/*
 * Copyright The OpenTelemetry Authors
 * SPDX-License-Identifier: Apache-2.0
 */
function intValue(charCode) {
    // 0-9
    if (charCode >= 48 && charCode <= 57) {
        return charCode - 48;
    }
    // a-f
    if (charCode >= 97 && charCode <= 102) {
        return charCode - 87;
    }
    // A-F
    return charCode - 55;
}
export function hexToBinary(hexStr) {
    const buf = new Uint8Array(hexStr.length / 2);
    let offset = 0;
    for (let i = 0; i < hexStr.length; i += 2) {
        const hi = intValue(hexStr.charCodeAt(i));
        const lo = intValue(hexStr.charCodeAt(i + 1));
        buf[offset++] = (hi << 4) | lo;
    }
    return buf;
}
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