1 /* 2 * Copyright 2010, Oliver Tappe, zooey@hirschkaefer.de. 3 * Distributed under the terms of the MIT License. 4 */ 5 #ifndef _ERRNO_MAINTAINER_H 6 #define _ERRNO_MAINTAINER_H 7 8 9 #include <errno.h> 10 11 12 namespace BPrivate { 13 14 15 /** 16 * A helper class resetting errno to 0 if it has been set during the execution 17 * of ICU methods. Any changes of errno shall only be done by our callers. 18 */ 19 class ErrnoMaintainer { 20 public: ErrnoMaintainer()21 ErrnoMaintainer() 22 : fErrnoUponEntry(errno) 23 { 24 } 25 ~ErrnoMaintainer()26 ~ErrnoMaintainer() 27 { 28 errno = fErrnoUponEntry; 29 } 30 31 private: 32 int fErrnoUponEntry; 33 }; 34 35 36 } // namespace BPrivate 37 38 39 #endif // _ERRNO_MAINTAINER_H 40