class PiecewiseCombiner
Defined at line 104 of file ../../third_party/abseil-cpp/absl/hash/internal/hash.h
PiecewiseCombiner
PiecewiseCombiner is an internal-only helper class for hashing a piecewise
buffer of `char` or `unsigned char` as though it were contiguous. This class
provides two methods:
H add_buffer(state, data, size)
H finalize(state)
`add_buffer` can be called zero or more times, followed by a single call to
`finalize`. This will produce the same hash expansion as concatenating each
buffer piece into a single contiguous buffer, and passing this to
`H::combine_contiguous`.
Example usage:
PiecewiseCombiner combiner;
for (const auto
&
piece : pieces) {
state = combiner.add_buffer(std::move(state), piece.data, piece.size);
}
return combiner.finalize(std::move(state));
Public Methods
void PiecewiseCombiner ()Defined at line 106 of file ../../third_party/abseil-cpp/absl/hash/internal/hash.h
void PiecewiseCombiner (const PiecewiseCombiner & )Defined at line 107 of file ../../third_party/abseil-cpp/absl/hash/internal/hash.h
PiecewiseCombiner & operator= (const PiecewiseCombiner & )Defined at line 108 of file ../../third_party/abseil-cpp/absl/hash/internal/hash.h
template <typename H>H add_buffer (H state, const char * data, size_t size)Defined at line 117 of file ../../third_party/abseil-cpp/absl/hash/internal/hash.h
template <typename H>H add_buffer (H state, const unsigned char * data, size_t size)HashStateBase::PiecewiseCombiner::add_buffer()
Defined at line 1333 of file ../../third_party/abseil-cpp/absl/hash/internal/hash.h
template <typename H>H finalize (H state)HashStateBase::PiecewiseCombiner::finalize()
Defined at line 1366 of file ../../third_party/abseil-cpp/absl/hash/internal/hash.h