack()
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{
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if(base_ != buf_)
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sp_->deallocate(
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base_, cap_);
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}
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stack::
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stack(
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storage_ptr sp,
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unsigned char* buf,
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std::size_t buf_size) noexcept
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: sp_(std::move(sp))
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, cap_(buf_size)
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, base_(buf)
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, buf_(buf)
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{
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}
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void
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stack::
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reserve(std::size_t n)
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{
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if(cap_ >= n)
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return;
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auto const base = static_cast<
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unsigned char*>(sp_->allocate(n));
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if(base_)
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{
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if(size_ > 0)
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std::memcpy(base, base_, size_);
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if(base_ != buf_)
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sp_->deallocate(base_, cap_);
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}
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base_ = base;
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cap_ = n;
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}
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} // detail
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} // namespace json
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} // namespace boost
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#endif
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