759 lines
30 KiB
C
759 lines
30 KiB
C
/*
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* Copyright (c) 1999
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* Silicon Graphics Computer Systems, Inc.
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*
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* Copyright (c) 1999
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* Boris Fomitchev
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*
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* This material is provided "as is", with absolutely no warranty expressed
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* or implied. Any use is at your own risk.
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*
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* Permission to use or copy this software for any purpose is hereby granted
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* without fee, provided the above notices are retained on all copies.
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* Permission to modify the code and to distribute modified code is granted,
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* provided the above notices are retained, and a notice that the code was
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* modified is included with the above copyright notice.
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*
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*/
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// WARNING: This is an internal header file, included by other C++
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// standard library headers. You should not attempt to use this header
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// file directly.
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#ifndef _STLP_STDIO_FILE_H
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#define _STLP_STDIO_FILE_H
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// This file provides a low-level interface between the internal
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// representation of struct FILE, from the C stdio library, and
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// the C++ I/O library. The C++ I/O library views a FILE object as
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// a collection of three pointers: the beginning of the buffer, the
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// current read/write position, and the end of the buffer.
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// The interface:
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// - char* _FILE_[IO]_begin(const FILE *__f);
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// Returns a pointer to the beginning of the buffer.
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// - char* _FILE_[IO]_next(const FILE *__f);
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// Returns the current read/write position within the buffer.
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// - char* _FILE_[IO]_end(const FILE *__f);
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// Returns a pointer immediately past the end of the buffer.
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// - char* _FILE_[IO]_avail(const FILE *__f);
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// Returns the number of characters remaining in the buffer, i.e.
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// _FILE_[IO]_end(__f) - _FILE_[IO]_next(__f).
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// - char& _FILE_[IO]_preincr(FILE *__f)
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// Increments the current read/write position by 1, returning the
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// character at the old position.
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// - char& _FILE_[IO]_postincr(FILE *__f)
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// Increments the current read/write position by 1, returning the
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// character at the old position.
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// - char& _FILE_[IO]_predecr(FILE *__f)
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// Decrements the current read/write position by 1, returning the
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// character at the old position.
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// - char& _FILE_[IO]_postdecr(FILE *__f)
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// Decrements the current read/write position by 1, returning the
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// character at the old position.
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// - void _FILE_[IO]_bump(FILE *__f, int __n)
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// Increments the current read/write position by __n.
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// - void _FILE_[IO]_set(FILE *__f, char* __begin, char* __next, char* __end);
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// Sets the beginning of the bufer to __begin, the current read/write
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// position to __next, and the buffer's past-the-end pointer to __end.
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// If any of those pointers is null, then all of them must be null.
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// Each function comes in two versions, one for a FILE used as an input
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// buffer and one for a FILE used as an output buffer. In some stdio
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// implementations the two functions are identical, but in others they are
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// not.
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#ifndef _STLP_CSTDIO
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# include <cstdio>
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#endif
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#ifndef _STLP_CSTDDEF
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# include <cstddef>
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#endif
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#if defined(__MSL__)
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# include <unix.h> // get the definition of fileno
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#endif
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_STLP_BEGIN_NAMESPACE
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#if !defined(_STLP_WINCE)
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//----------------------------------------------------------------------
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// Implementation for the IRIX C library.
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// Solaris interface looks to be identical.
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#if !defined(_STLP_USE_GLIBC) && \
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( defined(__sgi) || \
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( defined(__sun) && ! defined (_LP64) ) || \
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defined (__osf__) || defined(__DECCXX) || \
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defined (_STLP_MSVC) || defined (__ICL) || defined (__MINGW32__) || defined(__DJGPP) || defined (_AIX) || defined (_CRAY))
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#if defined ( _MSC_VER ) || defined (__ICL) || defined (__MINGW32__) || defined(__DJGPP)
