1 // Copyright 2015 The Chromium Authors 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef BASE_IOS_NS_ERROR_UTIL_H_ 6 #define BASE_IOS_NS_ERROR_UTIL_H_ 7 8 @class NSError; 9 10 namespace base { 11 namespace ios { 12 13 // Iterates through |error|'s underlying errors and returns the first error for 14 // which there is no underlying error. 15 NSError* GetFinalUnderlyingErrorFromError(NSError* error); 16 17 // Returns a copy of |original_error| with |underlying_error| appended to the 18 // end of its underlying error chain. 19 NSError* ErrorWithAppendedUnderlyingError(NSError* original_error, 20 NSError* underlying_error); 21 22 } // namespace ios 23 } // namespace base 24 25 #endif // BASE_IOS_NS_ERROR_UTIL_H_ 26