| /* | 
 |  *  Copyright 2015 The WebRTC Project Authors. All rights reserved. | 
 |  * | 
 |  *  Use of this source code is governed by a BSD-style license | 
 |  *  that can be found in the LICENSE file in the root of the source | 
 |  *  tree. An additional intellectual property rights grant can be found | 
 |  *  in the file PATENTS.  All contributing project authors may | 
 |  *  be found in the AUTHORS file in the root of the source tree. | 
 |  */ | 
 |  | 
 | #include "rtc_base/crypt_string.h" | 
 |  | 
 | namespace rtc { | 
 |  | 
 | size_t EmptyCryptStringImpl::GetLength() const { | 
 |   return 0; | 
 | } | 
 |  | 
 | void EmptyCryptStringImpl::CopyTo(char* dest, bool nullterminate) const { | 
 |   if (nullterminate) { | 
 |     *dest = '\0'; | 
 |   } | 
 | } | 
 |  | 
 | std::string EmptyCryptStringImpl::UrlEncode() const { | 
 |   return ""; | 
 | } | 
 |  | 
 | CryptStringImpl* EmptyCryptStringImpl::Copy() const { | 
 |   return new EmptyCryptStringImpl(); | 
 | } | 
 |  | 
 | void EmptyCryptStringImpl::CopyRawTo(std::vector<unsigned char>* dest) const { | 
 |   dest->clear(); | 
 | } | 
 |  | 
 | CryptString::CryptString() : impl_(new EmptyCryptStringImpl()) {} | 
 |  | 
 | CryptString::CryptString(const CryptString& other) | 
 |     : impl_(other.impl_->Copy()) {} | 
 |  | 
 | CryptString::CryptString(const CryptStringImpl& impl) : impl_(impl.Copy()) {} | 
 |  | 
 | CryptString::~CryptString() = default; | 
 |  | 
 | }  // namespace rtc |