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typedef char* _File_ptr_type;
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#else
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typedef unsigned char* _File_ptr_type;
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#endif
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inline int _FILE_fd(const FILE *__f) { return __f->_file; }
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inline char* _FILE_I_begin(const FILE *__f) { return (char*) __f->_base; }
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inline char* _FILE_I_next(const FILE *__f) { return (char*) __f->_ptr; }
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inline char* _FILE_I_end(const FILE *__f)
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{ return (char*) __f->_ptr + __f->_cnt; }
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inline ptrdiff_t _FILE_I_avail(const FILE *__f) { return __f->_cnt; }
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inline char& _FILE_I_preincr(FILE *__f)
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{ --__f->_cnt; return *(char*) (++__f->_ptr); }
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inline char& _FILE_I_postincr(FILE *__f)
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{ --__f->_cnt; return *(char*) (__f->_ptr++); }
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inline char& _FILE_I_predecr(FILE *__f)
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{ ++__f->_cnt; return *(char*) (--__f->_ptr); }
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inline char& _FILE_I_postdecr(FILE *__f)
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{ ++__f->_cnt; return *(char*) (__f->_ptr--); }
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inline void _FILE_I_bump(FILE *__f, int __n)
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{ __f->_ptr += __n; __f->_cnt -= __n; }
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inline void _FILE_I_set(FILE *__f, char* __begin, char* __next, char* __end) {
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__f->_base = (_File_ptr_type) __begin;
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__f->_ptr = (_File_ptr_type) __next;
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__f->_cnt = __end - __next;
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}
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# define _STLP_FILE_I_O_IDENTICAL 1
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#elif defined(__EMX__)
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inline int _FILE_fd(const FILE* __f) { return __f->_handle; }
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inline char* _FILE_I_begin(const FILE* __f) { return (char*) __f->_buffer; }
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inline char* _FILE_I_next(const FILE* __f) { return (char*) __f->_ptr; }
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inline char* _FILE_I_end(const FILE* __f) { return (char *) __f->_ptr + __f->_rcount; }
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inline ptrdiff_t _FILE_I_avail(const FILE* __f) { return __f->_rcount; }
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inline char& _FILE_I_preincr(FILE* __f) { --__f->_rcount; return *(char*) (++__f->_ptr); }
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inline char& _FILE_I_postincr(FILE* __f) { --__f->_rcount; return *(char*) (__f->_ptr++); }
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inline char& _FILE_I_predecr(FILE* __f) { ++__f->_rcount; return *(char*) (--__f->_ptr); }
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inline char& _FILE_I_postdecr(FILE* __f) { ++__f->_rcount; return *(char*) (__f->_ptr--); }
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inline void _FILE_I_bump(FILE* __f, int __n) { __f->_ptr += __n; __f->_rcount -= __n; }
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inline void _FILE_I_set(FILE* __f, char* __begin, char* __next, char* __end) {
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__f->_buffer = __begin;
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__f->_ptr = __next;
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__f->_rcount = __end - __next;
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}
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inline char* _FILE_O_begin(const FILE* __f) { return (char*) __f->_buffer; }
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inline char* _FILE_O_next(const FILE* __f) { return (char*) __f->_ptr; }
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inline char* _FILE_O_end(const FILE* __f) { return (char*) __f->_ptr + __f->_wcount; }
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inline ptrdiff_t _FILE_O_avail(const FILE* __f) { return __f->_wcount; }
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inline char& _FILE_O_preincr(FILE* __f) { --__f->_wcount; return *(char*) (++__f->_ptr); }
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inline char& _FILE_O_postincr(FILE* __f) { --__f->_wcount; return *(char*) (__f->_ptr++); }
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inline char& _FILE_O_predecr(FILE* __f) { ++__f->_wcount; return *(char*) (--__f->_ptr); }
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inline char& _FILE_O_postdecr(FILE* __f) { ++__f->_wcount; return *(char*) (__f->_ptr--); }
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inline void _FILE_O_bump(FILE* __f, int __n) { __f->_ptr += __n; __f->_wcount -= __n; }
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inline void _FILE_O_set(FILE* __f, char* __begin, char* __next, char* __end) {
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__f->_buffer = __begin;
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__f->_ptr = __next;
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__f->_wcount = __end - __next;
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}
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# undef _STLP_FILE_I_O_IDENTICAL
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# elif defined(_STLP_SCO_OPENSERVER) || defined(__NCR_SVR)
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typedef unsigned char* _File_ptr_type;
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inline int _FILE_fd(const FILE *__f) { return __f->__file; }
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inline char* _FILE_I_begin(const FILE *__f) { return (char*) __f->__base; }
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inline char* _FILE_I_next(const FILE *__f) { return (char*) __f->__ptr; }
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inline char* _FILE_I_end(const FILE *__f)
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{ return (char*) __f->__ptr + __f->__cnt; }
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inline ptrdiff_t _FILE_I_avail(const FILE *__f) { return __f->__cnt; }
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inline char& _FILE_I_preincr(FILE *__f)
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{ --__f->__cnt; return *(char*) (++__f->__ptr); }
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inline char& _FILE_I_postincr(FILE *__f)
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{ --__f->__cnt; return *(char*) (__f->__ptr++); }
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inline char& _FILE_I_predecr(FILE *__f)
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{ ++__f->__cnt; return *(char*) (--__f->__ptr); }
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inline char& _FILE_I_postdecr(FILE *__f)
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{ ++__f->__cnt; return *(char*) (__f->__ptr--); }
