diff options
author | Wim <wim@42.be> | 2022-11-27 00:42:16 +0100 |
---|---|---|
committer | GitHub <noreply@github.com> | 2022-11-27 00:42:16 +0100 |
commit | 4fd0a7672777f0ed15692ae2ba47838208537558 (patch) | |
tree | b119834a8b9ee78aa8f1b2ad05efa7da50516cbf /vendor/lukechampine.com/uint128/uint128.go | |
parent | 6da9d567dc9195e9a5211f23a6795a41f56a1bfc (diff) | |
download | matterbridge-msglm-4fd0a7672777f0ed15692ae2ba47838208537558.tar.gz matterbridge-msglm-4fd0a7672777f0ed15692ae2ba47838208537558.tar.bz2 matterbridge-msglm-4fd0a7672777f0ed15692ae2ba47838208537558.zip |
Update dependencies (#1929)
Diffstat (limited to 'vendor/lukechampine.com/uint128/uint128.go')
-rw-r--r-- | vendor/lukechampine.com/uint128/uint128.go | 25 |
1 files changed, 24 insertions, 1 deletions
diff --git a/vendor/lukechampine.com/uint128/uint128.go b/vendor/lukechampine.com/uint128/uint128.go index 0b74b9fc..04e65783 100644 --- a/vendor/lukechampine.com/uint128/uint128.go +++ b/vendor/lukechampine.com/uint128/uint128.go @@ -2,6 +2,8 @@ package uint128 // import "lukechampine.com/uint128" import ( "encoding/binary" + "errors" + "fmt" "math" "math/big" "math/bits" @@ -385,6 +387,21 @@ func (u Uint128) Big() *big.Int { return i } +// Scan implements fmt.Scanner. +func (u *Uint128) Scan(s fmt.ScanState, ch rune) error { + i := new(big.Int) + if err := i.Scan(s, ch); err != nil { + return err + } else if i.Sign() < 0 { + return errors.New("value cannot be negative") + } else if i.BitLen() > 128 { + return errors.New("value overflows Uint128") + } + u.Lo = i.Uint64() + u.Hi = i.Rsh(i, 64).Uint64() + return nil +} + // New returns the Uint128 value (lo,hi). func New(lo, hi uint64) Uint128 { return Uint128{lo, hi} @@ -412,6 +429,12 @@ func FromBig(i *big.Int) (u Uint128) { panic("value overflows Uint128") } u.Lo = i.Uint64() - u.Hi = new(big.Int).Rsh(i, 64).Uint64() + u.Hi = i.Rsh(i, 64).Uint64() return u } + +// FromString parses s as a Uint128 value. +func FromString(s string) (u Uint128, err error) { + _, err = fmt.Sscan(s, &u) + return +} |