🐛 fix(cmp): Correct output when both numbers are negative.

Author: make-github-pseudonymous-again

src/Integer.js

@@ -337,7 +337,11 @@ export class Integer {
 		const a = this.limbs ;
 		const b = other._limbs_in_base( this.base ) ;
 
-		return cmp( a , 0 , a.length , b , 0 , b.length ) ;
+		return this.is_negative === 0 ?
+			cmp( a , 0 , a.length , b , 0 , b.length ) :
+			cmp( b , 0 , b.length , a , 0 , a.length ) ;
+
+	}
 
 	}
 

test/src/Integer/compare.js

@@ -4,6 +4,12 @@ import { ZZ } from '../../../src' ;
 
 test( 'compare' , t => {
 
-	t.is( ZZ.from(-1).cmp(ZZ.from(1)) , -1 ) ;
+	t.is( ZZ.from(-1).cmpn(1) , -1 ) ;
+	t.true( ZZ.from(-1).ltn(1) ) ;
+	t.true( ZZ.from(-1).gtn(-2) ) ;
+	t.true( ZZ.from(-1).len(1) ) ;
+	t.true( ZZ.from(-1).len(-1) ) ;
+	t.true( ZZ.from(7).gen(3) ) ;
+	t.true( ZZ.from(13).eqn(13) ) ;
 
 } ) ;