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// Copyright © 2020 rsiddharth <s@ricketyspace.net>
// SPDX-License-Identifier: ISC
package enc
// Adapted from
// https://go.googlesource.com/go/+/refs/tags/go1.15/src/encoding/hex/hex.go#83
func HexCharToDec(c byte) uint16 {
switch {
case '0' <= c && c <= '9':
return uint16(c - '0')
case 'a' <= c && c <= 'f':
return uint16(c - 'a' + 10)
}
return 0
}
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