36 lines
751 B
Go
36 lines
751 B
Go
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package biginthelper
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import (
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"math/big"
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"regexp"
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"strconv"
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)
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// ParseBigInt 将字符串转换为 big.Int
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func ParseBigInt(value string) *big.Int {
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bi := new(big.Int)
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i, ok := bi.SetString(value, 10)
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if !ok {
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return bi
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}
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return i
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}
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// IntToHex convert int to hexadecimal representation
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// int64转换为16进制字符串
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func IntToHex(i int64) string {
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return strconv.FormatInt(i, 16)
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}
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// BigToHex 将bigint转化为16进制带 0x 的字符串
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func BigToHex(bigInt big.Int) string {
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return "0x" + IntToHex(bigInt.Int64())
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}
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// CheckIsAddress Check is a eth Address
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// 检查是否是以太坊地址 正则匹配
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func CheckIsAddress(addr string) bool {
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re := regexp.MustCompile("^0x[0-9a-fA-F]{40}$")
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return re.MatchString(addr)
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}
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