util

func BytesToHex ¶

func BytesToHex(bytes []byte) string

BytesToHex converts a byte slice to a hex string with a leading 0x

func Float64ToU8 ¶ added in v1.6.2

func Float64ToU8(u float64) (uint8, error)

func IntToU16 ¶ added in v1.6.0

func IntToU16(u int) (uint16, error)

func IntToU32 ¶ added in v1.6.0

func IntToU32(u int) (uint32, error)

func IntToU64 ¶ added in v1.6.0

func IntToU64(u int) (uint64, error)

func IntToU8 ¶ added in v1.6.0

func IntToU8(u int) (uint8, error)

func IntToUBigInt ¶ added in v1.6.0

func IntToUBigInt(u int) (*big.Int, error)

func ParseHex ¶

func ParseHex(hexStr string) ([]byte, error)

ParseHex Convenience function to deal with 0x at the beginning of hex strings

func Sha3256Hash ¶

func Sha3256Hash(bytes [][]byte) []byte

Sha3256Hash hashes the input bytes using SHA3-256

func StrToBigInt ¶

func StrToBigInt(val string) (*big.Int, error)

StrToBigInt converts a string to a big.Int for u128 and u256 values

func StrToUint64 ¶

func StrToUint64(s string) (uint64, error)

StrToUint64 converts a string to a uint64

func Uint32ToU8 ¶ added in v1.6.0

func Uint32ToU8(u uint32) (uint8, error)

func UintToU16 ¶ added in v1.6.0

func UintToU16(u uint) (uint16, error)

func UintToU32 ¶ added in v1.6.0

func UintToU32(u uint) (uint32, error)

func UintToU8 ¶ added in v1.6.0

func UintToU8(u uint) (uint8, error)

func UintToUBigInt ¶ added in v1.6.0

func UintToUBigInt(u uint) (*big.Int, error)