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inline void _FILE_I_bump(FILE *__f, int __n)
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{ __f->__ptr += __n; __f->__cnt -= __n; }
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inline void _FILE_I_set(FILE *__f, char* __begin, char* __next, char* __end) {
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__f->__base = (_File_ptr_type) __begin;
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__f->__ptr = (_File_ptr_type) __next;
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__f->__cnt = __end - __next;
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}
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# define _STLP_FILE_I_O_IDENTICAL 1
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# elif defined(__sun) && defined( _LP64)
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typedef long _File_ptr_type;
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inline int _FILE_fd(const FILE *__f) { return (int) __f->__pad[2]; }
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inline char* _FILE_I_begin(const FILE *__f) { return (char*)
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__f->__pad[1]; }
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inline char* _FILE_I_next(const FILE *__f) { return (char*)
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__f->__pad[0]; }
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inline char* _FILE_I_end(const FILE *__f)
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{ return (char*) __f->__pad[0] + __f->__pad[3]; }
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inline ptrdiff_t _FILE_I_avail(const FILE *__f) { return __f->__pad[3]; }
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inline char& _FILE_I_preincr(FILE *__f)
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{ --__f->__pad[3]; return *(char*) (++__f->__pad[0]); }
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inline char& _FILE_I_postincr(FILE *__f)
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{ --__f->__pad[3]; return *(char*) (__f->__pad[0]++); }
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inline char& _FILE_I_predecr(FILE *__f)
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{ ++__f->__pad[3]; return *(char*) (--__f->__pad[0]); }
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inline char& _FILE_I_postdecr(FILE *__f)
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{ ++__f->__pad[3]; return *(char*) (__f->__pad[0]--); }
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inline void _FILE_I_bump(FILE *__f, long __n)
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{ __f->__pad[0] += __n; __f->__pad[3] -= __n; }
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inline void _FILE_I_set(FILE *__f, char* __begin, char* __next, char*
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__end) {
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__f->__pad[1] = (_File_ptr_type) __begin;
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__f->__pad[0] = (_File_ptr_type) __next;
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__f->__pad[3] = __end - __next;
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}
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# define _STLP_FILE_I_O_IDENTICAL
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#elif defined (__CYGWIN__) || defined(__FreeBSD__) || defined(__NetBSD__) \
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|| defined(__amigaos__) || ( defined(__GNUC__) && defined(__APPLE__) )
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inline int _FILE_fd(const FILE *__f) { return __f->_file; }
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inline char* _FILE_I_begin(const FILE *__f) { return (char*)
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__f->_bf._base; }
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inline char* _FILE_I_next(const FILE *__f) { return (char*) __f->_p; }
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inline char* _FILE_I_end(const FILE *__f)
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{ return (char*) __f->_p + __f->_r; }
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inline ptrdiff_t _FILE_I_avail(const FILE *__f) { return __f->_r; }
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inline char& _FILE_I_preincr(FILE *__f)
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{ --__f->_r; --__f->_bf._size; return *(char*) (++__f->_p); }
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inline char& _FILE_I_postincr(FILE *__f)
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{ --__f->_r; --__f->_bf._size; return *(char*) (__f->_p++); }
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inline char& _FILE_I_predecr(FILE *__f)
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{ ++__f->_r; ++ __f->_bf._size; return *(char*) (--__f->_p); }
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inline char& _FILE_I_postdecr(FILE *__f)
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{ ++__f->_r; ++__f->_bf._size; return *(char*) (__f->_p--); }
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inline void _FILE_I_bump(FILE *__f, int __n)
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{ __f->_p += __n; __f->_bf._size+=__n; __f->_r -= __n; }
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inline void _FILE_I_set(FILE *__f, char* __begin, char* __next, char*
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__end) {
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__f->_bf._base = (unsigned char*) __begin;
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__f->_p = (unsigned char*) __next;
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__f->_r = __f->_bf._size = __end - __next;
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}
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inline char* _FILE_O_begin(const FILE *__f) { return (char*)
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__f->_bf._base; }
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inline char* _FILE_O_next(const FILE *__f) { return (char*) __f->_p; }
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inline char* _FILE_O_end(const FILE *__f)
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{ return (char*) __f->_p + __f->_w; }
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inline ptrdiff_t _FILE_O_avail(const FILE *__f) { return __f->_w; }
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inline char& _FILE_O_preincr(FILE *__f)
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{ --__f->_w; --__f->_bf._size; return *(char*) (++__f->_p); }
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inline char& _FILE_O_postincr(FILE *__f)
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{ --__f->_w; --__f->_bf._size; return *(char*) (__f->_p++); }
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inline char& _FILE_O_predecr(FILE *__f)
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{ ++__f->_w; ++__f->_bf._size; return *(char*) (--__f->_p); }
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inline char& _FILE_O_postdecr(FILE *__f)
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{ ++__f->_w; ++__f->_bf._size; return *(char*) (__f->_p--); }
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inline void _FILE_O_bump(FILE *__f, int __n)
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{ __f->_p += __n; __f->_bf._size+=__n; __f->_w -= __n; }
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inline void _FILE_O_set(FILE *__f, char* __begin, char* __next, char*
