// Wrapper of C-language FILE struct -*- C++ -*-
-// Copyright (C) 2000, 2001 Free Software Foundation, Inc.
+// Copyright (C) 2000, 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library. This library is free
// software; you can redistribute it and/or modify it under the
// ISO C++ 14882: 27.8 File-based streams
//
-namespace std
-{
- // Generic definitions for __basic_file
- template<typename _CharT>
- __basic_file<_CharT>::__basic_file(__c_lock* /*__lock*/)
- : _M_cfile(NULL), _M_cfile_created(false) { }
+/** @file basic_file.h
+ * This is an internal header file, included by other library headers.
+ * You should not attempt to use it directly.
+ */
- template<typename _CharT>
- __basic_file<_CharT>::~__basic_file()
- {
- if (this->is_open())
- {
- fflush(_M_cfile);
- this->close();
- }
- }
-
- template<typename _CharT>
- void
- __basic_file<_CharT>::_M_open_mode(ios_base::openmode __mode,
- int& /*__p_mode*/, int& /*__rw_mode*/,
- char* __c_mode)
- {
- bool __testb = __mode & ios_base::binary;
- bool __testi = __mode & ios_base::in;
- bool __testo = __mode & ios_base::out;
- bool __testt = __mode & ios_base::trunc;
- bool __testa = __mode & ios_base::app;
-
- if (!__testi && __testo && !__testt && !__testa)
- strcpy(__c_mode, "w");
- if (!__testi && __testo && !__testt && __testa)
- strcpy(__c_mode, "a");
- if (!__testi && __testo && __testt && !__testa)
- strcpy(__c_mode, "w");
- if (__testi && !__testo && !__testt && !__testa)
- strcpy(__c_mode, "r");
- if (__testi && __testo && !__testt && !__testa)
- strcpy(__c_mode, "r+");
- if (__testi && __testo && __testt && !__testa)
- strcpy(__c_mode, "w+");
- if (__testb)
- strcat(__c_mode, "b");
- }
-
- template<typename _CharT>
- __basic_file<_CharT>*
- __basic_file<_CharT>::sys_open(__c_file_type* __file, ios_base::openmode)
- {
- __basic_file* __ret = NULL;
+#ifndef _BASIC_FILE_STDIO_H
+#define _BASIC_FILE_STDIO_H 1
- if (!this->is_open() && __file)
- {
- _M_cfile = __file;
- _M_cfile_created = false;
- __ret = this;
- }
+#pragma GCC system_header
- return __ret;
- }
+#include <bits/c++config.h>
+#include <ios>
+namespace std
+{
+ // Generic declaration.
template<typename _CharT>
- _CharT
- __basic_file<_CharT>::sys_getc()
- {
- return getc (_M_cfile);
- }
+ class __basic_file;
- template<typename _CharT>
- _CharT
- __basic_file<_CharT>::sys_ungetc(_CharT __s)
- {
- return ungetc (__s, _M_cfile);
- }
-
- template<typename _CharT>
- __basic_file<_CharT>*
- __basic_file<_CharT>::open(const char* __name, ios_base::openmode __mode,
- int /*__prot*/)
+ // Specialization.
+ template<>
+ class __basic_file<char>
{
- __basic_file* __ret = NULL;
- int __p_mode = 0;
- int __rw_mode = 0;
- char __c_mode[4];
-
- _M_open_mode(__mode, __p_mode, __rw_mode, __c_mode);
-
- if (!this->is_open())
- {
- if ((_M_cfile = fopen(__name, __c_mode)))
- {
- _M_cfile_created = true;
- __ret = this;
- }
- }
- return __ret;
- }
-
- template<typename _CharT>
- bool
- __basic_file<_CharT>::is_open() { return _M_cfile != 0; }
-
- template<typename _CharT>
- __basic_file<_CharT>*
- __basic_file<_CharT>::close()
- {
- __basic_file* __retval = static_cast<__basic_file*>(NULL);
- if (_M_cfile_created && fclose(_M_cfile))
- __retval = this;
- return __retval;
- }
-
- template<typename _CharT>
- streamsize
- __basic_file<_CharT>::xsgetn(_CharT* __s, streamsize __n)
- { return fread(__s, 1, __n, _M_cfile); }
+ // Underlying data source/sink.
+ __c_file* _M_cfile;
- template<typename _CharT>
- streamsize
- __basic_file<_CharT>::xsputn(const _CharT* __s, streamsize __n)
- { return fwrite(__s, 1, __n, _M_cfile); }
-
- template<typename _CharT>
- streamoff
- __basic_file<_CharT>::seekoff(streamoff __off, ios_base::seekdir __way,
- ios_base::openmode /*__mode*/)
- { fseek(_M_cfile, __off, __way); return ftell(_M_cfile); }
+ // True iff we opened _M_cfile, and thus must close it ourselves.
+ bool _M_cfile_created;
- template<typename _CharT>
- streamoff
- __basic_file<_CharT>::seekpos(streamoff __pos,
- ios_base::openmode /*__mode*/)
- { fseek(_M_cfile, __pos, ios_base::beg); return ftell(_M_cfile); }
+ public:
+ __basic_file(__c_lock* __lock = 0);
- template<typename _CharT>
- int
- __basic_file<_CharT>::sync()
- { return fflush(_M_cfile); }
+ __basic_file*
+ open(const char* __name, ios_base::openmode __mode, int __prot = 0664);
- // NB: Unused.
- template<typename _CharT>
- int
- __basic_file<_CharT>::overflow(int /*__c*/)
- { return EOF; }
+ __basic_file*
+ sys_open(__c_file* __file, ios_base::openmode);
- // NB: Unused.
- template<typename _CharT>
- int
- __basic_file<_CharT>::underflow()
- { return EOF; }
+ __basic_file*
+ sys_open(int __fd, ios_base::openmode __mode);
- // NB: Unused.
- template<typename _CharT>
- int
- __basic_file<_CharT>::uflow()
- { return EOF; }
+ __basic_file*
+ close();
- // NB: Unused.
- template<typename _CharT>
- int
- __basic_file<_CharT>::pbackfail(int /*__c*/)
- { return EOF; }
-
- // NB: Unused.
- template<typename _CharT>
- streambuf*
- __basic_file<_CharT>::setbuf(_CharT* /*__b*/, int /*__len*/)
- { return reinterpret_cast<streambuf*>(this); }
+ bool
+ is_open() const;
- // NB: Unused.
- template<typename _CharT>
- int
- __basic_file<_CharT>::doallocate()
- { return EOF; }
+ int
+ fd();
- // NB: Unused.
- template<typename _CharT>
- streamsize
- __basic_file<_CharT>::sys_read(_CharT* __s, streamsize __n)
- { return fread(__s, 1, __n, _M_cfile); }
+ ~__basic_file();
- // NB: Unused.
- template<typename _CharT>
- streamsize
- __basic_file<_CharT>::sys_write(const _CharT* __s, streamsize __n)
- { return fwrite(__s, 1, __n, _M_cfile); }
+ streamsize
+ xsputn(const char* __s, streamsize __n);
- // NB: Unused.
- template<typename _CharT>
- streamoff
- __basic_file<_CharT>::sys_seek(streamoff __pos, ios_base::seekdir __way)
- {
- fseek(_M_cfile, __pos, __way);
- return ftell(_M_cfile);
- }
-
- // NB: Unused.
- template<typename _CharT>
- int
- __basic_file<_CharT>::sys_close()
- { return fclose(_M_cfile); }
+ streamsize
+ xsputn_2(const char* __s1, streamsize __n1,
+ const char* __s2, streamsize __n2);
- // NB: Unused.
- template<typename _CharT>
- int
- __basic_file<_CharT>::sys_stat(void* /*__v*/)
- { return EOF; }
+ streamsize
+ xsgetn(char* __s, streamsize __n);
- // NB: Unused.
- template<typename _CharT>
- int
- __basic_file<_CharT>::showmanyc()
- { return EOF; }
+ streamoff
+ seekoff(streamoff __off, ios_base::seekdir __way);
- // NB: Unused.
- template<typename _CharT>
- void
- __basic_file<_CharT>::imbue(void* /*__v*/) { }
+ int
+ sync();
+
+ streamsize
+ showmanyc();
+ };
} // namespace std
+
+#endif
git://gcc.gnu.org / gcc.git / blobdiff