59 lines
1.4 KiB
C++
59 lines
1.4 KiB
C++
|
/*
|
||
|
|
Copyright (C) 1988 Free Software Foundation
|
||
|
|
written by Doug Lea (dl@rocky.oswego.edu)
|
||
|
|
|
||
|
|
This file is part of the GNU C++ Library. This library is free
|
||
|
|
software; you can redistribute it and/or modify it under the terms of
|
||
|
|
the GNU Library General Public License as published by the Free
|
||
|
|
Software Foundation; either version 2 of the License, or (at your
|
||
|
|
option) any later version. This library is distributed in the hope
|
||
|
|
that it will be useful, but WITHOUT ANY WARRANTY; without even the
|
||
|
|
implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
|
||
|
|
PURPOSE. See the GNU Library General Public License for more details.
|
||
|
|
You should have received a copy of the GNU Library General Public
|
||
|
|
License along with this library; if not, write to the Free Software
|
||
|
|
Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifdef __GNUG__
|
||
|
|
#pragma implementation
|
||
|
|
#endif
|
||
|
|
#include <SFile.h>
|
||
|
|
|
||
|
|
SFile::SFile(const char *filename, int size, int mode, int prot)
|
||
|
|
: fstream(filename, mode, prot)
|
||
|
|
{
|
||
|
|
sz = size;
|
||
|
|
}
|
||
|
|
|
||
|
|
SFile::SFile(int fd, int size)
|
||
|
|
: fstream(fd)
|
||
|
|
{
|
||
|
|
sz = size;
|
||
|
|
}
|
||
|
|
|
||
|
|
void SFile::open(const char *name, int size, int mode, int prot)
|
||
|
|
{
|
||
|
|
fstream::open(name, mode, prot);
|
||
|
|
sz = size;
|
||
|
|
}
|
||
|
|
|
||
|
|
SFile& SFile::get(void* x)
|
||
|
|
{
|
||
|
|
read(x, sz);
|
||
|
|
return *this;
|
||
|
|
}
|
||
|
|
|
||
|
|
SFile& SFile::put(void* x)
|
||
|
|
{
|
||
|
|
write(x, sz);
|
||
|
|
return *this;
|
||
|
|
}
|
||
|
|
|
||
|
|
SFile& SFile::operator[](long i)
|
||
|
|
{
|
||
|
|
if (rdbuf()->seekoff(i * sz, ios::beg) == EOF)
|
||
|
|
set(ios::badbit);
|
||
|
|
return *this;
|
||
|
|
}
|