lib: fix BN v5/v4 interoperability issue (#248)

indutny · May 20, 2020 · b31c2c3 · b31c2c3
1 parent c69b4ae
commit b31c2c3
Showing 1 changed file with 7 additions and 1 deletion.
diff --git a/lib/bn.js b/lib/bn.js
@@ -2972,7 +2972,13 @@
     } else if (cmp > 0) {
       r.isub(this.p);
     } else {
-      r.strip();
+      if (r.strip !== undefined) {
+        // r is BN v4 instance
+        r.strip();
+      } else {
+        // r is BN v5 instance
+        r._strip();
+      }
     }
 
     return r;