source: mainline/uspace/lib/cpp/include/impl/ios.hpp@ e1a3ab7

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since e1a3ab7 was e1a3ab7, checked in by Dzejrou <dzejrou@…>, 7 years ago

cpp: added declaration of ios_base and dummy implementations of some dependencies
  • Property mode set to 100644
File size: 6.0 KB
Line 
1/*
2 * Copyright (c) 2017 Jaroslav Jindrak
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * - Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * - Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * - The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29#ifndef LIBCPP_IOS
30#define LIBCPP_IOS
31
32#include <cstdlib>
33#include <locale>
34#include <system_error>
35
36namespace std
37{
38 using streamoff = long long;
39 using streamsize = ssize_t;
40
41 /**
42 * 27.5.3, ios_base:
43 */
44
45 class ios_base
46 {
47 public:
48 virtual ~ios_base();
49
50 ios_base(const ios_base&) = delete;
51 ios_base& operator=(const ios_base&) = delete;
52
53 /**
54 * 27.5.3.1.1, failure:
55 */
56
57 class failure: public system_error
58 {
59 // TODO: implement
60 };
61
62 /**
63 * 27.5.3.1.2, fmtflags:
64 */
65
66 using fmtflags = uint32_t;
67 static constexpr fmtflags boolalpha = 0b00'0000'0000'0000'0001;
68 static constexpr fmtflags dec = 0b00'0000'0000'0000'0010;
69 static constexpr fmtflags fixed = 0b00'0000'0000'0000'0100;
70 static constexpr fmtflags hex = 0b00'0000'0000'0000'1000;
71 static constexpr fmtflags internal = 0b00'0000'0000'0001'0000;
72 static constexpr fmtflags left = 0b00'0000'0000'0010'0000;
73 static constexpr fmtflags oct = 0b00'0000'0000'0100'0000;
74 static constexpr fmtflags right = 0b00'0000'0000'1000'0000;
75 static constexpr fmtflags scientific = 0b00'0000'0001'0000'0000;
76 static constexpr fmtflags showbase = 0b00'0000'0010'0000'0000;
77 static constexpr fmtflags showpoint = 0b00'0000'0100'0000'0000;
78 static constexpr fmtflags showpos = 0b00'0000'1000'0000'0000;
79 static constexpr fmtflags skipws = 0b00'0001'0000'0000'0000;
80 static constexpr fmtflags unitbuf = 0b00'0010'0000'0000'0000;
81 static constexpr fmtflags uppercase = 0b00'0100'0000'0000'0000;
82 static constexpr fmtflags adjustfield = 0b00'1000'0000'0000'0000;
83 static constexpr fmtflags basefield = 0b01'0000'0000'0000'0000;
84 static constexpr fmtflags floatfield = 0b10'0000'0000'0000'0000;
85
86 /**
87 * 27.5.3.1.3, iostate:
88 */
89
90 using iostate = uint8_t;
91 static constexpr iostate badbit = 0b0001;
92 static constexpr iostate eofbit = 0b0010;
93 static constexpr iostate failbit = 0b0100;
94 static constexpr iostate goodbit = 0b1000;
95
96 /**
97 * 27.5.3.1.4, openmode:
98 */
99
100 using openmode = uint8_t;
101 static constexpr openmode app = 0b00'0001;
102 static constexpr openmode ate = 0b00'0010;
103 static constexpr openmode binary = 0b00'0100;
104 static constexpr openmode in = 0b00'1000;
105 static constexpr openmode out = 0b01'0000;
106 static constexpr openmode trunc = 0b10'0000;
107
108 /**
109 * 27.5.3.1.5, seekdir:
110 */
111
112 using seekdir = uint8_t;
113 static constexpr seekdir beg = 0b001;
114 static constexpr seekdir cur = 0b010;
115 static constexpr seekdir end = 0b100;
116
117 /**
118 * 27.5.3.1.6, class Init:
119 */
120
121 class Init
122 {
123 // TODO: implement
124 };
125
126 /**
127 * 27.5.3.2, fmtflags state:
128 */
129
130 fmtflags flags() const;
131 fmtflags flags(fmtflags fmtfl);
132 fmtflags setf(fmtflags fmtfl);
133 fmtflags setf(fmtflags fmtfl, fmtflags mask);
134 void unsetf(fmtflags mask);
135
136 streamsize precision() const;
137 streamsize precision(streamsize prec);
138 streamsize width() const;
139 streamsize width(streamsize wide);
140
141 /**
142 * 27.5.3.3, locales:
143 */
144
145 locale imbue(const locale& loc);
146 locale getloc() const;
147
148 /**
149 * 27.5.3.5, storage:
150 */
151
152 static int xalloc();
153 long& iword(int index);
154 void*& pword(int index);
155
156 /**
157 * 27.5.3.6, callbacks:
158 */
159
160 enum event
161 {
162 erase_event,
163 imbue_event,
164 copyfmt_event
165 };
166
167 using event_callback = void (*)(event, ios_base&, int);
168 void register_callback(event_callback fn, int index);
169
170 static bool sync_with_stdio(bool sync = true);
171
172 protected:
173 ios_base();
174
175 private:
176 static int index_{};
177
178 long* iarray_;
179 void** parray_;
180 };
181}
182
183#endif
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