|  | *  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. | 
|  | #import <Foundation/Foundation.h> | 
|  | @interface NSString (StdString) | 
|  | @property(nonatomic, readonly) std::string stdString; | 
|  | + (std::string)stdStringForString:(NSString *)nsString; | 
|  | + (NSString *)stringForStdString:(const std::string &)stdString; |