"use strict";

var ceil = Math.ceil,

random = Math.random;

var BITS_PER_BYTE = 8;

var endianByteNum = function () {

var buf32 = new Uint32Array(1);

var buf8 = new Uint8Array(buf32.buffer);

buf32[0] = 0xff;

return buf8[0] === 0xff ? [2, 3, 4, 5, 6, 7] : [0, 1, 2, 3, 6, 7];

}();

var prngBytes = function prngBytes(count) {

var BYTES_USED_PER_RANDOM_CALL = 6;

var randCount = ceil(count / BYTES_USED_PER_RANDOM_CALL);

var buffer = new ArrayBuffer(count);

var dataView = new DataView(new ArrayBuffer(BITS_PER_BYTE));

for (var rNum = 0; rNum < randCount; rNum += 1) {

dataView.setFloat64(0, random());

for (var n = 0; n < BYTES_USED_PER_RANDOM_CALL; n += 1) {

var fByteNum = endianByteNum[n];

var bByteNum = rNum * BYTES_USED_PER_RANDOM_CALL + n;

if (bByteNum < count) {

buffer[bByteNum] = dataView.getUint8(fByteNum);

}

}

}

return buffer;

};

module.exports = {

prngBytes: prngBytes

};