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__end) {
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__f->_bf._base = (unsigned char*) __begin;
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__f->_p = (unsigned char*) __next;
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__f->_w = __f->_bf._size = __end - __next;
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}
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# undef _STLP_FILE_I_O_IDENTICAL
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#elif defined(_STLP_USE_GLIBC)
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inline int _FILE_fd(const FILE *__f) { return __f->_fileno; }
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inline char* _FILE_I_begin(const FILE *__f) { return __f->_IO_read_base; }
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inline char* _FILE_I_next(const FILE *__f) { return __f->_IO_read_ptr; }
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inline char* _FILE_I_end(const FILE *__f) { return __f->_IO_read_end; }
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inline ptrdiff_t _FILE_I_avail(const FILE *__f)
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{ return __f->_IO_read_end - __f->_IO_read_ptr; }
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inline char& _FILE_I_preincr(FILE *__f) { return *++__f->_IO_read_ptr; }
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inline char& _FILE_I_postincr(FILE *__f) { return *__f->_IO_read_ptr++; }
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inline char& _FILE_I_predecr(FILE *__f) { return *--__f->_IO_read_ptr; }
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inline char& _FILE_I_postdecr(FILE *__f) { return *__f->_IO_read_ptr--; }
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inline void _FILE_I_bump(FILE *__f, int __n) { __f->_IO_read_ptr += __n; }
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inline void _FILE_I_set(FILE *__f, char* __begin, char* __next, char* __end) {
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__f->_IO_read_base = __begin;
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__f->_IO_read_ptr = __next;
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__f->_IO_read_end = __end;
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}
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inline char* _FILE_O_begin(const FILE *__f) { return __f->_IO_write_base; }
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inline char* _FILE_O_next(const FILE *__f) { return __f->_IO_write_ptr; }
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inline char* _FILE_O_end(const FILE *__f) { return __f->_IO_write_end; }
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inline ptrdiff_t _FILE_O_avail(const FILE *__f)
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{ return __f->_IO_write_end - __f->_IO_write_ptr; }
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inline char& _FILE_O_preincr(FILE *__f) { return *++__f->_IO_write_ptr; }
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inline char& _FILE_O_postincr(FILE *__f) { return *__f->_IO_write_ptr++; }
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inline char& _FILE_O_predecr(FILE *__f) { return *--__f->_IO_write_ptr; }
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inline char& _FILE_O_postdecr(FILE *__f) { return *__f->_IO_write_ptr--; }
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inline void _FILE_O_bump(FILE *__f, int __n) { __f->_IO_write_ptr += __n; }
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inline void _FILE_O_set(FILE *__f, char* __begin, char* __next, char* __end) {
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__f->_IO_write_base = __begin;
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__f->_IO_write_ptr = __next;
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__f->_IO_write_end = __end;
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}
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#elif defined(__hpux) /* && defined(__hppa) && defined(__HP_aCC)) */
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#ifndef _INCLUDE_HPUX_SOURCE
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extern "C" unsigned char *__bufendtab[];
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# undef _bufend
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# define _bufend(__p) \
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(*(((__p)->__flag & _IOEXT) ? &(((_FILEX *)(__p))->__bufendp) \
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: &(__bufendtab[(__p) - __iob])))
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# define _bufsiz(__p) (_bufend(__p) - (__p)->__base)
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#endif /* _INCLUDE_HPUX_SOURCE */
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#if defined(_STLP_HPACC_BROKEN_BUFEND)
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# undef _bufend
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# define _bufend(__p) \
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(*(((__p)->__flag & _IOEXT) ? &((__REINTERPRET_CAST(_FILEX*,(__p)))->__bufendp) \
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: &(__bufendtab[__REINTERPRET_CAST(FILE*,(__p)) - __iob])))
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#endif
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inline int _FILE_fd(const FILE *__f) { return fileno(__CONST_CAST(FILE *,__f)); }
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inline char* _FILE_I_begin(const FILE *__f) { return (__REINTERPRET_CAST(char*, __f->__base)); }
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inline char* _FILE_I_next(const FILE *__f) { return (__REINTERPRET_CAST(char*, __f->__ptr)); }
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inline char* _FILE_I_end(const FILE *__f) { return (__REINTERPRET_CAST(char*, __f->__ptr +__f->__cnt)); }
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inline ptrdiff_t _FILE_I_avail(const FILE *__f) { return __f->__cnt; }
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inline char& _FILE_I_preincr(FILE *__f) { --__f->__cnt; return *__REINTERPRET_CAST(char*, ++__f->__ptr); }
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inline char& _FILE_I_postincr(FILE *__f) { --__f->__cnt; return *__REINTERPRET_CAST(char*, __f->__ptr++); }
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inline char& _FILE_I_predecr(FILE *__f) { ++__f->__cnt; return *__REINTERPRET_CAST(char*,--__f->__ptr); }
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inline char& _FILE_I_postdecr(FILE *__f) { ++__f->__cnt; return *__REINTERPRET_CAST(char*,__f->__ptr--); }
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inline void _FILE_I_bump(FILE *__f, int __n) { __f->__cnt -= __n; __f->__ptr += __n; }
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inline void _FILE_I_set(FILE *__f, char* __begin, char* __next, char* __end) {
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# if defined(__hpux)
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if( (unsigned long) (__f - &__iob[0]) > _NFILE)
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__f->__flag |= _IOEXT; // used by stdio's _bufend macro and goodness knows what else...
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# endif
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__f->__cnt = __end - __next;
|
|
__f->__base = __REINTERPRET_CAST(unsigned char*, __begin);
|
|
__f->__ptr = __REINTERPRET_CAST(unsigned char*, __next);
|
|
_bufend(__f) = __REINTERPRET_CAST(unsigned char*, __end);
|
|
}
|
|
|
|
// For HPUX stdio, input and output FILE manipulation is identical.
