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const tests = [
[-0x10001n, -2n, 0x20002n],
[-0x10000n, -2n, 0x20000n],
[-0xffffn, -2n, 0x1fffen],
[-0xfffen, -2n, 0x1fffcn],
[-0x8001n, -2n, 0x10002n],
[-0x8000n, -2n, 0x10000n],
[-0x7fffn, -2n, 0xfffen],
[-0x7ffen, -2n, 0xfffcn],
[-2n, -2n, 4n],
[-1n, -2n, 2n],
[0n, -2n, 0n],
[1n, -2n, -2n],
[2n, -2n, -4n],
[0x7ffen, -2n, -0xfffcn],
[0x7fffn, -2n, -0xfffen],
[0x8000n, -2n, -0x10000n],
[0x8001n, -2n, -0x10002n],
[0xfffen, -2n, -0x1fffcn],
[0xffffn, -2n, -0x1fffen],
[0x10000n, -2n, -0x20000n],
[0x10001n, -2n, -0x20002n],
[-0x7fffffffn, -1n, 0x7fffffffn],
[-0x7ffffffen, -1n, 0x7ffffffen],
[-0x10001n, -1n, 0x10001n],
[-0x10000n, -1n, 0x10000n],
[-0xffffn, -1n, 0xffffn],
[-0xfffen, -1n, 0xfffen],
[-0x8001n, -1n, 0x8001n],
[-0x8000n, -1n, 0x8000n],
[-0x7fffn, -1n, 0x7fffn],
[-0x7ffen, -1n, 0x7ffen],
[-1n, -1n, 1n],
[0n, -1n, 0n],
[1n, -1n, -1n],
[2n, -1n, -2n],
[0x7ffen, -1n, -0x7ffen],
[0x7fffn, -1n, -0x7fffn],
[0x8000n, -1n, -0x8000n],
[0x8001n, -1n, -0x8001n],
[0xfffen, -1n, -0xfffen],
[0xffffn, -1n, -0xffffn],
[0x10000n, -1n, -0x10000n],
[0x10001n, -1n, -0x10001n],
[0x7ffffffen, -1n, -0x7ffffffen],
[0x7fffffffn, -1n, -0x7fffffffn],
[-0x80000000n, 0n, 0n],
[-0x7fffffffn, 0n, 0n],
[-0x7ffffffen, 0n, 0n],
[-0x10001n, 0n, 0n],
[-0x10000n, 0n, 0n],
[-0xffffn, 0n, 0n],
[-0xfffen, 0n, 0n],
[-0x8001n, 0n, 0n],
[-0x8000n, 0n, 0n],
[-0x7fffn, 0n, 0n],
[-0x7ffen, 0n, 0n],
[0n, 0n, 0n],
[1n, 0n, 0n],
[2n, 0n, 0n],
[0x7ffen, 0n, 0n],
[0x7fffn, 0n, 0n],
[0x8000n, 0n, 0n],
[0x8001n, 0n, 0n],
[0xfffen, 0n, 0n],
[0xffffn, 0n, 0n],
[0x10000n, 0n, 0n],
[0x10001n, 0n, 0n],
[0x7ffffffen, 0n, 0n],
[0x7fffffffn, 0n, 0n],
[-0x80000000n, 1n, -0x80000000n],
[-0x7fffffffn, 1n, -0x7fffffffn],
[-0x7ffffffen, 1n, -0x7ffffffen],
[-0x10001n, 1n, -0x10001n],
[-0x10000n, 1n, -0x10000n],
[-0xffffn, 1n, -0xffffn],
[-0xfffen, 1n, -0xfffen],
[-0x8001n, 1n, -0x8001n],
[-0x8000n, 1n, -0x8000n],
[-0x7fffn, 1n, -0x7fffn],
[-0x7ffen, 1n, -0x7ffen],
[1n, 1n, 1n],
[2n, 1n, 2n],
[0x7ffen, 1n, 0x7ffen],
[0x7fffn, 1n, 0x7fffn],
