![[BACK]](/cvsweb/icons/back.gif){kind=icon}
Return to istream.h CVS log ![[TXT]](/cvsweb/icons/text.gif){kind=icon}
![[DIR]](/cvsweb/icons/dir.gif){kind=icon}
Up to [WindowsNT SDKs] / mstools / h|
Return to istream.h CVS log | Up to [WindowsNT SDKs] / mstools / h |
1.1 root 1: /***
2: *istream.h - definitions/declarations for the istream class
3: *
4: * Copyright (c) 1990-1992, Microsoft Corporation. All rights reserved.
5: *
6: *Purpose:
7: * This file defines the classes, values, macros, and functions
8: * used by the istream class.
9: * [AT&T C++]
10: *
11: ****/
12:
13: #ifndef _INC_ISTREAM
14: #define _INC_ISTREAM
15:
16: #include <ios.h>
17:
18: // Force word packing to avoid possible -Zp override
19: #pragma pack(4)
20:
21: #pragma warning(disable:4505) // disable unwanted /W4 warning
22: // #pragma warning(default:4505) // use this to reenable, if necessary
23:
24:
25: typedef long streamoff, streampos;
26:
27: class istream : virtual public ios {
28:
29: public:
30: istream(streambuf*);
31: virtual ~istream();
32:
33: int ipfx(int =0);
34: void isfx() { unlockbuf(); unlock(); }
35:
36: inline istream& operator>>(istream& (*_f)(istream&));
37: inline istream& operator>>(ios& (*_f)(ios&));
38: istream& operator>>(char *);
39: inline istream& operator>>(unsigned char *);
40: inline istream& operator>>(signed char *);
41: istream& operator>>(char &);
42: inline istream& operator>>(unsigned char &);
43: inline istream& operator>>(signed char &);
44: istream& operator>>(short &);
45: istream& operator>>(unsigned short &);
46: istream& operator>>(int &);
47: istream& operator>>(unsigned int &);
48: istream& operator>>(long &);
49: istream& operator>>(unsigned long &);
50: istream& operator>>(float &);
51: istream& operator>>(double &);
52: // istream& operator>>(long double &); // UNDONE:
53: istream& operator>>(streambuf*);
54:
55: int get();
56: istream& get(char *,int,char ='\n');
57: inline istream& get(unsigned char *,int,char ='\n');
58: inline istream& get(signed char *,int,char ='\n');
59: istream& get(char &);
60: inline istream& get(unsigned char &);
61: inline istream& get(signed char &);
62: istream& get(streambuf&,char ='\n');
63: inline istream& getline(char *,int,char ='\n');
64: inline istream& getline(unsigned char *,int,char ='\n');
65: inline istream& getline(signed char *,int,char ='\n');
66:
67: inline istream& ignore(int =1,int =EOF);
68: istream& read(char *,int);
69: inline istream& read(unsigned char *,int);
70: inline istream& read(signed char *,int);
71:
72: int gcount() const { return x_gcount; }
73: int peek();
74: istream& putback(char);
75: int sync();
76:
77: istream& seekg(streampos);
78: istream& seekg(streamoff,ios::seek_dir);
79: streampos tellg();
80:
81: void eatwhite(); // consider: protect and friend with manipulator ws
82: protected:
83: istream();
84: istream(const istream&); // treat as private
85: istream& operator=(streambuf* _isb); // treat as private
86: istream& operator=(const istream& _is) { return operator=(_is.rdbuf()); }
87: int do_ipfx(int);
88:
89: private:
90: istream(ios&);
91: int getint(char *);
92: int getdouble(char *, int);
93: int _fGline;
94: int x_gcount;
95: };
96:
97: inline istream& istream::operator>>(istream& (*_f)(istream&)) { (*_f)(*this); return *this; }
98: inline istream& istream::operator>>(ios& (*_f)(ios&)) { (*_f)(*this); return *this; }
99:
100: inline istream& istream::operator>>(unsigned char * _s) { return operator>>((char *)_s); }
101: inline istream& istream::operator>>(signed char * _s) { return operator>>((char *)_s); }
102:
103: inline istream& istream::operator>>(unsigned char & _c) { return operator>>((char &) _c); }
104: inline istream& istream::operator>>(signed char & _c) { return operator>>((char &) _c); }
105:
106: inline istream& istream::get(unsigned char * b, int lim ,char delim) { return get((char *)b, lim, delim); }
107: inline istream& istream::get(signed char * b, int lim, char delim) { return get((char *)b, lim, delim); }
108:
109: inline istream& istream::get(unsigned char & _c) { return get((char &)_c); }
110: inline istream& istream::get(signed char & _c) { return get((char &)_c); }
111:
112: inline istream& istream::getline(char * _b,int _lim,char _delim) { lock(); _fGline++; get(_b, _lim, _delim); unlock(); return *this; }
113: inline istream& istream::getline(unsigned char * _b,int _lim,char _delim) { lock(); _fGline++; get((char *)_b, _lim, _delim); unlock(); return *this; }
114: inline istream& istream::getline(signed char * _b,int _lim,char _delim) { lock(); _fGline++; get((char *)_b, _lim, _delim); unlock(); return *this; }
115:
116: inline istream& istream::ignore(int _n,int delim) { lock(); _fGline++; return get((char *)0, _n+1, (char)delim); unlock(); return *this; }
117:
118: inline istream& istream::read(unsigned char * _ptr, int _n) { return read((char *) _ptr, _n); }
119: inline istream& istream::read(signed char * _ptr, int _n) { return read((char *) _ptr, _n); }
120:
121: class istream_withassign : public istream {
122: public:
123: istream_withassign();
124: istream_withassign(streambuf*);
125: ~istream_withassign();
126: istream& operator=(const istream& _is) { return istream::operator=(_is); }
127: istream& operator=(streambuf* _isb) { return istream::operator=(_isb); }
128: };
129:
130: #ifndef _WINDLL // Warning! Not available under Windows without QuickWin:
131: extern istream_withassign cin;
132: #endif
133:
134: inline istream& ws(istream& _ins) { _ins.eatwhite(); return _ins; }
135:
136: ios& dec(ios&);
137: ios& hex(ios&);
138: ios& oct(ios&);
139:
140: // Restore default packing
141: #pragma pack()
142:
143: #endif // !_INC_ISTREAM
This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.