Bug 104145 – Number.prototype.{toPrecision,toExponential} should accept out-of-range input for NaN/Infinity

• Status: RESOLVED
• Resolution: WORKSFORME
• Component: JavaScriptCore

[André Bargull]

Steps to reproduce:

Test case:
---
js> Number.prototype.toExponential.call(NaN, 555)
typein:63: RangeError: precision 555 out of range
js> Number.prototype.toPrecision.call(NaN, 555)
typein:64: RangeError: precision 555 out of range
---



Expected results:

According to [15.7.4.6  Number.prototype.toExponential (fractionDigits)] step 4 resp. step 6 and according to [15.7.4.7  Number.prototype.toPrecision (precision)] step 4 resp. step 7, toExponential()/toPrecision() return "NaN" (or "Infinity") if the this-argument is `NaN` (or `Infinity`). The actual range check on the input argument happens after (!) handling `NaN`/`Infinity`.

[André Bargull]

Does no longer reproduce at r215724.