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function f (x) {
return x >> 0;
}
var table = [
[NaN, 0],
[Infinity, 0],
[-Infinity, 0],
[0, 0],
[-0, 0],
[15, 15],
[-15, -15],
[0x80000000, -0x80000000],
[-0x80000000, -0x80000000],
[0xffffffff, -1],
[-0xffffffff, 1],
[0x7fffffff, 0x7fffffff],
[-0x7fffffff, -0x7fffffff]
]
for (var i = 0; i < table.length; i++) {
assertEq(f(table[i][0]), table[i][1]);
}