1 /** 2 * @file stream_util.h 3 * C++ stream utility 4 * 5 * @remark Copyright 2003 OProfile authors 6 * @remark Read the file COPYING 7 * 8 * @author Philippe Elie 9 * @author John Levon 10 */ 11 12 #ifndef STREAM_UTIL_H 13 #define STREAM_UTIL_H 14 15 #include <iostream> 16 17 /// class which save a stream state and restore it at dtor time 18 class io_state { 19 public: 20 /** 21 * save the stream flags, precision and fill char. 22 * 23 * width is restored at end of expression, there is no need to save it. 24 * tie and locale are not saved currently 25 * 26 * error state shouldn't be saved. 27 */ 28 io_state(std::ios & stream); 29 /// restore the stream state 30 ~io_state(); 31 private: 32 std::ios & stream; 33 34 std::ios::fmtflags format; 35 std::streamsize precision; 36 char fill; 37 }; 38 39 #endif /* !STREAM_UTIL_H */ 40