|
|
|
|
# define _STLP_FILE_I_O_IDENTICAL
|
|
|
|
#elif defined (__BORLANDC__)
|
|
|
|
typedef unsigned char* _File_ptr_type;
|
|
|
|
inline int _FILE_fd(const FILE *__f) { return __f->fd; }
|
|
inline char* _FILE_I_begin(const FILE *__f) { return (char*) __f->buffer;
|
|
}
|
|
inline char* _FILE_I_next(const FILE *__f)
|
|
{ return (char*)__f->curp; }
|
|
inline char* _FILE_I_end(const FILE *__f)
|
|
{ return (char*) __f->curp + __f->level; }
|
|
|
|
inline ptrdiff_t _FILE_I_avail(const FILE *__f) { return __f->level; }
|
|
|
|
inline char& _FILE_I_preincr(FILE *__f)
|
|
{ --__f->level; return *(char*) (++__f->curp); }
|
|
inline char& _FILE_I_postincr(FILE *__f)
|
|
{ --__f->level; return *(char*) (__f->curp++); }
|
|
inline char& _FILE_I_predecr(FILE *__f)
|
|
{ ++__f->level; return *(char*) (--__f->curp); }
|
|
inline char& _FILE_I_postdecr(FILE *__f)
|
|
{ ++__f->level; return *(char*) (__f->curp--); }
|
|
inline void _FILE_I_bump(FILE *__f, int __n)
|
|
{ __f->curp += __n; __f->level -= __n; }
|
|
|
|
inline void _FILE_I_set(FILE *__f, char* __begin, char* __next, char*
|
|
__end) {
|
|
__f->buffer = (_File_ptr_type) __begin;
|
|
__f->curp = (_File_ptr_type) __next;
|
|
__f->level = __end - __next;
|
|
}
|
|
|
|
# define _STLP_FILE_I_O_IDENTICAL
|
|
|
|
#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
|
|
# 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
|
|
|
|
// Returns a pointer to the beginning of the buffer.
|
|
inline char* _FILE_I_begin(const FILE *__f) { return __REINTERPRET_CAST(char*, __f->buffer); }
|
|
// Returns the current read/write position within the buffer.
|
|
inline char* _FILE_I_next(const FILE *__f) { return __REINTERPRET_CAST(char*, __f->buffer_ptr); }
|
|
|
|
// Returns a pointer immediately past the end of the buffer.
|
|
inline char* _FILE_I_end(const FILE *__f) { return __REINTERPRET_CAST(char*, __f->buffer_ptr + __f->buffer_len); }
|
|
|
|
// Returns the number of characters remaining in the buffer, i.e.
|
|
// _FILE_[IO]_end(__f) - _FILE_[IO]_next(__f).
|
|
inline ptrdiff_t _FILE_I_avail(const FILE *__f) { return __f->buffer_len; }
|
|
|
|
// Increments the current read/write position by 1, returning the
|
|
// character at the old position.
|
|
inline char& _FILE_I_preincr(FILE *__f)
|
|
{ --__f->buffer_len; return *(char*) (++__f->buffer_ptr); }
|
|
inline char& _FILE_I_postincr(FILE *__f)
|
|
{ --__f->buffer_len; return *(char*) (__f->buffer_ptr++); }
|
|
inline char& _FILE_I_predecr(FILE *__f)
|
|
{ ++__f->buffer_len; return *(char*) (--__f->buffer_ptr); }
|
|
inline char& _FILE_I_postdecr(FILE *__f)
|
|
{ ++__f->buffer_len; return *(char*) (__f->buffer_ptr--); }
|
|
inline void _FILE_I_bump(FILE *__f, int __n)
|
|
{ __f->buffer_ptr += __n; __f->buffer_len -= __n; }
|
|
|
|
inline void _FILE_I_set(FILE *__f, char* __begin, char* __next, char* __end) {
|
|
__f->buffer = __REINTERPRET_CAST(unsigned char*, __begin);
|
|
__f->buffer_ptr = __REINTERPRET_CAST(unsigned char*, __next);
|
|
__f->buffer_len = __end - __next;
|
|
__f->buffer_size = __end - __begin;
|
|
}
|
|
|
|
# define _STLP_FILE_I_O_IDENTICAL
|
|
|
|
#elif defined(__DMC__)
|
|
|
|
inline int _FILE_fd(const FILE *__f) { return __f->_file; }
|
|
|
|
// Returns a pointer to the beginning of the buffer.
|
|
inline char* _FILE_I_begin(const FILE *__f) { return __f->_base; }
|
|
|
|
// Returns the current read/write position within the buffer.
|
|
inline char* _FILE_I_next(const FILE *__f) { return __f->_ptr; }
|
|
|
|
// Returns a pointer immediately past the end of the buffer.
|
|
inline char* _FILE_I_end(const FILE *__f) { return __f->_ptr + __f->_cnt; }
|
|
|
|
// Returns the number of characters remaining in the buffer, i.e.
|
|
// _FILE_[IO]_end(__f) - _FILE_[IO]_next(__f).
|
|
inline ptrdiff_t _FILE_I_avail(const FILE *__f) { return __f->_cnt; }
|
|
|
|
// Increments the current read/write position by 1, returning the
|
|
// character at the NEW position.
|
|
inline char& _FILE_I_preincr(FILE *__f) { --__f->_cnt; return *(++__f->_ptr); }
|
|
|
|
|
|
// Increments the current read/write position by 1, returning the
|
|
// character at the old position.
|
|
inline char& _FILE_I_postincr(FILE *__f) { --__f->_cnt; return *(__f->_ptr++); }
|
|
|
|
// Decrements the current read/write position by 1, returning the
|
|
// character at the NEW position.
