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// This is part of the iostream library, providing -*- C++ -*- input/output.
// Copyright (C) 1991 Per Bothner.
//
// 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, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
#ifndef _IOSTREAM_H
#ifdef __GNUG__
#pragma interface
#endif
#define _IOSTREAM_H
#include <streambuf.h>
class istream; class ostream;
typedef ios& (*__manip)(ios&);
typedef istream& (*__imanip)(istream&);
typedef ostream& (*__omanip)(ostream&);
extern istream& ws(istream& ins);
extern ostream& flush(ostream& outs);
extern ostream& endl(ostream& outs);
extern ostream& ends(ostream& outs);
class ostream : virtual public ios
{
// NOTE: If fields are changed, you must fix _fake_ostream in stdstreams.C!
void do_osfx();
public:
ostream() { }
ostream(streambuf* sb, ostream* tied=NULL);
int opfx() {
if (!good()) return 0; else { if (_tie) _tie->flush(); return 1;} }
void osfx() { if (flags() & (ios::unitbuf|ios::stdio))
do_osfx(); }
streambuf* ostreambuf() const { return _strbuf; }
ostream& flush();
ostream& put(char c) { _strbuf->sputc(c); return *this; }
ostream& put(unsigned char c) { return put((char)c); }
ostream& write(const char *s, int n);
ostream& write(const unsigned char *s, int n) { return write((const char*)s, n);}
#ifndef _G_BROKEN_SIGNED_CHAR
ostream& put(signed char c) { return put((char)c); }
ostream& write(const signed char *s, int n) { return write((const char*)s, n);}
#endif
ostream& write(const void *s, int n) { return write((const char*)s, n);}
ostream& seekp(streampos);
ostream& seekp(streamoff, _seek_dir);
streampos tellp();
ostream& form(const char *format ...);
ostream& vform(const char *format, _G_va_list args);
ostream& operator<<(char c);
ostream& operator<<(unsigned char c) { return (*this) << (char)c; }
#ifndef _G_BROKEN_SIGNED_CHAR
ostream& operator<<(signed char c) { return (*this) << (char)c; }
#endif
ostream& operator<<(const char *s);
ostream& operator<<(const unsigned char *s)
{ return (*this) << (const char*)s; }
#ifndef _G_BROKEN_SIGNED_CHAR
ostream& operator<<(const signed char *s)
{ return (*this) << (const char*)s; }
#endif
ostream& operator<<(void *p);
ostream& operator<<(int n);
ostream& operator<<(unsigned int n);
ostream& operator<<(long n);
ostream& operator<<(unsigned long n);
#ifdef __GNUG__
ostream& operator<<(long long n);
ostream& operator<<(unsigned long long n);
#endif
ostream& operator<<(short n) {return operator<<((int)n);}
ostream& operator<<(unsigned short n) {return operator<<((unsigned int)n);}
ostream& operator<<(double n);
ostream& operator<<(float n) { return operator<<((double)n); }
ostream& operator<<(__omanip func) { return (*func)(*this); }
ostream& operator<<(__manip func) {(*func)(*this); return *this;}
ostream& operator<<(streambuf*);
};
class istream : virtual public ios
{
// NOTE: If fields are changed, you must fix _fake_istream in stdstreams.C!
_G_ssize_t _gcount;
int _skip_ws();
public:
istream() { _gcount = 0; }
istream(streambuf* sb, ostream*tied=NULL);
streambuf* istreambuf() const { return _strbuf; }
istream& get(char* ptr, int len, char delim = '\n');
istream& get(unsigned char* ptr, int len, char delim = '\n')
{ return get((char*)ptr, len, delim); }
istream& get(char& c);
istream& get(unsigned char& c) { return get((char&)c); }
istream& getline(char* ptr, int len, char delim = '\n');
istream& getline(unsigned char* ptr, int len, char delim = '\n')
{ return getline((char*)ptr, len, delim); }
#ifndef _G_BROKEN_SIGNED_CHAR
istream& get(signed char& c) { return get((char&)c); }
istream& get(signed char* ptr, int len, char delim = '\n')
{ return get((char*)ptr, len, delim); }
istream& getline(signed char* ptr, int len, char delim = '\n')
{ return getline((char*)ptr, len, delim); }
#endif
istream& read(char *ptr, int n);
istream& read(unsigned char *ptr, int n) { return read((char*)ptr, n); }
#ifndef _G_BROKEN_SIGNED_CHAR
istream& read(signed char *ptr, int n) { return read((char*)ptr, n); }
#endif
istream& read(void *ptr, int n) { return read((char*)ptr, n); }
// Should get() and/or peek() set failbit and/or eofbit? FIXME!
