Modify big integer library

third_party/bigint/BigUnsignedInABase.hh

+// Copyright 2014 PDFium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Original code by Matt McCutchen, see the LICENSE file.
+
 #ifndef BIGUNSIGNEDINABASE_H
 #define BIGUNSIGNEDINABASE_H
 
 #include "NumberlikeArray.hh"
 #include "BigUnsigned.hh"
 #include <string>
 
 /*
  * A BigUnsignedInABase object represents a nonnegative integer of size limited
  * only by available memory, represented in a user-specified base that can fit
@@ skipping 82 matching lines @@
          */
         operator std::string() const;
         BigUnsignedInABase(const std::string &s, Base base);
 
 public:
 
         // ACCESSORS
         Base getBase() const { return base; }
 
         // Expose these from NumberlikeArray directly.
-        NumberlikeArray<Digit>::getCapacity;
-        NumberlikeArray<Digit>::getLength;
+        using NumberlikeArray<Digit>::getCapacity;
+        using NumberlikeArray<Digit>::getLength;
 
         /* Returns the requested digit, or 0 if it is beyond the length (as if
          * the number had 0s infinitely to the left). */
         Digit getDigit(Index i) const { return i >= len ? 0 : blk[i]; }
 
         // The number is zero if and only if the canonical length is zero.
         bool isZero() const { return NumberlikeArray<Digit>::isEmpty(); }
 
         /* Equality test.  For the purposes of this test, two BigUnsignedInABase
          * values must have the same base to be equal. */ 
         bool operator ==(const BigUnsignedInABase &x) const {
                 return base == x.base && NumberlikeArray<Digit>::operator ==(x);
         }
         bool operator !=(const BigUnsignedInABase &x) const { return !operator ==(x); }
 
 };
 
 #endif