|
|
inline char& _FILE_I_predecr(FILE *__f) { ++__f->_cnt; return *(--__f->_ptr); }
|
|
|
|
// Decrements the current read/write position by 1, returning the
|
|
// character at the old position.
|
|
inline char& _FILE_I_postdecr(FILE *__f) { ++__f->_cnt; return *(__f->_ptr--); }
|
|
|
|
// Increments the current read/write position by __n.
|
|
inline void _FILE_I_bump(FILE *__f, int __n) { __f->_cnt -= __n; __f->_ptr += __n; }
|
|
|
|
// Sets the beginning of the bufer to __begin, the current read/write
|
|
// position to __next, and the buffer's past-the-end pointer to __end.
|
|
// If any of those pointers is null, then all of them must be null.
|
|
inline void _FILE_I_set(FILE *__f, char* __begin, char* __next, char* __end)
|
|
{
|
|
__f->_base = __begin;
|
|
__f->_ptr = __next;
|
|
__f->_cnt = __end - __next;
|
|
__f->_bufsiz = __end - __begin;
|
|
}
|
|
|
|
# define _STLP_FILE_I_O_IDENTICAL
|
|
|
|
#elif defined(__MRC__) || defined(__SC__) //*TY 02/24/2000 - added support for MPW
|
|
|
|
inline int _FILE_fd(const FILE *__f) { return __f->_file; }
|
|
|
|
// Returns a pointer to the beginning of the buffer.
|
|
inline char* _FILE_I_begin(const FILE *__f) { return (char*) __f->_base; }
|
|
|
|
// Returns the current read/write position within the buffer.
|
|
inline char* _FILE_I_next(const FILE *__f) { return (char*) __f->_ptr; }
|
|
|
|
// Returns a pointer immediately past the end of the buffer.
|
|
inline char* _FILE_I_end(const FILE *__f) { return (char*)__f->_end; }
|
|
|
|
// Returns the number of characters remaining in the buffer, i.e.
|
|
// _FILE_[IO]_end(__f) - _FILE_[IO]_next(__f).
|
|
inline ptrdiff_t _FILE_I_avail(const FILE *__f) { return __f->_cnt; }
|
|
|
|
// Increments the current read/write position by 1, returning the
|
|
// character at the NEW position.
|
|
inline char& _FILE_I_preincr(FILE *__f) { --__f->_cnt; return*(char*) (++__f->_ptr); }
|
|
|
|
|
|
// Increments the current read/write position by 1, returning the
|
|
// character at the old position.
|
|
inline char& _FILE_I_postincr(FILE *__f) { --__f->_cnt; return*(char*) (__f->_ptr++); }
|
|
|
|
// Decrements the current read/write position by 1, returning the
|
|
// character at the NEW position.
|
|
inline char& _FILE_I_predecr(FILE *__f) { ++__f->_cnt; return*(char*) (--__f->_ptr); }
|
|
|
|
// Decrements the current read/write position by 1, returning the
|
|
// character at the old position.
|
|
inline char& _FILE_I_postdecr(FILE *__f) { ++__f->_cnt; return*(char*) (__f->_ptr--); }
|
|
|
|
// Increments the current read/write position by __n.
|
|
inline void _FILE_I_bump(FILE *__f, int __n) { __f->_cnt -= __n; __f->_ptr += __n; }
|
|
|
|
// Sets the beginning of the bufer to __begin, the current read/write
|
|
// position to __next, and the buffer's past-the-end pointer to __end.
|
|
// If any of those pointers is null, then all of them must be null.
|
|
inline void _FILE_I_set(FILE *__f, char* __begin, char* __next, char* __end)
|
|
{
|
|
__f->_base = (unsigned char*)__begin;
|
|
__f->_ptr = (unsigned char*)__next;
|
|
__f->_end = (unsigned char*)__end;
|
|
__f->_cnt = __end - __next;
|
|
__f->_size = __end - __begin;
|
|
}
|
|
|
|
# define _STLP_FILE_I_O_IDENTICAL
|
|
|
|
#elif defined (__MVS__)
|
|
|
|
typedef unsigned char* _File_ptr_type;
|
|
|
|
inline int _FILE_fd(const FILE *__f) { return fileno(__CONST_CAST(FILE
|
|
*,__f)); }
|
|
inline char* _FILE_I_begin(const FILE *__f) { return (char*)
|
|
__f->__fp->__bufPtr; }
|
|
inline char* _FILE_I_next(const FILE *__f) { return (char*)
|
|
__f->__fp->__bufPtr; }
|
|
inline char* _FILE_I_end(const FILE *__f)
|
|
{ return (char*) __f->__fp->__bufPtr + __f->__fp->__countIn; }
|
|
|
|
