75 lines
2.6 KiB
C++
75 lines
2.6 KiB
C++
// This is part of the iostream library, providing input/output for C++.
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// Copyright (C) 1991 Per Bothner.
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//
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Library General Public
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// License as published by the Free Software Foundation; either
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// version 2 of the License, or (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Library General Public License for more details.
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//
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// You should have received a copy of the GNU Library General Public
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// License along with this library; if not, write to the Free
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// Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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#ifndef __STRSTREAM_H
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#define __STRSTREAM_H
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#ifdef __GNUG__
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#pragma interface
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#endif
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#include <iostream.h>
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class strstreambuf : public backupbuf {
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_G_size_t _len; // The current length is max(_len, _pptr-_pbase).
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_G_size_t _size; // Allocated (physical) buffer size.
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char *_buffer;
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int _frozen;
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protected:
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virtual int overflow(int = EOF);
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virtual int underflow();
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public:
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strstreambuf();
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strstreambuf(int initial);
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strstreambuf(char *ptr, int size, char *pstart = NULL);
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~strstreambuf();
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int frozen() { return _frozen; }
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void freeze(int n=1) { _frozen = n != 0; }
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_G_size_t pcount();
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char *str();
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virtual streampos seekoff(streamoff, _seek_dir, int mode=ios::in|ios::out);
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};
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class istrstream : public istream {
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public:
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istrstream(char*);
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istrstream(char*, int);
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strstreambuf* rdbuf() { return (strstreambuf*)_strbuf; }
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};
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class ostrstream : public ostream {
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public:
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ostrstream();
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ostrstream(char *cp, int n, int mode=ios::out);
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_G_size_t pcount() { return ((strstreambuf*)_strbuf)->pcount(); }
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char *str() { return ((strstreambuf*)_strbuf)->str(); }
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void freeze(int n = 1) { ((strstreambuf*)_strbuf)->freeze(n); }
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int frozen() { return ((strstreambuf*)_strbuf)->frozen(); }
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strstreambuf* rdbuf() { return (strstreambuf*)_strbuf; }
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};
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class strstream : public iostream {
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public:
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strstream();
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strstream(char *cp, int n, int mode);
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_G_size_t pcount() { return ((strstreambuf*)_strbuf)->pcount(); }
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char *str() { return ((strstreambuf*)_strbuf)->str(); }
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void freeze(int n = 1) { ((strstreambuf*)_strbuf)->freeze(n); }
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int frozen() { return ((strstreambuf*)_strbuf)->frozen(); }
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strstreambuf* rdbuf() { return (strstreambuf*)_strbuf; }
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};
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#endif /*!__STRSTREAM_H*/
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