177dc872c5c4ae67e051d1bf7edf96ce36c7b9be2David 'Digit' Turner/* 277dc872c5c4ae67e051d1bf7edf96ce36c7b9be2David 'Digit' Turner * Copyright (c) 1999 377dc872c5c4ae67e051d1bf7edf96ce36c7b9be2David 'Digit' Turner * Silicon Graphics Computer Systems, Inc. 477dc872c5c4ae67e051d1bf7edf96ce36c7b9be2David 'Digit' Turner * 577dc872c5c4ae67e051d1bf7edf96ce36c7b9be2David 'Digit' Turner * Copyright (c) 1999 677dc872c5c4ae67e051d1bf7edf96ce36c7b9be2David 'Digit' Turner * Boris Fomitchev 777dc872c5c4ae67e051d1bf7edf96ce36c7b9be2David 'Digit' Turner * 877dc872c5c4ae67e051d1bf7edf96ce36c7b9be2David 'Digit' Turner * This material is provided "as is", with absolutely no warranty expressed 977dc872c5c4ae67e051d1bf7edf96ce36c7b9be2David 'Digit' Turner * or implied. Any use is at your own risk. 1077dc872c5c4ae67e051d1bf7edf96ce36c7b9be2David 'Digit' Turner * 1177dc872c5c4ae67e051d1bf7edf96ce36c7b9be2David 'Digit' Turner * Permission to use or copy this software for any purpose is hereby granted 1277dc872c5c4ae67e051d1bf7edf96ce36c7b9be2David 'Digit' Turner * without fee, provided the above notices are retained on all copies. 1377dc872c5c4ae67e051d1bf7edf96ce36c7b9be2David 'Digit' Turner * Permission to modify the code and to distribute modified code is granted, 1477dc872c5c4ae67e051d1bf7edf96ce36c7b9be2David 'Digit' Turner * provided the above notices are retained, and a notice that the code was 1577dc872c5c4ae67e051d1bf7edf96ce36c7b9be2David 'Digit' Turner * modified is included with the above copyright notice. 1677dc872c5c4ae67e051d1bf7edf96ce36c7b9be2David 'Digit' Turner * 1777dc872c5c4ae67e051d1bf7edf96ce36c7b9be2David 'Digit' Turner */ 1877dc872c5c4ae67e051d1bf7edf96ce36c7b9be2David 'Digit' Turner 1977dc872c5c4ae67e051d1bf7edf96ce36c7b9be2David 'Digit' Turner// This header defines two streambufs: 2077dc872c5c4ae67e051d1bf7edf96ce36c7b9be2David 'Digit' Turner// stdio_istreambuf, a read-only streambuf synchronized with a C stdio 2177dc872c5c4ae67e051d1bf7edf96ce36c7b9be2David 'Digit' Turner// FILE object 2277dc872c5c4ae67e051d1bf7edf96ce36c7b9be2David 'Digit' Turner// stdio_ostreambuf, a write-only streambuf synchronized with a C stdio 2377dc872c5c4ae67e051d1bf7edf96ce36c7b9be2David 'Digit' Turner// FILE object. 2477dc872c5c4ae67e051d1bf7edf96ce36c7b9be2David 'Digit' Turner// Note that neither stdio_istreambuf nor stdio_ostreambuf is a template; 2577dc872c5c4ae67e051d1bf7edf96ce36c7b9be2David 'Digit' Turner// both classes are derived from basic_streambuf<char, char_traits<char> >. 2677dc872c5c4ae67e051d1bf7edf96ce36c7b9be2David 'Digit' Turner 2777dc872c5c4ae67e051d1bf7edf96ce36c7b9be2David 'Digit' Turner// Note: the imbue() member function is a no-op. In particular, these 2877dc872c5c4ae67e051d1bf7edf96ce36c7b9be2David 'Digit' Turner// classes assume that codecvt<char, char, mbstate_t> is always an identity 2977dc872c5c4ae67e051d1bf7edf96ce36c7b9be2David 'Digit' Turner// transformation. This is true of the default locale, and of all locales 3077dc872c5c4ae67e051d1bf7edf96ce36c7b9be2David 'Digit' Turner// defined for the C I/O library. If you need to use a locale where 3177dc872c5c4ae67e051d1bf7edf96ce36c7b9be2David 'Digit' Turner// the codecvt<char, char, mbstate_t> facet