1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
|
// Copyright (C) 2017 Mozilla Corporation. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-atomics.store
description: Test Atomics.store on arrays that allow atomic operations.
includes: [testAtomics.js, testTypedArray.js]
---*/
var sab = new SharedArrayBuffer(1024);
var ab = new ArrayBuffer(16);
var int_views = [Int8Array, Uint8Array, Int16Array, Uint16Array, Int32Array, Uint32Array];
testWithTypedArrayConstructors(function(View) {
// Make it interesting - use non-zero byteOffsets and non-zero indexes.
var view = new View(sab, 32, 20);
var control = new View(ab, 0, 2);
for ( let val of [10,
-5,
12345,
123456789,
Math.PI,
"33",
{ valueOf: () => 33 },
undefined] )
{
assert.sameValue(Atomics.store(view, 3, val), ToInteger(val),
"Atomics.store returns its third argument (" + val + ") converted to Integer, not the input value nor the value that was stored");
control[0] = val;
assert.sameValue(view[3], control[0]);
}
// In-bounds boundary cases for indexing
testWithAtomicsInBoundsIndices(function(IdxGen) {
let Idx = IdxGen(view);
view.fill(0);
Atomics.store(view, Idx, 37);
assert.sameValue(Atomics.load(view, Idx), 37);
});
}, int_views);
function ToInteger(v) {
v = +v;
if (isNaN(v))
return 0;
if (v == 0 || !isFinite(v))
return v;
if (v < 0)
return -Math.floor(Math.abs(v));
return Math.floor(v);
}
|
