@msgpack/msgpack/dist.cjs/utils/int.cjs

MessagePack for ECMA-262/JavaScript/TypeScript

"use strict";
// Integer Utility
Object.defineProperty(exports, "__esModule", { value: true });
exports.UINT32_MAX = void 0;
exports.setUint64 = setUint64;
exports.setInt64 = setInt64;
exports.getInt64 = getInt64;
exports.getUint64 = getUint64;
exports.UINT32_MAX = 4294967295;
// DataView extension to handle int64 / uint64,
// where the actual range is 53-bits integer (a.k.a. safe integer)
function setUint64(view, offset, value) {
    const high = value / 4294967296;
    const low = value; // high bits are truncated by DataView
    view.setUint32(offset, high);
    view.setUint32(offset + 4, low);
}
function setInt64(view, offset, value) {
    const high = Math.floor(value / 4294967296);
    const low = value; // high bits are truncated by DataView
    view.setUint32(offset, high);
    view.setUint32(offset + 4, low);
}
function getInt64(view, offset) {
    const high = view.getInt32(offset);
    const low = view.getUint32(offset + 4);
    return high * 4294967296 + low;
}
function getUint64(view, offset) {
    const high = view.getUint32(offset);
    const low = view.getUint32(offset + 4);
    return high * 4294967296 + low;
}
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