| 1 | var MAX_INT = require('./MAX_INT');
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| 2 |
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| 3 | /**
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| 4 | * "Convert" value into an 31-bit unsigned integer (since 1 bit is used for sign).
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| 5 | * IMPORTANT: value wil wrap at 2^31, if negative will return 0.
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| 6 | */
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| 7 | function toUInt31(val){
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| 8 | // we do not use lang/toNumber because of perf and also because it
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| 9 | // doesn't break the functionality
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| 10 | return (val <= 0)? 0 : (val > MAX_INT? ~~(val % (MAX_INT + 1)) : ~~val);
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| 11 | }
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| 12 |
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| 13 | module.exports = toUInt31;
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| 14 |
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| 15 |
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