[0x8000n, 1n, 0x8000n],
[0x8001n, 1n, 0x8001n],
[0xfffen, 1n, 0xfffen],
[0xffffn, 1n, 0xffffn],
[0x10000n, 1n, 0x10000n],
[0x10001n, 1n, 0x10001n],
[0x7ffffffen, 1n, 0x7ffffffen],
[0x7fffffffn, 1n, 0x7fffffffn],
[-0x10001n, 2n, -0x20002n],
[-0x10000n, 2n, -0x20000n],
[-0xffffn, 2n, -0x1fffen],
[-0xfffen, 2n, -0x1fffcn],
[-0x8001n, 2n, -0x10002n],
[-0x8000n, 2n, -0x10000n],
[-0x7fffn, 2n, -0xfffen],
[-0x7ffen, 2n, -0xfffcn],
[2n, 2n, 4n],
[0x7ffen, 2n, 0xfffcn],
[0x7fffn, 2n, 0xfffen],
[0x8000n, 2n, 0x10000n],
[0x8001n, 2n, 0x10002n],
[0xfffen, 2n, 0x1fffcn],
[0xffffn, 2n, 0x1fffen],
[0x10000n, 2n, 0x20000n],
[0x10001n, 2n, 0x20002n],
[-0x10001n, 0x7ffen, -0x7ffe7ffen],
[-0x10000n, 0x7ffen, -0x7ffe0000n],
[-0xffffn, 0x7ffen, -0x7ffd8002n],
[-0xfffen, 0x7ffen, -0x7ffd0004n],
[-0x8001n, 0x7ffen, -0x3fff7ffen],
[-0x8000n, 0x7ffen, -0x3fff0000n],
[-0x7fffn, 0x7ffen, -0x3ffe8002n],
[-0x7ffen, 0x7ffen, -0x3ffe0004n],
[0x7ffen, 0x7ffen, 0x3ffe0004n],
[0x7fffn, 0x7ffen, 0x3ffe8002n],
[0x8000n, 0x7ffen, 0x3fff0000n],
[0x8001n, 0x7ffen, 0x3fff7ffen],
[0xfffen, 0x7ffen, 0x7ffd0004n],
[0xffffn, 0x7ffen, 0x7ffd8002n],
[0x10000n, 0x7ffen, 0x7ffe0000n],
[0x10001n, 0x7ffen, 0x7ffe7ffen],
[-0x10001n, 0x7fffn, -0x7fff7fffn],
[-0x10000n, 0x7fffn, -0x7fff0000n],
[-0xffffn, 0x7fffn, -0x7ffe8001n],
[-0xfffen, 0x7fffn, -0x7ffe0002n],
[-0x8001n, 0x7fffn, -0x3fffffffn],
[-0x8000n, 0x7fffn, -0x3fff8000n],
[-0x7fffn, 0x7fffn, -0x3fff0001n],
[-0x7ffen, 0x7fffn, -0x3ffe8002n],
[0x7fffn, 0x7fffn, 0x3fff0001n],
[0x8000n, 0x7fffn, 0x3fff8000n],
[0x8001n, 0x7fffn, 0x3fffffffn],
[0xfffen, 0x7fffn, 0x7ffe0002n],
[0xffffn, 0x7fffn, 0x7ffe8001n],
[0x10000n, 0x7fffn, 0x7fff0000n],
[0x10001n, 0x7fffn, 0x7fff7fffn],
[-0x10000n, 0x8000n, -0x80000000n],
[-0xffffn, 0x8000n, -0x7fff8000n],
[-0xfffen, 0x8000n, -0x7fff0000n],
[-0x8001n, 0x8000n, -0x40008000n],
[-0x8000n, 0x8000n, -0x40000000n],
[-0x7fffn, 0x8000n, -0x3fff8000n],
[-0x7ffen, 0x8000n, -0x3fff0000n],
[0x8000n, 0x8000n, 0x40000000n],
[0x8001n, 0x8000n, 0x40008000n],
[0xfffen, 0x8000n, 0x7fff0000n],
[0xffffn, 0x8000n, 0x7fff8000n],
