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tz: add comments to public functions

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Signed-off-by: Evgenii Stratonikov <evgeniy@nspcc.ru>
This commit is contained in:
Evgenii Stratonikov 2022-03-09 17:01:58 +03:00 committed by Alex Vanin
parent 0d764a51b7
commit 83ba541725
1 changed files with 5 additions and 0 deletions
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5
tz/digest.go
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@ -33,6 +33,7 @@ func Sum(data []byte) [Size]byte {
return d.checkSum() return d.checkSum()
} }
// Sum implements hash.Hash.
func (d *digest) Sum(in []byte) []byte { func (d *digest) Sum(in []byte) []byte {
// Make a copy of d so that caller can keep writing and summing. // Make a copy of d so that caller can keep writing and summing.
d0 := *d d0 := *d
@ -56,6 +57,7 @@ func (d *digest) checkSum() (b [Size]byte) {
return return
} }
// Reset implements hash.Hash.
func (d *digest) Reset() { func (d *digest) Reset() {
d.x[0] = GF127{1, 0} d.x[0] = GF127{1, 0}
d.x[1] = GF127{0, 0} d.x[1] = GF127{0, 0}
@ -63,6 +65,7 @@ func (d *digest) Reset() {
d.x[3] = GF127{1, 0} d.x[3] = GF127{1, 0}
} }
// Write implements hash.Hash.
func (d *digest) Write(data []byte) (n int, err error) { func (d *digest) Write(data []byte) (n int, err error) {
return write(d, data) return write(d, data)
} }
@ -83,10 +86,12 @@ func writeGeneric(d *digest, data []byte) (n int, err error) {
return return
} }
// Size implements hash.Hash.
func (d *digest) Size() int { func (d *digest) Size() int {
return Size return Size
} }
// BlockSize implements hash.Hash.
func (d *digest) BlockSize() int { func (d *digest) BlockSize() int {
return hashBlockSize return hashBlockSize
} }