inline ptrdiff_t _FILE_I_avail(const FILE *__f) { return
|
|
__f->__fp->__countIn; }
|
|
|
|
inline char& _FILE_I_preincr(FILE *__f)
|
|
{ --__f->__fp->__countIn; return *(char*) (++__f->__fp->__bufPtr); }
|
|
inline char& _FILE_I_postincr(FILE *__f)
|
|
{ --__f->__fp->__countIn; return *(char*) (__f->__fp->__bufPtr++); }
|
|
inline char& _FILE_I_predecr(FILE *__f)
|
|
{ ++__f->__fp->__countIn; return *(char*) (--__f->__fp->__bufPtr); }
|
|
inline char& _FILE_I_postdecr(FILE *__f)
|
|
{ ++__f->__fp->__countIn; return *(char*) (__f->__fp->__bufPtr--); }
|
|
inline void _FILE_I_bump(FILE *__f, int __n)
|
|
{ __f->__fp->__bufPtr += __n; __f->__fp->__countIn -= __n; }
|
|
|
|
inline void _FILE_I_set(FILE *__f, char* __begin, char* __next, char*
|
|
__end) {
|
|
// __f->_base = (_File_ptr_type) __begin;
|
|
if(__f->__fp) {
|
|
__f->__fp->__bufPtr = (_File_ptr_type) __next;
|
|
__f->__fp->__countIn = __end - __next;
|
|
}
|
|
}
|
|
|
|
inline char* _FILE_O_begin(const FILE *__f) { return (char*)__f->__fp->__bufPtr;}
|
|
inline char* _FILE_O_next(const FILE *__f) { return (char*) __f->__fp->__bufPtr;}
|
|
inline char* _FILE_O_end(const FILE *__f) { return (char*) __f->__fp->__bufPtr + __f->__fp->__countOut; }
|
|
inline ptrdiff_t _FILE_O_avail(const FILE *__f) { return __f->__fp->__countOut; }
|
|
|
|
inline char& _FILE_O_preincr(FILE *__f)
|
|
{ --__f->__fp->__countOut; return *(char*) (++__f->__fp->__bufPtr); }
|
|
inline char& _FILE_O_postincr(FILE *__f)
|
|
{ --__f->__fp->__countOut; return *(char*) (__f->__fp->__bufPtr++); }
|
|
inline char& _FILE_O_predecr(FILE *__f)
|
|
{ ++__f->__fp->__countOut; return *(char*) (--__f->__fp->__bufPtr); }
|
|
inline char& _FILE_O_postdecr(FILE *__f)
|
|
{ ++__f->__fp->__countOut; return *(char*) (__f->__fp->__bufPtr--); }
|
|
inline void _FILE_O_bump(FILE *__f, int __n)
|
|
{ __f->__fp->__bufPtr += __n; __f->__fp->__countOut -= __n; }
|
|
|
|
inline void _FILE_O_set(FILE *__f, char* __begin, char* __next, char*
|
|
__end) {
|
|
// __f->_base = (_File_ptr_type) __begin;
|
|
if(__f->__fp) {
|
|
__f->__fp->__bufPtr = (_File_ptr_type) __next;
|
|
__f->__fp->__countOut = __end - __next;
|
|
}
|
|
}
|
|
|
|
#elif defined(__QNXNTO__)
|
|
|
|
inline int _FILE_fd(const FILE *__f) { return __f->_handle;
|
|
}
|
|
inline char* _FILE_I_begin(const FILE *__f) { return
|
|
(char*) __f->_base; }
|
|
inline char* _FILE_I_next(const FILE *__f) { return
|
|
(char*) __f->_ptr; }
|
|
inline char* _FILE_I_end(const FILE *__f)
|
|
{ return (char*) __f->_ptr + __f->_cnt; }
|
|
|
|
inline ptrdiff_t _FILE_I_avail(const FILE *__f) { return
|
|
__f->_cnt; }
|
|
|
|
inline char& _FILE_I_preincr(FILE *__f)
|
|
{ --__f->_cnt; return *(char*) (++__f->_ptr); }
|
|
inline char& _FILE_I_postincr(FILE *__f)
|
|
{ --__f->_cnt; return *(char*) (__f->_ptr++); }
|
|
inline char& _FILE_I_predecr(FILE *__f)
|
|
{ ++__f->_cnt; return *(char*) (--__f->_ptr); }
|
|
inline char& _FILE_I_postdecr(FILE *__f)
|
|
{ ++__f->_cnt; return *(char*) (__f->_ptr--); }
|
|
inline void _FILE_I_bump(FILE *__f, int __n)
|
|
{ __f->_ptr += __n; __f->_cnt -= __n; }
|
|
|
|
inline void _FILE_I_set(FILE *__f, char* __begin, char*
|
|
__next, char*
|
|
__end) {
|
|
__f->_base = (unsigned char*) __begin;
|
|
__f->_ptr = (unsigned char*) __next;
|
|
__f->_cnt = __end - __next;
|
|
}
|
|
|
|
# define _STLP_FILE_I_O_IDENTICAL
|
|
|
|
#elif defined(__WATCOMC__) // Nikolaev
|
|
|
|
inline int _FILE_fd (const FILE *__f) { return __f->_handle;}
|
|
inline char* _FILE_I_begin (const FILE *__f) { return __REINTERPRET_CAST(char*, __f->_link); }
|
|
inline char* _FILE_I_next (const FILE *__f) { return __REINTERPRET_CAST(char*, __f->_ptr); }
|
|
