🐛 fix(mul): Respect @aureooms/js-integer-big-endian limits on base.

Author: make-github-pseudonymous-again

src/_limits.js

@@ -2,4 +2,4 @@
 export const MAX_NUMBER = Math.pow(2,53) - 1 ;
 export const MIN_NUMBER = -Math.pow(2,53) ;
 export const MIN_BASE = 2 ;
-export const MAX_BASE = Math.ceil(Math.sqrt(MAX_NUMBER+1)) | 0;
+export const MAX_BASE = Math.floor(Math.sqrt(MAX_NUMBER+1)) | 0;

test/src/integer/bugs/mul.js

@@ -0,0 +1,12 @@
+import test from 'ava' ;
+
+import { parse , stringify , mul } from '../../../../src' ;
+
+test ( 'mul handles overflow' , t => {
+	const X = '81129639699425365877808850315535' ;
+	const expected = '6582018437758576371414942707515558118625242782831331069062336225'
+    const x = parse( X ) ;
+    const r = mul( x , x ) ;
+    t.is( X , stringify( x ) ) ;
+    t.is( expected , stringify( r ) ) ;
+} )