240 lines
8.6 KiB
C++
240 lines
8.6 KiB
C++
/* This is part of libio/iostream, providing -*- C++ -*- input/output.
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Copyright (C) 1993 Free Software Foundation
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This file is part of the GNU IO Library. This library is free
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software; you can redistribute it and/or modify it under the
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terms of the GNU General Public License as published by the
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Free Software Foundation; either version 2, or (at your option)
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any later version.
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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
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU CC; see the file COPYING. If not, write to
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the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
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As a special exception, if you link this library with files
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compiled with a GNU compiler to produce an executable, this does not cause
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the resulting executable to be covered by the GNU General Public License.
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This exception does not however invalidate any other reasons why
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the executable file might be covered by the GNU General Public License. */
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#ifndef _IOSTREAM_H
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#ifdef __GNUG__
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#pragma interface
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#endif
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#define _IOSTREAM_H
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#include <streambuf.h>
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class istream; class ostream;
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typedef ios& (*__manip)(ios&);
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typedef istream& (*__imanip)(istream&);
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typedef ostream& (*__omanip)(ostream&);
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extern istream& ws(istream& ins);
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extern ostream& flush(ostream& outs);
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extern ostream& endl(ostream& outs);
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extern ostream& ends(ostream& outs);
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class ostream : virtual public ios
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{
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// NOTE: If fields are changed, you must fix _fake_ostream in stdstreams.C!
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void do_osfx();
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public:
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ostream() { }
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ostream(streambuf* sb, ostream* tied=NULL);
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int opfx() {
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if (!good()) return 0; else { if (_tie) _tie->flush(); return 1;} }
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void osfx() { if (flags() & (ios::unitbuf|ios::stdio))
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do_osfx(); }
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ostream& flush();
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ostream& put(char c) { _strbuf->sputc(c); return *this; }
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#ifdef _STREAM_COMPAT
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/* Temporary binary compatibility. REMOVE IN NEXT RELEASE. */
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ostream& put(unsigned char c) { return put((char)c); }
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ostream& put(signed char c) { return put((char)c); }
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#endif
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ostream& write(const char *s, int n);
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ostream& write(const unsigned char *s, int n) { return write((const char*)s, n);}
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ostream& write(const signed char *s, int n) { return write((const char*)s, n);}
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ostream& write(const void *s, int n) { return write((const char*)s, n);}
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ostream& seekp(streampos);
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ostream& seekp(streamoff, _seek_dir);
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streampos tellp();
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ostream& form(const char *format ...);
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ostream& vform(const char *format, _IO_va_list args);
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ostream& operator<<(char c);
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ostream& operator<<(unsigned char c) { return (*this) << (char)c; }
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ostream& operator<<(signed char c) { return (*this) << (char)c; }
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ostream& operator<<(const char *s);
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ostream& operator<<(const unsigned char *s)
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{ return (*this) << (const char*)s; }
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ostream& operator<<(const signed char *s)
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{ return (*this) << (const char*)s; }
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ostream& operator<<(const void *p);
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ostream& operator<<(int n);
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ostream& operator<<(unsigned int n);
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ostream& operator<<(long n);
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ostream& operator<<(unsigned long n);
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#if defined(__GNUC__) && !defined(__STRICT_ANSI__)
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ostream& operator<<(long long n);
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ostream& operator<<(unsigned long long n);
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#endif
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ostream& operator<<(short n) {return operator<<((int)n);}
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ostream& operator<<(unsigned short n) {return operator<<((unsigned int)n);}
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#if _G_HAVE_BOOL
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ostream& operator<<(bool b) { return operator<<((int)b); }
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#endif
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ostream& operator<<(double n);
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ostream& operator<<(float n) { return operator<<((double)n); }
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ostream& operator<<(long double n) { return operator<<((double)n); }
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ostream& operator<<(__omanip func) { return (*func)(*this); }
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ostream& operator<<(__manip func) {(*func)(*this); return *this;}
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ostream& operator<<(streambuf*);
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#ifdef _STREAM_COMPAT
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streambuf* ostreambuf() const { return _strbuf; }
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#endif
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};
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class istream : virtual public ios
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{
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// NOTE: If fields are changed, you must fix _fake_istream in stdstreams.C!
