40 lines
1.1 KiB
C++
40 lines
1.1 KiB
C++
// SPDX-FileCopyrightText: 2026 Yu-Sheng Lin <johnjohnlys@gmail.com>
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// SPDX-License-Identifier: MIT
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// Project: libfstwriter
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// Website: https://github.com/gtkwave/libfstwriter
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// direct include
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#include "fstcpp/fstcpp_variable_info.h"
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// C system headers
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// C++ standard library headers
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#include <algorithm>
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// Other libraries' .h files.
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// Your project's .h files.
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namespace fst {
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// I don't know why I need to define them here, but StackOverflow says it
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constexpr uint64_t VariableInfo::kCapacityBaseShift;
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constexpr uint64_t VariableInfo::kCapacityBase;
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void VariableInfo::reallocate(uint64_t new_size) {
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// Allocate new memory
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const uint32_t new_capacity_log2{
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std::max(
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static_cast<uint32_t>(platform::clog2(new_size)),
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static_cast<uint32_t>(kCapacityBaseShift)
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) -
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static_cast<uint32_t>(kCapacityBaseShift)
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};
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uint8_t *new_data{new uint8_t[kCapacityBase << new_capacity_log2]};
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// Copy old data to new memory
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if (m_data != nullptr) {
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const uint64_t old_size{size()};
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std::copy_n(m_data, old_size, new_data);
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delete[] m_data;
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}
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m_data = new_data;
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capacity_log2(new_capacity_log2);
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}
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} // namespace fst
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