performs a nontrivial 3277dc872c5c4ae67e051d1bf7edf96ce36c7b9be2David 'Digit' Turner// conversion, then you should use basic_filebuf<> instead of stdio_istreambuf 3377dc872c5c4ae67e051d1bf7edf96ce36c7b9be2David 'Digit' Turner// or stdio_ostreambuf. (If you don't understand what any of this means, 3477dc872c5c4ae67e051d1bf7edf96ce36c7b9be2David 'Digit' Turner// then it's not a feature you need to worry about. Locales where 3577dc872c5c4ae67e051d1bf7edf96ce36c7b9be2David 'Digit' Turner// codecvt<char, char, mbstate_t> does something nontrivial are a rare 3677dc872c5c4ae67e051d1bf7edf96ce36c7b9be2David 'Digit' Turner// corner case.) 3777dc872c5c4ae67e051d1bf7edf96ce36c7b9be2David 'Digit' Turner 3877dc872c5c4ae67e051d1bf7edf96ce36c7b9be2David 'Digit' Turner 3977dc872c5c4ae67e051d1bf7edf96ce36c7b9be2David 'Digit' Turner#ifndef _STLP_STDIO_STREAMBUF 4077dc872c5c4ae67e051d1bf7edf96ce36c7b9be2David 'Digit' Turner#define _STLP_STDIO_STREAMBUF 4177dc872c5c4ae67e051d1bf7edf96ce36c7b9be2David 'Digit' Turner 4277dc872c5c4ae67e051d1bf7edf96ce36c7b9be2David 'Digit' Turner#include <streambuf> 4377dc872c5c4ae67e051d1bf7edf96ce36c7b9be2David 'Digit' Turner#include <cstdio> // For FILE. 4477dc872c5c4ae67e051d1bf7edf96ce36c7b9be2David 'Digit' Turner 4577dc872c5c4ae67e051d1bf7edf96ce36c7b9be2David 'Digit' Turner_STLP_BEGIN_NAMESPACE 4677dc872c5c4ae67e051d1bf7edf96ce36c7b9be2David 'Digit' Turner_STLP_MOVE_TO_PRIV_NAMESPACE 4777dc872c5c4ae67e051d1bf7edf96ce36c7b9be2David 'Digit' Turner 4877dc872c5c4ae67e051d1bf7edf96ce36c7b9be2David 'Digit' Turner// Base class for features common to stdio_istreambuf and stdio_ostreambuf 4977dc872c5c4ae67e051d1bf7edf96ce36c7b9be2David 'Digit' Turnerclass stdio_streambuf_base : 5077dc872c5c4ae67e051d1bf7edf96ce36c7b9be2David 'Digit' Turner public basic_streambuf<char, char_traits<char> > /* FILE_basic_streambuf */ { 5177dc872c5c4ae67e051d1bf7edf96ce36c7b9be2David 'Digit' Turnerpublic: // Constructor, destructor. 5277dc872c5c4ae67e051d1bf7edf96ce36c7b9be2David 'Digit' Turner // The argument may not be null. It must be an open file pointer. 5377dc872c5c4ae67e051d1bf7edf96ce36c7b9be2David 'Digit' Turner stdio_streambuf_base(FILE*); 5477dc872c5c4ae67e051d1bf7edf96ce36c7b9be2David 'Digit' Turner 5577dc872c5c4ae67e051d1bf7edf96ce36c7b9be2David 'Digit' Turner // The destructor flushes the stream, but does not close it. 5677dc872c5c4ae67e051d1bf7edf96ce36c7b9be2David 'Digit' Turner ~stdio_streambuf_base(); 5777dc872c5c4ae67e051d1bf7edf96ce36c7b9be2David 'Digit' Turner 5877dc872c5c4ae67e051d1bf7edf96ce36c7b9be2David 'Digit' Turnerprotected: // Virtual functions from basic_streambuf. 5977dc872c5c4ae67e051d1bf7edf96ce36c7b9be2David 'Digit' Turner streambuf* setbuf(char*, streamsize); 6077dc872c5c4ae67e051d1bf7edf96ce36c7b9be2David 'Digit' Turner 6177dc872c5c4ae67e051d1bf7edf96ce36c7b9be2David 'Digit' Turner pos_type seekoff(off_type, ios_base::seekdir, 6277dc872c5c4ae67e051d1bf7edf96ce36c7b9be2David 'Digit' Turner ios_base::openmode 6377dc872c5c4ae67e051d1bf7edf96ce36c7b9be2David 'Digit' Turner = ios_base::in | ios_base::out); 6477dc872c5c4ae67e051d1bf7edf96ce36c7b9be2David 'Digit' Turner pos_type seekpos(pos_type, 6577dc872c5c4ae67e051d1bf7edf96ce36c7b9be2David 