diff options
Diffstat (limited to 'absl/crc/internal/crc.h')
| -rw-r--r-- | absl/crc/internal/crc.h | 12 |
1 files changed, 2 insertions, 10 deletions
diff --git a/absl/crc/internal/crc.h b/absl/crc/internal/crc.h index 72515b06..4efdd032 100644 --- a/absl/crc/internal/crc.h +++ b/absl/crc/internal/crc.h @@ -40,9 +40,6 @@ class CRC { public: virtual ~CRC(); - // Place the CRC of the empty string in "*crc" - virtual void Empty(uint32_t* crc) const = 0; - // If "*crc" is the CRC of bytestring A, place the CRC of // the bytestring formed from the concatenation of A and the "length" // bytes at "bytes" into "*crc". @@ -53,22 +50,17 @@ class CRC { // points to an array of "length" zero bytes. virtual void ExtendByZeroes(uint32_t* crc, size_t length) const = 0; - // Inverse opration of ExtendByZeroes. If `crc` is the CRC value of a string + // Inverse operation of ExtendByZeroes. If `crc` is the CRC value of a string // ending in `length` zero bytes, this returns a CRC value of that string // with those zero bytes removed. virtual void UnextendByZeroes(uint32_t* crc, size_t length) const = 0; - // If *px is the CRC (as defined by *crc) of some string X, - // and y is the CRC of some string Y that is ylen bytes long, set - // *px to the CRC of the concatenation of X followed by Y. - virtual void Concat(uint32_t* px, uint32_t y, size_t ylen); - // Apply a non-linear transformation to "*crc" so that // it is safe to CRC the result with the same polynomial without // any reduction of error-detection ability in the outer CRC. // Unscramble() performs the inverse transformation. // It is strongly recommended that CRCs be scrambled before storage or - // transmission, and unscrambled at the other end before futher manipulation. + // transmission, and unscrambled at the other end before further manipulation. virtual void Scramble(uint32_t* crc) const = 0; virtual void Unscramble(uint32_t* crc) const = 0; |