@msgpack/msgpack
Version:
MessagePack for JavaScript/ECMA-262
32 lines • 1.18 kB
JavaScript
// DataView extension to handle int64 / uint64,
// where the actual range is 53-bits integer (a.k.a. safe integer)
Object.defineProperty(exports, "__esModule", { value: true });
exports.getUint64 = exports.getInt64 = exports.setInt64 = exports.setUint64 = void 0;
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);
}
exports.setUint64 = setUint64;
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);
}
exports.setInt64 = setInt64;
function getInt64(view, offset) {
const high = view.getInt32(offset);
const low = view.getUint32(offset + 4);
return high * 4294967296 + low;
}
exports.getInt64 = getInt64;
function getUint64(view, offset) {
const high = view.getUint32(offset);
const low = view.getUint32(offset + 4);
return high * 4294967296 + low;
}
exports.getUint64 = getUint64;
//# sourceMappingURL=int.js.map
;