/*
* Copyright (c) 1999
* Silicon Graphics Computer Systems, Inc.
*
* Copyright (c) 1999
* Boris Fomitchev
*
* This material is provided "as is", with absolutely no warranty expressed
* or implied. Any use is at your own risk.
*
* Permission to use or copy this software for any purpose is hereby granted
* without fee, provided the above notices are retained on all copies.
* Permission to modify the code and to distribute modified code is granted,
* provided the above notices are retained, and a notice that the code was
* modified is included with the above copyright notice.
*
*/
#ifndef _STLP_STDIO_FILE_H
#define _STLP_STDIO_FILE_H
/* This file provides a low-level interface between the internal
* representation of struct FILE, from the C stdio library, and
* the C++ I/O library. */
#ifndef _STLP_CSTDIO
# include <cstdio>
#endif
#ifndef _STLP_CSTDDEF
# include <cstddef>
#endif
#if defined (__MSL__)
# include <unix.h> /* get the definition of fileno */
#endif
_STLP_BEGIN_NAMESPACE
#if defined (_STLP_WCE)
inline int _FILE_fd(const FILE *__f) {
/* Check if FILE is one of the three standard streams
We do this check first, because invoking _fileno() on one of them
causes a terminal window to be created. This also happens if you do
any IO on them, but merely retrieving the filedescriptor shouldn't
already do that.
Obviously this is pretty implementation-specific because it requires
that indeed the first three FDs are always the same, but that is not
only common but almost guaranteed. */
for (int __fd = 0; __fd != 3; ++__fd) {
if (__f == _getstdfilex(__fd))
return __fd;
}
/* Normal files. */
return (int)::_fileno((FILE*)__f);
}
# elif defined (_STLP_SCO_OPENSERVER) || defined (__NCR_SVR)
inline int _FILE_fd(const FILE *__f) { return __f->__file; }
# elif defined (__sun) && defined (_LP64)
inline int _FILE_fd(const FILE *__f) { return (int) __f->__pad[2]; }
#elif defined (__hpux) /* && defined(__hppa) && defined(__HP_aCC)) */ || \
defined (__MVS__) || \
defined (_STLP_USE_UCLIBC) /* should be before _STLP_USE_GLIBC */
inline int _FILE_fd(const FILE *__f) { return fileno(__CONST_CAST(FILE*, __f)); }
#elif defined (_STLP_USE_GLIBC)
inline int _FILE_fd(const FILE *__f) { return __f->_fileno; }
#elif defined (__BORLANDC__)
inline int _FILE_fd(const FILE *__f) { return __f->fd; }
#elif defined (__MWERKS__)
/* using MWERKS-specific defines here to detect other OS targets
* dwa: I'm not sure they provide fileno for all OS's, but this should
* work for Win32 and WinCE
* Hmm, at least for Novell NetWare __dest_os == __mac_os true too..
* May be both __dest_os and __mac_os defined and empty? - ptr */
# if __dest_os == __mac_os
inline int _FILE_fd(const FILE *__f) { return ::fileno(__CONST_CAST(FILE*, __f)); }
# else
inline int _FILE_fd(const FILE *__f) { return ::_fileno(__CONST_CAST(FILE*, __f)); }
# endif
#elif defined (__QNXNTO__) || defined (__WATCOMC__) || defined (__EMX__)
inline int _FILE_fd(const FILE *__f) { return __f->_handle; }
#elif defined (__Lynx__)
/* the prototypes are taken from LynxOS patch for STLport 4.0 */
inline int _FILE_fd(const FILE *__f) { return __f->_fd; }
#else /* The most common access to file descriptor. */
inline int _FILE_fd(const FILE *__f) { return __f->_file; }
#endif
_STLP_END_NAMESPACE
#endif /* _STLP_STDIO_FILE_H */
/* Local Variables:
* mode:C++
* End: */
