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Make Int36 toDecimal() more paranoid (we want perfect output, or no output at all)

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This commit is contained in:
Jeff Parsons 2017-02-18 09:23:45 -08:00 • committed by Jeff Parsons
commit c1ab8918bd
1 changed files with 9 additions and 4 deletions
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13
modules/shared/lib/int36.js
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@ -245,10 +245,10 @@ class Int36 {
do {
i36Tmp.div(i36Div);
/*
* In a perfect world, there would be no errors, because all Int36 calculations would
* involve positive values within their respective ranges, any remainder would always be less
* than the divisor, and the entire process would complete within 3 divisions. But until
* then, let's make sure we don't produce garbage or spin our wheels.
* In a perfect world, there would be no errors, because all Int36 calculations at
* this point should be positive values, the remainder should always be less than the
* divisor, and the entire process should complete within 3 divisions. But until then,
* let's make sure we don't produce garbage or spin our wheels.
*/
if (i36Tmp.error || i36Tmp.remainder >= 10000000000 || !nMaxDivs--) {
s = "error";
@ -259,6 +259,11 @@ class Int36 {
i36Rem.set(i36Tmp.remainder);
do {
i36Rem.divNum(10);
if (i36Rem.remainder < 0 || i36Rem.remainder > 9) {
quotient = 0;
s = "error";
break;
}
s = String.fromCharCode(0x30 + i36Rem.remainder) + s;
} while (--nMinDigits > 0 || i36Rem.value);
} while (quotient);