function shouldBe(actual, expected) {
    if (actual !== expected)
        throw new Error('bad value: ' + actual);
}

function above(a, trap) {
    let result = 0;
    for (let i = 0; (a >>> 0) > (i >>> 0); ++i) {
        result += i;
        if (i === trap)
            break;
    }
    return result;
}
noInline(above);

function aboveOrEqual(a, trap) {
    let result = 0;
    for (let i = 0; (a >>> 0) >= (i >>> 0); ++i) {
        result += i;
        if (i === trap)
            break;
    }
    return result;
}
noInline(aboveOrEqual);

function below(a, trap) {
    let result = 0;
    for (let i = 0; (i >>> 0) < (a >>> 0); ++i) {
        result += i;
        if (i === trap)
            break;
    }
    return result;
}
noInline(below);

function belowOrEqual(a, trap) {
    let result = 0;
    for (let i = 0; (i >>> 0) <= (a >>> 0); ++i) {
        result += i;
        if (i === trap)
            break;
    }
    return result;
}
noInline(belowOrEqual);

function notAbove(a, trap) {
    let result = 0;
    for (let i = 0; (a >>> 0) > (i >>> 0) && a; ++i) {
        result += i;
        if (i === trap)
            break;
    }
    return result;
}
noInline(notAbove);

function notAboveOrEqual(a, trap) {
    let result = 0;
    for (let i = 0; (a >>> 0) >= (i >>> 0) && a; ++i) {
        result += i;
        if (i === trap)
            break;
    }
    return result;
}
noInline(notAboveOrEqual);

function notBelow(a, trap) {
    let result = 0;
    for (let i = 0; (i >>> 0) < (a >>> 0) && a; ++i) {
        result += i;
        if (i === trap)
            break;
    }
    return result;
}
noInline(notBelow);

function notBelowOrEqual(a, trap) {
    let result = 0;
    for (let i = 0; (i >>> 0) <= (a >>> 0) && a; ++i) {
        result += i;
        if (i === trap)
            break;
    }
    return result;
}
noInline(notBelowOrEqual);

for (var i = 0; i < 1e2; ++i) {
    shouldBe(above(0, -1), 0);
    shouldBe(above(20000, -1), 199990000);
    shouldBe(above(-1, 10000), 50005000);
}

for (var i = 0; i < 1e2; ++i) {
    shouldBe(aboveOrEqual(0, -1), 0);
    shouldBe(aboveOrEqual(20000, -1), 200010000);
    shouldBe(aboveOrEqual(-1, 10000), 50005000);
}

for (var i = 0; i < 1e2; ++i) {
    shouldBe(below(0, -1), 0);
    shouldBe(below(20000, -1), 199990000);
    shouldBe(below(-1, 10000), 50005000);
}

for (var i = 0; i < 1e2; ++i) {
    shouldBe(belowOrEqual(0, -1), 0);
    shouldBe(belowOrEqual(20000, -1), 200010000);
    shouldBe(belowOrEqual(-1, 10000), 50005000);
}

for (var i = 0; i < 1e2; ++i) {
    shouldBe(notAbove(0, -1), 0);
    shouldBe(notAbove(20000, -1), 199990000);
    shouldBe(notAbove(-1, 10000), 50005000);
}

for (var i = 0; i < 1e2; ++i) {
    shouldBe(notAboveOrEqual(0, -1), 0);
    shouldBe(notAboveOrEqual(20000, -1), 200010000);
    shouldBe(notAboveOrEqual(-1, 10000), 50005000);
}

for (var i = 0; i < 1e2; ++i) {
    shouldBe(notBelow(0, -1), 0);
    shouldBe(notBelow(20000, -1), 199990000);
    shouldBe(notBelow(-1, 10000), 50005000);
}

for (var i = 0; i < 1e2; ++i) {
    shouldBe(notBelowOrEqual(0, -1), 0);
    shouldBe(notBelowOrEqual(20000, -1), 200010000);
    shouldBe(notBelowOrEqual(-1, 10000), 50005000);
}