89 lines
2.0 KiB
C++
89 lines
2.0 KiB
C++
// This may look like C code, but it is really -*- C++ -*-
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/*
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Copyright (C) 1988 Free Software Foundation
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written by Doug Lea (dl@rocky.oswego.edu)
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This file is part of GNU CC.
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GNU CC is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY. No author or distributor
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accepts responsibility to anyone for the consequences of using it
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or for whether it serves any particular purpose or works at all,
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unless he says so in writing. Refer to the GNU CC General Public
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License for full details.
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Everyone is granted permission to copy, modify and redistribute
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GNU CC, but only under the conditions described in the
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GNU CC General Public License. A copy of this license is
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supposed to have been given to you along with GNU CC so you
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can know your rights and responsibilities. It should be in a
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file named COPYING. Among other things, the copyright notice
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and this notice must be preserved on all copies.
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*/
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#ifndef _SFile_h
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#ifdef __GNUG__
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#pragma once
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#pragma interface
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#endif
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#define _SFile_h 1
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#include <File.h>
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class SFile: public File
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{
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protected:
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int sz; // unit size for structured binary IO
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public:
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SFile();
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SFile(const char* filename, int size, io_mode m, access_mode a);
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SFile(const char* filename, int size, const char* m);
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SFile(int filedesc, int size, io_mode m);
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SFile(FILE* fileptr, int size);
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~SFile();
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int size();
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int setsize(int s);
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SFile& get(void* x);
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SFile& put(void* x);
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SFile& operator[](long i);
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};
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#if defined(__OPTIMIZE__) || defined(USE_LIBGXX_INLINES)
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inline int SFile::size()
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{
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return sz;
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}
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inline int SFile::setsize(int s)
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{
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int old = sz;
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sz = s;
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return old;
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}
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inline SFile& SFile::get(void* x)
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{
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read(x, sz, 1); return *this;
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}
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inline SFile& SFile::put(void* x)
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{
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write(x, sz, 1); return *this;
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}
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inline SFile& SFile::operator[](long i)
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{
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seek(i * sz, 0); return *this;
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}
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#endif
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#endif
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