windows-nt/Source/XPSP1/NT/base/crts/libw32/include/istream.h
2020-09-26 16:20:57 +08:00

189 lines
6.1 KiB
C++

/***
*istream.h - definitions/declarations for the istream class
*
* Copyright (c) 1990-2001, Microsoft Corporation. All rights reserved.
*
*Purpose:
* This file defines the classes, values, macros, and functions
* used by the istream class.
* [AT&T C++]
*
* [Public]
*
****/
#if _MSC_VER > 1000
#pragma once
#endif
#ifdef __cplusplus
#ifndef _INC_ISTREAM
#define _INC_ISTREAM
#if !defined(_WIN32)
#error ERROR: Only Win32 target supported!
#endif
#ifdef _MSC_VER
// Currently, all MS C compilers for Win32 platforms default to 8 byte
// alignment.
#pragma pack(push,8)
#include <useoldio.h>
#endif // _MSC_VER
/* Define _CRTIMP */
#ifndef _CRTIMP
#ifdef _DLL
#define _CRTIMP __declspec(dllimport)
#else /* ndef _DLL */
#define _CRTIMP
#endif /* _DLL */
#endif /* _CRTIMP */
#include <ios.h>
#ifdef _MSC_VER
// C4069: "long double != double"
#pragma warning(disable:4069) // disable C4069 warning
// #pragma warning(default:4069) // use this to reenable, if desired
// C4514: "unreferenced inline function has been removed"
#pragma warning(disable:4514) // disable C4514 warning
// #pragma warning(default:4514) // use this to reenable, if desired
#endif // _MSC_VER
typedef long streamoff, streampos;
class _CRTIMP istream : virtual public ios {
public:
istream(streambuf*);
virtual ~istream();
int ipfx(int =0);
void isfx() { unlockbuf(); unlock(); }
inline istream& operator>>(istream& (__cdecl * _f)(istream&));
inline istream& operator>>(ios& (__cdecl * _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();
inline 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();
protected:
istream();
istream(const istream&); // treat as private
istream& operator=(streambuf* _isb); // treat as private
istream& operator=(const istream& _is) { return operator=(_is.rdbuf()); }
istream& get(char *, int, int);
int do_ipfx(int);
private:
istream(ios&);
int getint(char *);
int getdouble(char *, int);
int _fGline;
int x_gcount;
};
inline istream& istream::operator>>(istream& (__cdecl * _f)(istream&)) { (*_f)(*this); return *this; }
inline istream& istream::operator>>(ios& (__cdecl * _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( char * _b, int _lim, char _delim) { return get( _b, _lim, (int)(unsigned char)_delim); }
inline istream& istream::get(unsigned char * _b, int _lim, char _delim) { return get((char *)_b, _lim, (int)(unsigned char)_delim); }
inline istream& istream::get(signed char * _b, int _lim, char _delim) { return get((char *)_b, _lim, (int)(unsigned char)_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, (int)(unsigned char)_delim); unlock(); return *this; }
inline istream& istream::getline(unsigned char * _b,int _lim,char _delim) { lock(); _fGline++; get((char *)_b, _lim, (int)(unsigned char)_delim); unlock(); return *this; }
inline istream& istream::getline( signed char * _b,int _lim,char _delim) { lock(); _fGline++; get((char *)_b, _lim, (int)(unsigned char)_delim); unlock(); return *this; }
inline istream& istream::ignore(int _n,int _delim) { lock(); _fGline++; get((char *)0, _n+1, _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 _CRTIMP 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); }
};
extern _CRTIMP istream_withassign cin;
inline _CRTIMP istream& __cdecl ws(istream& _ins) { _ins.eatwhite(); return _ins; }
_CRTIMP ios& __cdecl dec(ios&);
_CRTIMP ios& __cdecl hex(ios&);
_CRTIMP ios& __cdecl oct(ios&);
#ifdef _MSC_VER
// Restore default packing
#pragma pack(pop)
#endif // _MSC_VER
#endif // _INC_ISTREAM
#endif /* __cplusplus */