'Digit' Turner ios_base::openmode 6677dc872c5c4ae67e051d1bf7edf96ce36c7b9be2David 'Digit' Turner = ios_base::in | ios_base::out); 6777dc872c5c4ae67e051d1bf7edf96ce36c7b9be2David 'Digit' Turner int sync(); 6877dc872c5c4ae67e051d1bf7edf96ce36c7b9be2David 'Digit' Turner 6977dc872c5c4ae67e051d1bf7edf96ce36c7b9be2David 'Digit' Turnerprotected: 7077dc872c5c4ae67e051d1bf7edf96ce36c7b9be2David 'Digit' Turner FILE* _M_file; 7177dc872c5c4ae67e051d1bf7edf96ce36c7b9be2David 'Digit' Turner}; 7277dc872c5c4ae67e051d1bf7edf96ce36c7b9be2David 'Digit' Turner 7377dc872c5c4ae67e051d1bf7edf96ce36c7b9be2David 'Digit' Turnerclass stdio_istreambuf : public stdio_streambuf_base { 7477dc872c5c4ae67e051d1bf7edf96ce36c7b9be2David 'Digit' Turnerpublic: // Constructor, destructor. 7577dc872c5c4ae67e051d1bf7edf96ce36c7b9be2David 'Digit' Turner stdio_istreambuf(FILE* __f) : stdio_streambuf_base(__f) {} 7677dc872c5c4ae67e051d1bf7edf96ce36c7b9be2David 'Digit' Turner ~stdio_istreambuf(); 7777dc872c5c4ae67e051d1bf7edf96ce36c7b9be2David 'Digit' Turner 7877dc872c5c4ae67e051d1bf7edf96ce36c7b9be2David 'Digit' Turnerprotected: // Virtual functions from basic_streambuf. 7977dc872c5c4ae67e051d1bf7edf96ce36c7b9be2David 'Digit' Turner streamsize showmanyc(); 8077dc872c5c4ae67e051d1bf7edf96ce36c7b9be2David 'Digit' Turner int_type underflow(); 8177dc872c5c4ae67e051d1bf7edf96ce36c7b9be2David 'Digit' Turner int_type uflow(); 8277dc872c5c4ae67e051d1bf7edf96ce36c7b9be2David 'Digit' Turner virtual int_type pbackfail(int_type c = traits_type::eof()); 8377dc872c5c4ae67e051d1bf7edf96ce36c7b9be2David 'Digit' Turner}; 8477dc872c5c4ae67e051d1bf7edf96ce36c7b9be2David 'Digit' Turner 8577dc872c5c4ae67e051d1bf7edf96ce36c7b9be2David 'Digit' Turnerclass stdio_ostreambuf : public stdio_streambuf_base { 8677dc872c5c4ae67e051d1bf7edf96ce36c7b9be2David 'Digit' Turnerpublic: // Constructor, destructor. 8777dc872c5c4ae67e051d1bf7edf96ce36c7b9be2David 'Digit' Turner stdio_ostreambuf(FILE* __f) : stdio_streambuf_base(__f) {} 8877dc872c5c4ae67e051d1bf7edf96ce36c7b9be2David 'Digit' Turner ~stdio_ostreambuf(); 8977dc872c5c4ae67e051d1bf7edf96ce36c7b9be2David 'Digit' Turner 9077dc872c5c4ae67e051d1bf7edf96ce36c7b9be2David 'Digit' Turnerprotected: // Virtual functions from basic_streambuf. 9177dc872c5c4ae67e051d1bf7edf96ce36c7b9be2David 'Digit' Turner streamsize showmanyc(); 9277dc872c5c4ae67e051d1bf7edf96ce36c7b9be2David 'Digit' Turner int_type overflow(int_type c = traits_type::eof()); 9377dc872c5c4ae67e051d1bf7edf96ce36c7b9be2David 'Digit' Turner}; 9477dc872c5c4ae67e051d1bf7edf96ce36c7b9be2David 'Digit' Turner 9577dc872c5c4ae67e051d1bf7edf96ce36c7b9be2David 'Digit' Turner_STLP_MOVE_TO_STD_NAMESPACE 9677dc872c5c4ae67e051d1bf7edf96ce36c7b9be2David 'Digit' Turner_STLP_END_NAMESPACE 9777dc872c5c4ae67e051d1bf7edf96ce36c7b9be2David 'Digit' Turner 9877dc872c5c4ae67e051d1bf7edf96ce36c7b9be2David 'Digit' Turner#endif /* _STLP_STDIO_STREAMBUF */ 9977dc872c5c4ae67e051d1bf7edf96ce36c7b9be2David 'Digit' Turner 10077dc872c5c4ae67e051d1bf7edf96ce36c7b9be2David 'Digit' Turner// Local Variables: 10177dc872c5c4ae67e051d1bf7edf96ce36c7b9be2David 'Digit' Turner// mode:C++ 10277dc872c5c4ae67e051d1bf7edf96ce36c7b9be2David 'Digit' Turner// End: 103