10 examples of 'golang hex to int' in Go

178
func hexToInt(hexStr string) int {
179
	result, _ := strconv.ParseUint(strings.Replace(hexStr, "0x", "", -1), 16, 64)
180
	return int(result)
181
}

110
func hex2int(hexStr string) uint64 {
111
	// remove 0x suffix if found in the input string
112
	cleaned := removeHexSuffix(hexStr)
113
114
	// base 16 for hexadecimal
115
	result, _ := strconv.ParseUint(cleaned, 16, 64)
116
	return result
117
}

243
func hexRunesToInt(b []rune) int {
244
	sum := 0
245
	for i := 0; i < len(b); i++ {
246
		sum += hexToInt(b[i]) << (uint(len(b)-i-1) * 4)
247
	}
248
	return sum
249
}

187
func parseHexUint(v []byte) (n uint64, err error) {
188
	for _, b := range v {
189
		n <<= 4
190
		switch {
191
		case '0' <= b && b <= '9':
192
			b = b - '0'
193
		case 'a' <= b && b <= 'f':
194
			b = b - 'a' + 10
195
		case 'A' <= b && b <= 'F':
196
			b = b - 'A' + 10
197
		default:
198
			return 0, errors.New("invalid byte in chunk length")
199
		}
200
		n |= uint64(b)
201
	}
202
	return
203
}

75
func wire_intToUint(i int64) uint64 {
76
	// signed arithmetic shift
77
	return uint64((i >> 63) ^ (i << 1))
78
}

921
func hexToByte(lo, hi byte) (byte, bool) {
922
	h, ok1 := fromHexChar(hi)
923
	l, ok2 := fromHexChar(lo)
924
	return h<<4 + l, ok1 && ok2
925
}

130
func HexToBigInt(t *testing.T, in string) *big.Int {
131
	s := in[2:]
132
	b, err := hex.DecodeString(s)
133
	require.NoError(t, err)
134
	return big.NewInt(0).SetBytes(b)
135
}

61
func Hex2Bin(s string) string {
62
	bin, err := strconv.ParseInt(s, 16, 64)
63
	if err != nil {
64
		log.Fatal(err)
65
	}
66
	return strconv.FormatInt(bin, 2)
67
}

65
func uintToInt(x uint64) int64 {
66
	i := int64(x >> 1)
67
	if x&1 != 0 {
68
		i = ^i
69
	}
70
	return i
71
}

149
func Int2HexStr(num int) (hex string) {
150
	if num == 0 {
151
		return "0"
152
	}
153
154
	for num > 0 {
155
		r := num % 16
156
157
		c := "?"
158
		if r >= 0 && r <= 9 {
159
			c = string(r + '0')
160
		} else {
161
			c = string(r + 'a' - 10)
162
		}
163
		hex = c + hex
164
		num = num / 16
165
	}
166
	return hex
167
}