source: libcfa/src/fstream.hfa @ 00e9be9

arm-ehjacob/cs343-translationnew-ast-unique-expr
Last change on this file since 00e9be9 was 00e9be9, checked in by Peter A. Buhr <pabuhr@…>, 7 months ago

add stream function clear, change eof to return bool

  • Property mode set to 100644
File size: 4.2 KB
Line 
1//
2// Cforall Version 1.0.0 Copyright (C) 2015 University of Waterloo
3//
4// The contents of this file are covered under the licence agreement in the
5// file "LICENCE" distributed with Cforall.
6//
7// fstream --
8//
9// Author           : Peter A. Buhr
10// Created On       : Wed May 27 17:56:53 2015
11// Last Modified By : Peter A. Buhr
12// Last Modified On : Wed Apr 28 20:37:57 2021
13// Update Count     : 230
14//
15
16#pragma once
17
18#include "bits/weakso_locks.hfa"                                                // mutex_lock
19#include "iostream.hfa"
20#include <exception.hfa>
21
22
23// *********************************** ofstream ***********************************
24
25
26enum { ofstream_sepSize = 16 };
27struct ofstream {
28        void * file$;
29        bool sepDefault$;
30        bool sepOnOff$;
31        bool nlOnOff$;
32        bool prt$;                                                                                      // print text
33        bool sawNL$;
34        const char * sepCur$;
35        char separator$[ofstream_sepSize];
36        char tupleSeparator$[ofstream_sepSize];
37        multiple_acquisition_lock lock$;
38        bool acquired$;
39}; // ofstream
40
41// Satisfies ostream
42
43// private
44bool sepPrt$( ofstream & );
45void sepReset$( ofstream & );
46void sepReset$( ofstream &, bool );
47const char * sepGetCur$( ofstream & );
48void sepSetCur$( ofstream &, const char [] );
49bool getNL$( ofstream & );
50void setNL$( ofstream &, bool );
51bool getANL$( ofstream & );
52bool getPrt$( ofstream & );
53void setPrt$( ofstream &, bool );
54
55// public
56void sepOn( ofstream & );
57void sepOff( ofstream & );
58bool sepDisable( ofstream & );
59bool sepEnable( ofstream & );
60void nlOn( ofstream & );
61void nlOff( ofstream & );
62
63const char * sepGet( ofstream & );
64void sepSet( ofstream &, const char [] );
65const char * sepGetTuple( ofstream & );
66void sepSetTuple( ofstream &, const char [] );
67
68void ends( ofstream & );
69int fmt( ofstream &, const char format[], ... ) __attribute__(( format(printf, 2, 3) ));
70
71bool fail( ofstream & );
72void clear( ofstream & );
73int flush( ofstream & );
74void open( ofstream &, const char name[], const char mode[] ); // FIX ME: use default = "w"
75void open( ofstream &, const char name[] );
76void close( ofstream & );
77ofstream & write( ofstream &, const char data[], size_t size );
78
79void acquire( ofstream & );
80void release( ofstream & );
81
82struct osacquire {
83        ofstream & os;
84};
85void ?{}( osacquire & acq, ofstream & );
86void ^?{}( osacquire & acq );
87
88void ?{}( ofstream & );
89void ?{}( ofstream &, const char name[], const char mode[] ); // FIX ME: use default = "w"
90void ?{}( ofstream &, const char name[] );
91void ^?{}( ofstream & );
92
93// private
94static inline ofstream & nl$( ofstream & os ) { return nl( os ); } // remember basic_ostream nl
95// public
96ofstream & nl( ofstream & os );                                                 // override basic_ostream nl
97
98extern ofstream & sout, & stdout, & serr, & stderr;             // aliases
99extern ofstream & exit, & abort;
100
101
102// *********************************** ifstream ***********************************
103
104
105struct ifstream {
106        void * file$;
107        bool nlOnOff$;
108        multiple_acquisition_lock lock$;
109        bool acquired$;
110}; // ifstream
111
112// Satisfies istream
113
114// public
115void nlOn( ifstream & );
116void nlOff( ifstream & );
117bool getANL( ifstream & );
118void ends( ifstream & );
119int fmt( ifstream &, const char format[], ... ) __attribute__(( format(scanf, 2, 3) ));
120
121bool fail( ifstream & is );
122void clear( ifstream & );
123bool eof( ifstream & is );
124void open( ifstream & is, const char name[], const char mode[] ); // FIX ME: use default = "r"
125void open( ifstream & is, const char name[] );
126void close( ifstream & is );
127ifstream & read( ifstream & is, char data[], size_t size );
128ifstream & ungetc( ifstream & is, char c );
129
130void acquire( ifstream & is );
131void release( ifstream & is );
132
133struct isacquire {
134        ifstream & is;
135};
136void ?{}( isacquire & acq, ifstream & is );
137void ^?{}( isacquire & acq );
138
139void ?{}( ifstream & is );
140void ?{}( ifstream & is, const char name[], const char mode[] ); // FIX ME: use default = "r"
141void ?{}( ifstream & is, const char name[] );
142void ^?{}( ifstream & is );
143
144extern ifstream & sin, & stdin;                                                 // aliases
145
146
147// *********************************** exceptions ***********************************
148
149
150EHM_EXCEPTION(Open_Failure)(
151        union {
152                ofstream * ostream;
153                ifstream * istream;
154        };
155        // TEMPORARY: need polymorphic exceptions
156        int tag;                                                                                        // 1 => ostream; 0 => istream
157);
158
159void ?{}( Open_Failure & this, ofstream & );
160void ?{}( Open_Failure & this, ifstream & );
161
162// Local Variables: //
163// mode: c //
164// tab-width: 4 //
165// End: //
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