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protected:
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_IO_size_t _gcount;
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int _skip_ws();
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public:
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istream() { _gcount = 0; }
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istream(streambuf* sb, ostream*tied=NULL);
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istream& get(char* ptr, int len, char delim = '\n');
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istream& get(unsigned char* ptr, int len, char delim = '\n')
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{ return get((char*)ptr, len, delim); }
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istream& get(char& c);
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istream& get(unsigned char& c) { return get((char&)c); }
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istream& getline(char* ptr, int len, char delim = '\n');
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istream& getline(unsigned char* ptr, int len, char delim = '\n')
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{ return getline((char*)ptr, len, delim); }
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istream& get(signed char& c) { return get((char&)c); }
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istream& get(signed char* ptr, int len, char delim = '\n')
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{ return get((char*)ptr, len, delim); }
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istream& getline(signed char* ptr, int len, char delim = '\n')
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{ return getline((char*)ptr, len, delim); }
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istream& read(char *ptr, int n);
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istream& read(unsigned char *ptr, int n) { return read((char*)ptr, n); }
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istream& read(signed char *ptr, int n) { return read((char*)ptr, n); }
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istream& read(void *ptr, int n) { return read((char*)ptr, n); }
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istream& get(streambuf& sb, char delim = '\n');
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istream& gets(char **s, char delim = '\n');
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int ipfx(int need) {
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if (!good()) { set(ios::failbit); return 0; }
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else {
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if (_tie && (need == 0 || rdbuf()->in_avail() < need)) _tie->flush();
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if (!need && (flags() & ios::skipws)) return _skip_ws();
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else return 1;
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}
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}
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int ipfx0() { // Optimized version of ipfx(0).
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if (!good()) { set(ios::failbit); return 0; }
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else {
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if (_tie) _tie->flush();
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if (flags() & ios::skipws) return _skip_ws();
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else return 1;
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}
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}
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int ipfx1() { // Optimized version of ipfx(1).
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if (!good()) { set(ios::failbit); return 0; }
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else {
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if (_tie && rdbuf()->in_avail() == 0) _tie->flush();
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return 1;
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}
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}
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void isfx() { }
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int get() { if (!ipfx1()) return EOF;
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else { int ch = _strbuf->sbumpc();
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if (ch == EOF) set(ios::eofbit);
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return ch;
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} }
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int peek();
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_IO_size_t gcount() { return _gcount; }
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istream& ignore(int n=1, int delim = EOF);
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istream& seekg(streampos);
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istream& seekg(streamoff, _seek_dir);
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streampos tellg();
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istream& putback(char ch) {
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if (good() && _strbuf->sputbackc(ch) == EOF) clear(ios::badbit);
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return *this;}
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istream& unget() {
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if (good() && _strbuf->sungetc() == EOF) clear(ios::badbit);
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return *this;}
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istream& scan(const char *format ...);
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istream& vscan(const char *format, _IO_va_list args);
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#ifdef _STREAM_COMPAT
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istream& unget(char ch) { return putback(ch); }
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int skip(int i);
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streambuf* istreambuf() const { return _strbuf; }
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#endif
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istream& operator>>(char*);
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istream& operator>>(unsigned char* p) { return operator>>((char*)p); }
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istream& operator>>(signed char*p) { return operator>>((char*)p); }
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istream& operator>>(char& c);
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istream& operator>>(unsigned char& c) {return operator>>((char&)c);}
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istream& operator>>(signed char& c) {return operator>>((char&)c);}
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istream& operator>>(int&);
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istream& operator>>(long&);
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#if defined(__GNUC__) && !defined(__STRICT_ANSI__)
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istream& operator>>(long long&);
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istream& operator>>(unsigned long long&);
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#endif
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istream& operator>>(short&);
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istream& operator>>(unsigned int&);
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istream& operator>>(unsigned long&);
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istream& operator>>(unsigned short&);
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#if _G_HAVE_BOOL
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istream& operator>>(bool&);
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#endif
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istream& operator>>(float&);
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istream& operator>>(double&);
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istream& operator>>(long double&);
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istream& operator>>( __manip func) {(*func)(*this); return *this;}
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istream& operator>>(__imanip func) { return (*func)(*this); }
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istream& operator>>(streambuf*);
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};
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class iostream : public istream, public ostream
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{
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public:
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iostream() { }
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iostream(streambuf* sb, ostream*tied=NULL);
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};
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class _IO_istream_withassign : public istream {
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public:
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_IO_istream_withassign& operator=(istream&);
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};
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class _IO_ostream_withassign : public ostream {
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public:
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_IO_ostream_withassign& operator=(ostream&);
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};
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extern _IO_istream_withassign cin;
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// clog->rdbuf() == cerr->rdbuf()
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extern _IO_ostream_withassign cout, cerr, clog;
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struct Iostream_init { } ; // Compatibility hack for AT&T library.
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inline ios& dec(ios& i)
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{ i.setf(ios::dec, ios::dec|ios::hex|ios::oct); return i; }
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inline ios& hex(ios& i)
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{ i.setf(ios::hex, ios::dec|ios::hex|ios::oct); return i; }
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inline ios& oct(ios& i)
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{ i.setf(ios::oct, ios::dec|ios::hex|ios::oct); return i; }
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#endif /*!_IOSTREAM_H*/
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