1 #ifndef PROTOZERO_ITERATORS_HPP 2 #define PROTOZERO_ITERATORS_HPP 22 #if PROTOZERO_BYTE_ORDER != PROTOZERO_LITTLE_ENDIAN 38 template <
typename T,
typename P = std::pair<T, T>>
40 #ifdef PROTOZERO_STRICT_API 53 using value_type =
typename std::iterator_traits<T>::value_type;
98 constexpr
bool empty() const noexcept {
107 std::size_t
size() const noexcept {
108 return static_cast<size_t>(std::distance(
begin(),
end()));
117 protozero_assert(!
empty());
118 return *(this->first);
127 protozero_assert(!
empty());
138 swap(this->first, other.first);
139 swap(this->second, other.second);
150 template <
typename T>
159 template <
typename T>
163 const char* m_data =
nullptr;
169 using iterator_category = std::random_access_iterator_tag;
171 using difference_type = std::ptrdiff_t;
191 std::memcpy(&result, m_data,
sizeof(
value_type));
192 #if PROTOZERO_BYTE_ORDER != PROTOZERO_LITTLE_ENDIAN 221 return lhs.m_data == rhs.m_data;
225 return !(lhs == rhs);
229 return lhs.m_data < rhs.m_data;
273 return static_cast<difference_type
>(lhs.m_data - rhs.m_data) / static_cast<difference_type>(
sizeof(T));
276 value_type operator[](difference_type n)
const noexcept {
288 template <
typename T>
294 const char* m_data =
nullptr;
297 const char* m_end =
nullptr;
303 using iterator_category = std::forward_iterator_tag;
305 using difference_type = std::ptrdiff_t;
318 return std::count_if(
begin.m_data,
end.m_data, [](
char c) noexcept {
319 return (static_cast<unsigned char>(c) & 0x80u) == 0;
339 protozero_assert(m_data);
340 const char* d = m_data;
345 protozero_assert(m_data);
351 protozero_assert(m_data);
362 return !(*
this == rhs);
373 template <
typename T>
380 using iterator_category = std::forward_iterator_tag;
382 using difference_type = std::ptrdiff_t;
403 protozero_assert(this->m_data);
404 const char* d = this->m_data;
409 protozero_assert(this->m_data);
415 protozero_assert(this->m_data);
481 #endif // PROTOZERO_ITERATORS_HPP constexpr iterator cbegin() const noexcept
Return iterator to beginning of range.
Definition: iterators.hpp:84
typename std::iterator_traits< T >::value_type value_type
The value type of the underlying iterator.
Definition: iterators.hpp:53
constexpr int64_t decode_zigzag64(uint64_t value) noexcept
Definition: varint.hpp:199
Definition: iterators.hpp:160
void swap(iterator_range &other) noexcept
Definition: iterators.hpp:136
constexpr bool operator==(const data_view lhs, const data_view rhs) noexcept
Definition: data_view.hpp:176
constexpr iterator begin() const noexcept
Return iterator to beginning of range.
Definition: iterators.hpp:74
T iterator
The type of the iterators in this range.
Definition: iterators.hpp:50
constexpr iterator end() const noexcept
Return iterator to end of range.
Definition: iterators.hpp:79
Definition: iterators.hpp:427
Contains macro checks for different configurations.
constexpr iterator_range(iterator &&first_iterator, iterator &&last_iterator)
Definition: iterators.hpp:68
constexpr bool empty() const noexcept
Definition: iterators.hpp:98
void swap(iterator_range< T > &lhs, iterator_range< T > &rhs) noexcept
Definition: iterators.hpp:151
bool operator<=(const data_view lhs, const data_view rhs) noexcept
Definition: data_view.hpp:208
void skip_varint(const char **data, const char *end)
Definition: varint.hpp:112
bool operator>=(const data_view lhs, const data_view rhs) noexcept
Definition: data_view.hpp:228
void drop_front()
Definition: iterators.hpp:126
const char * m_end
Pointer to end iterator position.
Definition: iterators.hpp:297
std::size_t size() const noexcept
Definition: iterators.hpp:107
const char * m_data
Pointer to current iterator position.
Definition: iterators.hpp:294
bool operator<(const data_view lhs, const data_view rhs) noexcept
Definition: data_view.hpp:198
Contains functions to swap bytes in values (for different endianness).
bool operator>(const data_view lhs, const data_view rhs) noexcept
Definition: data_view.hpp:218
constexpr iterator_range()
Definition: iterators.hpp:58
Definition: iterators.hpp:374
constexpr bool operator!=(const data_view lhs, const data_view rhs) noexcept
Definition: data_view.hpp:188
void byteswap_inplace(uint32_t *ptr) noexcept
byteswap the data pointed to by ptr in-place.
Definition: byteswap.hpp:55
Definition: iterators.hpp:289
Definition: iterators.hpp:39
Contains low-level varint and zigzag encoding and decoding functions.
value_type front() const
Definition: iterators.hpp:116
uint64_t decode_varint(const char **data, const char *end)
Definition: varint.hpp:89
constexpr iterator cend() const noexcept
Return iterator to end of range.
Definition: iterators.hpp:89
All parts of the protozero header-only library are in this namespace.
Definition: byteswap.hpp:23