2023-06-20 04:33:09 +00:00
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#include "StarByteArray.hpp"
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#include "StarEncode.hpp"
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namespace Star {
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ByteArray ByteArray::fromCString(char const* str) {
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return ByteArray(str, strlen(str));
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}
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ByteArray ByteArray::fromCStringWithNull(char const* str) {
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size_t len = strlen(str);
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ByteArray ba(str, len + 1);
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ba[len] = 0;
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return ba;
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}
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ByteArray ByteArray::withReserve(size_t capacity) {
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ByteArray bytes;
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bytes.reserve(capacity);
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return bytes;
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}
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ByteArray::ByteArray() {
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m_data = nullptr;
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m_capacity = 0;
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m_size = 0;
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}
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ByteArray::ByteArray(size_t dataSize, char c)
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: ByteArray() {
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fill(dataSize, c);
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}
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ByteArray::ByteArray(const char* data, size_t dataSize)
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: ByteArray() {
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append(data, dataSize);
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}
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ByteArray::ByteArray(ByteArray const& b)
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: ByteArray() {
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operator=(b);
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}
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ByteArray::ByteArray(ByteArray&& b) noexcept
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: ByteArray() {
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operator=(move(b));
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}
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ByteArray::~ByteArray() {
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reset();
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}
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ByteArray& ByteArray::operator=(ByteArray const& b) {
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if (&b != this) {
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clear();
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append(b);
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}
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return *this;
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}
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ByteArray& ByteArray::operator=(ByteArray&& b) noexcept {
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if (&b != this) {
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reset();
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m_data = take(b.m_data);
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m_capacity = take(b.m_capacity);
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m_size = take(b.m_size);
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}
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return *this;
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}
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void ByteArray::reset() {
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if (m_data) {
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Star::free(m_data, m_capacity);
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m_data = nullptr;
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m_capacity = 0;
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m_size = 0;
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}
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}
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void ByteArray::reserve(size_t newCapacity) {
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if (newCapacity > m_capacity) {
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if (!m_data) {
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auto newMem = (char*)Star::malloc(newCapacity);
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if (!newMem)
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2023-06-27 10:23:44 +00:00
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throw MemoryException::format("Could not set new ByteArray capacity {}\n", newCapacity);
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2023-06-20 04:33:09 +00:00
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m_data = newMem;
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m_capacity = newCapacity;
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} else {
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newCapacity = max({m_capacity * 2, newCapacity, (size_t)8});
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auto newMem = (char*)Star::realloc(m_data, newCapacity);
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if (!newMem)
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2023-06-27 10:23:44 +00:00
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throw MemoryException::format("Could not set new ByteArray capacity {}\n", newCapacity);
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2023-06-20 04:33:09 +00:00
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m_data = newMem;
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m_capacity = newCapacity;
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}
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}
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}
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void ByteArray::resize(size_t size, char f) {
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if (m_size == size)
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return;
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size_t oldSize = m_size;
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resize(size);
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for (size_t i = oldSize; i < m_size; ++i)
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(*this)[i] = f;
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}
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void ByteArray::fill(size_t s, char c) {
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if (s != NPos)
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resize(s);
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memset(m_data, c, m_size);
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}
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void ByteArray::fill(char c) {
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fill(NPos, c);
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}
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ByteArray ByteArray::sub(size_t b, size_t s) const {
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if (b == 0 && s >= m_size) {
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return ByteArray(*this);
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} else {
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return ByteArray(m_data + b, min(m_size, b + s));
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}
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}
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ByteArray ByteArray::left(size_t s) const {
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return sub(0, s);
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}
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ByteArray ByteArray::right(size_t s) const {
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if (s > m_size)
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s = 0;
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else
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s = m_size - s;
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return sub(s, m_size);
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}
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void ByteArray::trimLeft(size_t s) {
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if (s >= m_size) {
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clear();
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} else {
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std::memmove(m_data, m_data + s, m_size - s);
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resize(m_size - s);
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}
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}
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void ByteArray::trimRight(size_t s) {
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if (s >= m_size)
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clear();
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else
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resize(m_size - s);
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}
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size_t ByteArray::diffChar(const ByteArray& b) const {
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size_t s = min(m_size, b.size());
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char* ac = m_data;
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char* bc = b.m_data;
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size_t i;
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for (i = 0; i < s; ++i) {
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if (ac[i] != bc[i])
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break;
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}
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return i;
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}
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int ByteArray::compare(const ByteArray& b) const {
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if (m_size == 0 && b.m_size == 0)
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return 0;
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if (m_size == 0)
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return -1;
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if (b.m_size == 0)
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return 1;
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size_t d = diffChar(b);
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if (d == m_size) {
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if (d != b.m_size)
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return -1;
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else
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return 0;
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}
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if (d == b.m_size) {
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if (d != m_size)
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return 1;
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else
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return 0;
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}
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unsigned char c1 = (*this)[d];
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unsigned char c2 = b[d];
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if (c1 < c2) {
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return -1;
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} else if (c1 > c2) {
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return 1;
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} else {
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return 0;
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}
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}
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ByteArray ByteArray::andWith(ByteArray const& rhs, bool extend) {
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return combineWith([](char a, char b) { return a & b; }, rhs, extend);
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}
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ByteArray ByteArray::orWith(ByteArray const& rhs, bool extend) {
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return combineWith([](char a, char b) { return a | b; }, rhs, extend);
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}
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ByteArray ByteArray::xorWith(ByteArray const& rhs, bool extend) {
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return combineWith([](char a, char b) { return a ^ b; }, rhs, extend);
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}
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void ByteArray::insert(size_t pos, char byte) {
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starAssert(pos <= m_size);
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resize(m_size + 1);
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for (size_t i = m_size - 1; i > pos; --i)
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m_data[i] = m_data[i - 1];
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m_data[pos] = byte;
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}
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ByteArray::iterator ByteArray::insert(const_iterator pos, char byte) {
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size_t d = pos - begin();
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insert(d, byte);
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return begin() + d + 1;
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}
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void ByteArray::push_back(char byte) {
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resize(m_size + 1);
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m_data[m_size - 1] = byte;
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}
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bool ByteArray::operator<(const ByteArray& b) const {
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return compare(b) < 0;
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}
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bool ByteArray::operator==(const ByteArray& b) const {
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return compare(b) == 0;
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}
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bool ByteArray::operator!=(const ByteArray& b) const {
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return compare(b) != 0;
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}
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std::ostream& operator<<(std::ostream& os, const ByteArray& b) {
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os << "0x" << hexEncode(b);
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return os;
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}
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}
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