[-0xfffen, 0x8001n, -0x7ffffffen],
[-0x8001n, 0x8001n, -0x40010001n],
[-0x8000n, 0x8001n, -0x40008000n],
[-0x7fffn, 0x8001n, -0x3fffffffn],
[-0x7ffen, 0x8001n, -0x3fff7ffen],
[0x8001n, 0x8001n, 0x40010001n],
[0xfffen, 0x8001n, 0x7ffffffen],
[-0xfffen, -0x8001n, 0x7ffffffen],
[-0x8001n, -0x8001n, 0x40010001n],
[-0x8000n, -0x8001n, 0x40008000n],
[-0x7fffn, -0x8001n, 0x3fffffffn],
[-0x7ffen, -0x8001n, 0x3fff7ffen],
[0xfffen, -0x8001n, -0x7ffffffen],
[-0xffffn, -0x8000n, 0x7fff8000n],
[-0xfffen, -0x8000n, 0x7fff0000n],
[-0x8000n, -0x8000n, 0x40000000n],
[-0x7fffn, -0x8000n, 0x3fff8000n],
[-0x7ffen, -0x8000n, 0x3fff0000n],
[0xfffen, -0x8000n, -0x7fff0000n],
[0xffffn, -0x8000n, -0x7fff8000n],
[0x10000n, -0x8000n, -0x80000000n],
[-0x10001n, -0x7fffn, 0x7fff7fffn],
[-0x10000n, -0x7fffn, 0x7fff0000n],
[-0xffffn, -0x7fffn, 0x7ffe8001n],
[-0xfffen, -0x7fffn, 0x7ffe0002n],
[-0x7fffn, -0x7fffn, 0x3fff0001n],
[-0x7ffen, -0x7fffn, 0x3ffe8002n],
[0xfffen, -0x7fffn, -0x7ffe0002n],
[0xffffn, -0x7fffn, -0x7ffe8001n],
[0x10000n, -0x7fffn, -0x7fff0000n],
[0x10001n, -0x7fffn, -0x7fff7fffn],
[-0x10001n, -0x7ffen, 0x7ffe7ffen],
[-0x10000n, -0x7ffen, 0x7ffe0000n],
[-0xffffn, -0x7ffen, 0x7ffd8002n],
[-0xfffen, -0x7ffen, 0x7ffd0004n],
[-0x7ffen, -0x7ffen, 0x3ffe0004n],
[0xfffen, -0x7ffen, -0x7ffd0004n],
[0xffffn, -0x7ffen, -0x7ffd8002n],
[0x10000n, -0x7ffen, -0x7ffe0000n],
[0x10001n, -0x7ffen, -0x7ffe7ffen],
];
// Cases not covered above.
tests.push(
// Int32 overflow:
//
// Math.floor(2 ** (Math.log2(2147483648) / 2))
// = Math.floor(2 ** 15.5)
// = 46340
//
// Math.ceil(2 ** (Math.log2(2147483648) / 2))
// = Math.ceil(2 ** 15.5)
// = 46341
[46340n, 46340n, 2147395600n],
[46340n, -46340n, -2147395600n],
[-46340n, -46340n, 2147395600n],
);
function f(tests) {
for (let test of tests) {
let lhs = test[0], rhs = test[1], expected = test[2];
assertEq(BigInt.asIntN(32, lhs), lhs);
assertEq(BigInt.asIntN(32, rhs), rhs);
assertEq(BigInt.asIntN(32, expected), expected);
assertEq(lhs * rhs, expected);
assertEq(rhs * lhs, expected);
}
}
for (let i = 0; i < 10; ++i) {
f(tests);
}