Modify big integer library

third_party/bigint/NumberlikeArray.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 NUMBERLIKEARRAY_H
 #define NUMBERLIKEARRAY_H
 
+#include <stdlib.h> // abort()
 // Make sure we have NULL.
 #ifndef NULL
 #define NULL 0
 #endif
 
 /* A NumberlikeArray<Blk> object holds a heap-allocated array of Blk with a
  * length and a capacity and provides basic memory management features.
  * BigUnsigned and BigUnsignedInABase both subclass it.
  *
  * NumberlikeArray provides no information hiding.  Subclasses should use
@@ skipping 154 matching lines @@
                 Index i;
                 for (i = 0; i < len; i++)
                         if (blk[i] != x.blk[i])
                                 return false;
                 // No blocks differed, so the objects are equal.
                 return true;
         }
 }
 
 #endif