153 lines
5.4 KiB
C++
153 lines
5.4 KiB
C++
/***
|
|
*istream.h - definitions/declarations for the istream class
|
|
*
|
|
* Copyright (c) 1990-1993, Microsoft Corporation. All rights reserved.
|
|
*
|
|
*Purpose:
|
|
* This file defines the classes, values, macros, and functions
|
|
* used by the istream class.
|
|
* [AT&T C++]
|
|
*
|
|
****/
|
|
|
|
#ifndef _INC_ISTREAM
|
|
#define _INC_ISTREAM
|
|
|
|
#include <ios.h>
|
|
|
|
// C4069: "long double != double"
|
|
#pragma warning(disable:4069) // disable C4069 warning
|
|
// #pragma warning(default:4069) // use this to reenable, if desired
|
|
|
|
// C4505: "unreferenced local function has been removed"
|
|
#pragma warning(disable:4505) // disable C4505 warning
|
|
// #pragma warning(default:4505) // use this to reenable, if desired
|
|
|
|
// C4103 : "used #pragma pack to change alignment"
|
|
#pragma warning(disable:4103) // disable C4103 warning
|
|
// #pragma warning(default:4103) // use this to reenable, if desired
|
|
|
|
// Force word packing to avoid possible -Zp override
|
|
#pragma pack(4)
|
|
|
|
|
|
typedef long streamoff, streampos;
|
|
|
|
class istream : virtual public ios {
|
|
|
|
public:
|
|
istream(streambuf*);
|
|
virtual ~istream();
|
|
|
|
int ipfx(int =0);
|
|
void isfx() { unlockbuf(); unlock(); }
|
|
|
|
inline istream& operator>>(istream& (*_f)(istream&));
|
|
inline istream& operator>>(ios& (*_f)(ios&));
|
|
istream& operator>>(char *);
|
|
inline istream& operator>>(unsigned char *);
|
|
inline istream& operator>>(signed char *);
|
|
istream& operator>>(char &);
|
|
inline istream& operator>>(unsigned char &);
|
|
inline istream& operator>>(signed char &);
|
|
istream& operator>>(short &);
|
|
istream& operator>>(unsigned short &);
|
|
istream& operator>>(int &);
|
|
istream& operator>>(unsigned int &);
|
|
istream& operator>>(long &);
|
|
istream& operator>>(unsigned long &);
|
|
istream& operator>>(float &);
|
|
istream& operator>>(double &);
|
|
istream& operator>>(long double &);
|
|
istream& operator>>(streambuf*);
|
|
|
|
int get();
|
|
istream& get(char *,int,char ='\n');
|
|
inline istream& get(unsigned char *,int,char ='\n');
|
|
inline istream& get(signed char *,int,char ='\n');
|
|
istream& get(char &);
|
|
inline istream& get(unsigned char &);
|
|
inline istream& get(signed char &);
|
|
istream& get(streambuf&,char ='\n');
|
|
inline istream& getline(char *,int,char ='\n');
|
|
inline istream& getline(unsigned char *,int,char ='\n');
|
|
inline istream& getline(signed char *,int,char ='\n');
|
|
|
|
inline istream& ignore(int =1,int =EOF);
|
|
istream& read(char *,int);
|
|
inline istream& read(unsigned char *,int);
|
|
inline istream& read(signed char *,int);
|
|
|
|
int gcount() const { return x_gcount; }
|
|
int peek();
|
|
istream& putback(char);
|
|
int sync();
|
|
|
|
istream& seekg(streampos);
|
|
istream& seekg(streamoff,ios::seek_dir);
|
|
streampos tellg();
|
|
|
|
void eatwhite(); // consider: protect and friend with manipulator ws
|
|
protected:
|
|
istream();
|
|
istream(const istream&); // treat as private
|
|
istream& operator=(streambuf* _isb); // treat as private
|
|
istream& operator=(const istream& _is) { return operator=(_is.rdbuf()); }
|
|
int do_ipfx(int);
|
|
|
|
private:
|
|
istream(ios&);
|
|
int getint(char *);
|
|
int getdouble(char *, int);
|
|
int _fGline;
|
|
int x_gcount;
|
|
};
|
|
|
|
inline istream& istream::operator>>(istream& (*_f)(istream&)) { (*_f)(*this); return *this; }
|
|
inline istream& istream::operator>>(ios& (*_f)(ios&)) { (*_f)(*this); return *this; }
|
|
|
|
inline istream& istream::operator>>(unsigned char * _s) { return operator>>((char *)_s); }
|
|
inline istream& istream::operator>>(signed char * _s) { return operator>>((char *)_s); }
|
|
|
|
inline istream& istream::operator>>(unsigned char & _c) { return operator>>((char &) _c); }
|
|
inline istream& istream::operator>>(signed char & _c) { return operator>>((char &) _c); }
|
|
|
|
inline istream& istream::get(unsigned char * b, int lim ,char delim) { return get((char *)b, lim, delim); }
|
|
inline istream& istream::get(signed char * b, int lim, char delim) { return get((char *)b, lim, delim); }
|
|
|
|
inline istream& istream::get(unsigned char & _c) { return get((char &)_c); }
|
|
inline istream& istream::get(signed char & _c) { return get((char &)_c); }
|
|
|
|
inline istream& istream::getline(char * _b,int _lim,char _delim) { lock(); _fGline++; get(_b, _lim, _delim); unlock(); return *this; }
|
|
inline istream& istream::getline(unsigned char * _b,int _lim,char _delim) { lock(); _fGline++; get((char *)_b, _lim, _delim); unlock(); return *this; }
|
|
inline istream& istream::getline(signed char * _b,int _lim,char _delim) { lock(); _fGline++; get((char *)_b, _lim, _delim); unlock(); return *this; }
|
|
|
|
inline istream& istream::ignore(int _n,int delim) { lock(); _fGline++; return get((char *)0, _n+1, (char)delim); unlock(); return *this; }
|
|
|
|
inline istream& istream::read(unsigned char * _ptr, int _n) { return read((char *) _ptr, _n); }
|
|
inline istream& istream::read(signed char * _ptr, int _n) { return read((char *) _ptr, _n); }
|
|
|
|
class istream_withassign : public istream {
|
|
public:
|
|
istream_withassign();
|
|
istream_withassign(streambuf*);
|
|
~istream_withassign();
|
|
istream& operator=(const istream& _is) { return istream::operator=(_is); }
|
|
istream& operator=(streambuf* _isb) { return istream::operator=(_isb); }
|
|
};
|
|
|
|
#ifndef _WINDLL // Warning! Not available under Windows without QuickWin:
|
|
extern istream_withassign cin;
|
|
#endif
|
|
|
|
inline istream& ws(istream& _ins) { _ins.eatwhite(); return _ins; }
|
|
|
|
ios& dec(ios&);
|
|
ios& hex(ios&);
|
|
ios& oct(ios&);
|
|
|
|
// Restore default packing
|
|
#pragma pack()
|
|
|
|
#endif // !_INC_ISTREAM
|