inline char* _FILE_I_end (const FILE *__f) { return __REINTERPRET_CAST(char*, __f->_ptr + __f->_cnt); }
|
|
inline ptrdiff_t _FILE_I_avail (const FILE *__f) { return __f->_cnt; }
|
|
|
|
inline char& _FILE_I_preincr(FILE *__f)
|
|
{
|
|
--__f->_cnt;
|
|
return *__REINTERPRET_CAST(char*, ++__f->_ptr);
|
|
}
|
|
|
|
inline char& _FILE_I_postincr(FILE *__f)
|
|
{
|
|
--__f->_cnt;
|
|
return *__REINTERPRET_CAST(char*, __f->_ptr++);
|
|
}
|
|
|
|
inline char& _FILE_I_predecr(FILE *__f)
|
|
{
|
|
++__f->_cnt;
|
|
return *__REINTERPRET_CAST(char*, --__f->_ptr);
|
|
}
|
|
|
|
inline char& _FILE_I_postdecr(FILE *__f)
|
|
{
|
|
++__f->_cnt;
|
|
return *__REINTERPRET_CAST(char*, __f->_ptr--);
|
|
}
|
|
|
|
inline void _FILE_I_bump(FILE *__f, int __n)
|
|
{
|
|
__f->_ptr += __n;
|
|
__f->_cnt -= __n;
|
|
}
|
|
|
|
inline void _FILE_I_set(FILE *__f, char* __begin, char* __next, char* __end)
|
|
{
|
|
__f->_link = __REINTERPRET_CAST(__stream_link*, __begin);
|
|
__f->_ptr = __REINTERPRET_CAST(unsigned char*, __next);
|
|
__f->_cnt = __end - __next;
|
|
}
|
|
|
|
# define _STLP_FILE_I_O_IDENTICAL
|
|
|
|
#elif defined (__Lynx__)
|
|
|
|
// the prototypes are taken from LynxOS patch for STLport 4.0
|
|
inline int _FILE_fd(const FILE *__f) { return __f->_fd; }
|
|
inline char* _FILE_I_begin(const FILE *__f) { return (char*) __f->_base; }
|
|
inline char* _FILE_I_next(const FILE *__f) { return (char*) __f->_ptr; }
|
|
inline char* _FILE_I_end(const FILE *__f)
|
|
{ return (char*) __f->_ptr + __f->_cnt; }
|
|
|
|
inline ptrdiff_t _FILE_I_avail(const FILE *__f) { return __f->_cnt; }
|
|
|
|
inline char& _FILE_I_preincr(FILE *__f)
|
|
{ --__f->_cnt; return *(char*) (++__f->_ptr); }
|
|
inline char& _FILE_I_postincr(FILE *__f)
|
|
{ --__f->_cnt; return *(char*) (__f->_ptr++); }
|
|
inline char& _FILE_I_predecr(FILE *__f)
|
|
{ ++__f->_cnt; return *(char*) (--__f->_ptr); }
|
|
inline char& _FILE_I_postdecr(FILE *__f)
|
|
{ ++__f->_cnt; return *(char*) (__f->_ptr--); }
|
|
inline void _FILE_I_bump(FILE *__f, int __n)
|
|
{ __f->_ptr += __n; __f->_cnt -= __n; }
|
|
|
|
inline void _FILE_I_set(FILE *__f, char* __begin, char* __next, char* __end) {
|
|
__f->_base = __begin;
|
|
__f->_ptr = __next;
|
|
__f->_cnt = __end - __next;
|
|
}
|
|
# define _STLP_FILE_I_O_IDENTICAL
|
|
|
|
#else /* A C library that we don't have an implementation for. */
|
|
|
|
# error The C++ I/O library is not configured for this compiler
|
|
|
|
#endif
|
|
|
|
|
|
// For most stdio's , input and output FILE manipulation is identical.
|
|
# ifdef _STLP_FILE_I_O_IDENTICAL
|
|
inline char* _FILE_O_begin(const FILE *__f) { return _FILE_I_begin(__f); }
|
|
inline char* _FILE_O_next(const FILE *__f) { return _FILE_I_next(__f); }
|
|
inline char* _FILE_O_end(const FILE *__f) { return _FILE_I_end(__f); }
|
|
|
|
inline ptrdiff_t _FILE_O_avail(const FILE *__f) { return _FILE_I_avail(__f); }
|
|
|
|
inline char& _FILE_O_preincr(FILE *__f) { return _FILE_I_preincr(__f); }
|
|
inline char& _FILE_O_postincr(FILE *__f) { return _FILE_I_postincr(__f); }
|
|
inline char& _FILE_O_predecr(FILE *__f) { return _FILE_I_predecr(__f); }
|
|
inline char& _FILE_O_postdecr(FILE *__f) { return _FILE_I_postdecr(__f); }
|
|
|
|
inline void _FILE_O_bump(FILE *__f, int __n) { _FILE_I_bump(__f, __n); }
|
|
inline void _FILE_O_set(FILE *__f, char* __begin, char* __next, char* __end)
|
|
{ _FILE_I_set(__f, __begin, __next, __end); }
|
|
# endif
|
|
|
|
#else
|
|
inline int _FILE_fd(const FILE *__f) { return (int)::_fileno(__CONST_CAST(FILE *, __f)); }
|
|
#endif /* _STLP_WINCE */
|
|
|
|
_STLP_END_NAMESPACE
|
|
|
|
#endif /* _STLP_STDIO_FILE_H */
|
|
|
|
// Local Variables:
|
|
// mode:C++
|
|
// End:
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