istream& get(streambuf& sb, char delim = '\n');
istream& gets(char **s, char delim = '\n');
int ipfx(int need) {
if (!good()) { set(ios::failbit); return 0; }
if (_tie && (need == 0 || rdbuf()->in_avail() < need)) _tie->flush();
if (!need && (flags() & ios::skipws)) return _skip_ws();
return 1;
}
int ipfx0() { // Optimized version of ipfx(0).
if (!good()) { set(ios::failbit); return 0; }
if (_tie) _tie->flush();
if (flags() & ios::skipws) return _skip_ws();
return 1;
}
int ipfx1() { // Optimized version of ipfx(1).
if (!good()) { set(ios::failbit); return 0; }
if (_tie && rdbuf()->in_avail() == 0) _tie->flush();
return 1;
}
int get() { if (!ipfx1()) return EOF;
int ch = _strbuf->sbumpc();
if (ch == EOF) set(ios::eofbit);
return ch; }
int peek() { if (!ipfx1()) return EOF;
int ch = _strbuf->sgetc();
if (ch == EOF) set(ios::eofbit);
return ch; }
_G_ssize_t gcount() { return _gcount; }
istream& ignore(int n=1, int delim = EOF);
istream& seekg(streampos);
istream& seekg(streamoff, _seek_dir);
streampos tellg();
istream& putback(char ch) {
if (good() && _strbuf->sputbackc(ch) == EOF) clear(ios::badbit);
return *this;}
istream& unget() {
if (good() && _strbuf->sungetc() == EOF) clear(ios::badbit);
return *this;}
istream& scan(const char *format ...);
istream& vscan(const char *format, _G_va_list args);
#ifdef _STREAM_COMPAT
istream& unget(char ch) { return putback(ch); }
int skip(int i);
#endif
istream& operator>>(char*);
istream& operator>>(unsigned char* p) { return operator>>((char*)p); }
#ifndef _G_BROKEN_SIGNED_CHAR
istream& operator>>(signed char*p) { return operator>>((char*)p); }
#endif
istream& operator>>(char& c);
istream& operator>>(unsigned char& c) {return operator>>((char&)c);}
#ifndef _G_BROKEN_SIGNED_CHAR
istream& operator>>(signed char& c) {return operator>>((char&)c);}
#endif
istream& operator>>(int&);
istream& operator>>(long&);
#ifdef __GNUG__
istream& operator>>(long long&);
#endif
istream& operator>>(short&);
istream& operator>>(unsigned int&);
istream& operator>>(unsigned long&);
#ifdef __GNUG__
istream& operator>>(unsigned long long&);
#endif
istream& operator>>(unsigned short&);
istream& operator>>(float&);
istream& operator>>(double&);
istream& operator>>( __manip func) {(*func)(*this); return *this;}
istream& operator>>(__imanip func) { return (*func)(*this); }
istream& operator>>(streambuf*);
};
class iostream : public istream, public ostream
{
_G_ssize_t _gcount;
public:
iostream() { _gcount = 0; }
iostream(streambuf* sb, ostream*tied=NULL);
};
extern istream cin;
extern ostream cout, cerr, clog; // clog->rdbuf() == cerr->rdbuf()
struct Iostream_init { } ; // Compatibility hack for AT&T library.
inline ios& dec(ios& i)
{ i.setf(ios::dec, ios::dec|ios::hex|ios::oct); return i; }
inline ios& hex(ios& i)
{ i.setf(ios::hex, ios::dec|ios::hex|ios::oct); return i; }
inline ios& oct(ios& i)
{ i.setf(ios::oct, ios::dec|ios::hex|ios::oct); return i; }
#endif /*!_IOSTREAM_H*/
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