| function f(x) { | |
| return x >>> 0 !== Math.imul(1, x >>> 0); | |
| } | |
| f(0) | |
| assertEq(f(-1),true) | |
| function g(x) { | |
| return 2147483647+x !== Math.imul(1, 2147483647+x); | |
| } | |
| g(0) | |
| assertEq(g(1),true) | |
| function h(x) { | |
| if (2147483647+x !== Math.imul(1, 2147483647+x)) | |
| return true; | |
| return (2147483647+x)|0 | |
| } | |
| h(0) | |
| assertEq(h(1), true) | |
| function i2(x) { | |
| return x === x | |
| } | |
| function i(x) { | |
| return i2(0 / Math.sign(x > 0)) | |
| } | |
| i(1) | |
| assertEq(i(-1), false) |