1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/build/stlport/src/stdio_streambuf.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,102 @@
1.4 +/*
1.5 + * Copyright (c) 1999
1.6 + * Silicon Graphics Computer Systems, Inc.
1.7 + *
1.8 + * Copyright (c) 1999
1.9 + * Boris Fomitchev
1.10 + *
1.11 + * This material is provided "as is", with absolutely no warranty expressed
1.12 + * or implied. Any use is at your own risk.
1.13 + *
1.14 + * Permission to use or copy this software for any purpose is hereby granted
1.15 + * without fee, provided the above notices are retained on all copies.
1.16 + * Permission to modify the code and to distribute modified code is granted,
1.17 + * provided the above notices are retained, and a notice that the code was
1.18 + * modified is included with the above copyright notice.
1.19 + *
1.20 + */
1.21 +
1.22 +// This header defines two streambufs:
1.23 +// stdio_istreambuf, a read-only streambuf synchronized with a C stdio
1.24 +// FILE object
1.25 +// stdio_ostreambuf, a write-only streambuf synchronized with a C stdio
1.26 +// FILE object.
1.27 +// Note that neither stdio_istreambuf nor stdio_ostreambuf is a template;
1.28 +// both classes are derived from basic_streambuf<char, char_traits<char> >.
1.29 +
1.30 +// Note: the imbue() member function is a no-op. In particular, these
1.31 +// classes assume that codecvt<char, char, mbstate_t> is always an identity
1.32 +// transformation. This is true of the default locale, and of all locales
1.33 +// defined for the C I/O library. If you need to use a locale where
1.34 +// the codecvt<char, char, mbstate_t> facet performs a nontrivial
1.35 +// conversion, then you should use basic_filebuf<> instead of stdio_istreambuf
1.36 +// or stdio_ostreambuf. (If you don't understand what any of this means,
1.37 +// then it's not a feature you need to worry about. Locales where
1.38 +// codecvt<char, char, mbstate_t> does something nontrivial are a rare
1.39 +// corner case.)
1.40 +
1.41 +
1.42 +#ifndef _STLP_STDIO_STREAMBUF
1.43 +#define _STLP_STDIO_STREAMBUF
1.44 +
1.45 +#include <streambuf>
1.46 +#include <cstdio> // For FILE.
1.47 +
1.48 +_STLP_BEGIN_NAMESPACE
1.49 +_STLP_MOVE_TO_PRIV_NAMESPACE
1.50 +
1.51 +// Base class for features common to stdio_istreambuf and stdio_ostreambuf
1.52 +class stdio_streambuf_base :
1.53 + public basic_streambuf<char, char_traits<char> > /* FILE_basic_streambuf */ {
1.54 +public: // Constructor, destructor.
1.55 + // The argument may not be null. It must be an open file pointer.
1.56 + stdio_streambuf_base(FILE*);
1.57 +
1.58 + // The destructor flushes the stream, but does not close it.
1.59 + ~stdio_streambuf_base();
1.60 +
1.61 +protected: // Virtual functions from basic_streambuf.
1.62 + streambuf* setbuf(char*, streamsize);
1.63 +
1.64 + pos_type seekoff(off_type, ios_base::seekdir,
1.65 + ios_base::openmode
1.66 + = ios_base::in | ios_base::out);
1.67 + pos_type seekpos(pos_type,
1.68 + ios_base::openmode
1.69 + = ios_base::in | ios_base::out);
1.70 + int sync();
1.71 +
1.72 +protected:
1.73 + FILE* _M_file;
1.74 +};
1.75 +
1.76 +class stdio_istreambuf : public stdio_streambuf_base {
1.77 +public: // Constructor, destructor.
1.78 + stdio_istreambuf(FILE* __f) : stdio_streambuf_base(__f) {}
1.79 + ~stdio_istreambuf();
1.80 +
1.81 +protected: // Virtual functions from basic_streambuf.
1.82 + streamsize showmanyc();
1.83 + int_type underflow();
1.84 + int_type uflow();
1.85 + virtual int_type pbackfail(int_type c = traits_type::eof());
1.86 +};
1.87 +
1.88 +class stdio_ostreambuf : public stdio_streambuf_base {
1.89 +public: // Constructor, destructor.
1.90 + stdio_ostreambuf(FILE* __f) : stdio_streambuf_base(__f) {}
1.91 + ~stdio_ostreambuf();
1.92 +
1.93 +protected: // Virtual functions from basic_streambuf.
1.94 + streamsize showmanyc();
1.95 + int_type overflow(int_type c = traits_type::eof());
1.96 +};
1.97 +
1.98 +_STLP_MOVE_TO_STD_NAMESPACE
1.99 +_STLP_END_NAMESPACE
1.100 +
1.101 +#endif /* _STLP_STDIO_STREAMBUF */
1.102 +
1.103 +// Local Variables:
1.104 +// mode:C++
1.105 +// End:
