LLVM: llvm::hashing::detail::hash_state Struct Reference (original) (raw)
The intermediate state used during hashing. More...
#include "[llvm/ADT/Hashing.h](Hashing%5F8h%5Fsource.html)"
| Public Member Functions | |
|---|---|
| void | mix (const char *s) |
| Mix in a 64-byte buffer of data. | |
| uint64_t | finalize (size_t length) |
| Compute the final 64-bit hash code value based on the current state and the length of bytes hashed. |
| Static Public Member Functions | |
|---|---|
| static hash_state | create (const char *s, uint64_t seed) |
| Create a new hash_state structure and initialize it based on the seed and the first 64-byte chunk. | |
| static void | mix_32_bytes (const char *s, uint64_t &a, uint64_t &b) |
| Mix 32-bytes from the input sequence into the 16-bytes of 'a' and 'b', including whatever is already in 'a' and 'b'. |
| Public Attributes | |
|---|---|
| uint64_t | h0 = 0 |
| uint64_t | h1 = 0 |
| uint64_t | h2 = 0 |
| uint64_t | h3 = 0 |
| uint64_t | h4 = 0 |
| uint64_t | h5 = 0 |
| uint64_t | h6 = 0 |
The intermediate state used during hashing.
Currently, the algorithm for computing hash codes is based on CityHash and keeps 56 bytes of arbitrary state.
Definition at line 253 of file Hashing.h.
◆ create()
◆ finalize()
| uint64_t llvm::hashing::detail::hash_state::finalize ( size_t length) | inline |
|---|
◆ mix()
| void llvm::hashing::detail::hash_state::mix ( const char * s) | inline |
|---|
Mix in a 64-byte buffer of data.
We mix all 64 bytes even when the chunk length is smaller, but we record the actual length.
Definition at line 287 of file Hashing.h.
References llvm::hashing::detail::fetch64(), h0, h1, h2, h3, h4, h5, h6, llvm::hashing::detail::k1, mix_32_bytes(), llvm::rotr(), and std::swap().
Referenced by create(), and llvm::hashing::detail::hash_combine_range_impl().
◆ mix_32_bytes()
◆ h0
uint64_t llvm::hashing::detail::hash_state::h0 = 0
◆ h1
uint64_t llvm::hashing::detail::hash_state::h1 = 0
◆ h2
uint64_t llvm::hashing::detail::hash_state::h2 = 0
◆ h3
uint64_t llvm::hashing::detail::hash_state::h3 = 0
◆ h4
uint64_t llvm::hashing::detail::hash_state::h4 = 0
◆ h5
uint64_t llvm::hashing::detail::hash_state::h5 = 0
◆ h6
uint64_t llvm::hashing::detail::hash_state::h6 = 0
The documentation for this struct was generated from the following file:
- include/llvm/ADT/Hashing.h