summaryrefslogtreecommitdiff
path: root/libstdc++-v3/testsuite/util/testsuite_character.h
blob: ceda1f5125e09b13df91feccbbbe4c73523598cc (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
// -*- C++ -*-

// Testing character type and state type with char_traits and codecvt
// specializations for the C++ library testsuite.
//
// Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009
// Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library.  This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the
// Free Software Foundation; either version 3, or (at your option)
// any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License along
// with this library; see the file COPYING3.  If not see
// <http://www.gnu.org/licenses/>.
//

#ifndef _GLIBCXX_TESTSUITE_CHARACTER_H
#define _GLIBCXX_TESTSUITE_CHARACTER_H

#include <climits>
#include <string> // for char_traits
#include <locale> // for codecvt
#include <algorithm> // for transform
#include <ext/pod_char_traits.h>

namespace __gnu_test
{  
  struct pod_int
  {
    int value;

#ifdef __GXX_EXPERIMENTAL_CXX0X__
    // For std::iota.
    pod_int&
    operator++()
    {
      ++value;
      return *this;
    }
#endif
  };

  // For 20.1 requirements for instantiable type: equality comparable
  // and less than comparable.
  inline bool
  operator==(const pod_int& lhs, const pod_int& rhs)
  { return lhs.value == rhs.value; }
  
  inline bool
  operator<(const pod_int& lhs, const pod_int& rhs)
  { return lhs.value < rhs.value; }

  // For 26 numeric algorithms requirements, need addable,
  // subtractable, multiplicable.
  inline pod_int
  operator+(const pod_int& lhs, const pod_int& rhs)
  {
    pod_int ret = { lhs.value + rhs.value };
    return ret;
  }

  inline pod_int
  operator-(const pod_int& lhs, const pod_int& rhs)
  { 
    pod_int ret = { lhs.value - rhs.value };
    return ret;
  }

  inline pod_int
  operator*(const pod_int& lhs, const pod_int& rhs)
  { 
    pod_int ret = { lhs.value * rhs.value };
    return ret;
  }

  struct pod_state
  {
    unsigned long value;
  };

  inline bool
  operator==(const pod_state& lhs, const pod_state& rhs)
  { return lhs.value == rhs.value; }

  inline bool
  operator<(const pod_state& lhs, const pod_state& rhs)
  { return lhs.value < rhs.value; }

  // Alternate character types.
  using __gnu_cxx::character;
  typedef character<unsigned char, pod_int, pod_state>  	pod_char;
  typedef character<unsigned char, unsigned int, pod_state>  	pod_uchar;
  typedef character<unsigned short, unsigned int>	   	pod_ushort;
  typedef character<unsigned int, unsigned long>	   	pod_uint;  
}

namespace __gnu_cxx 
{
  // Specializations.
  // pod_char
  template<>
    template<typename V2>
      inline __gnu_test::pod_char::char_type
      __gnu_test::pod_char::char_type::from(const V2& v)
      {
	char_type ret = { static_cast<value_type>(v.value) };
	return ret;
      }

  template<>
    template<typename V2>
      inline V2
      __gnu_test::pod_char::char_type::to(const char_type& c)
      {
	V2 ret = { c.value };
	return ret;
      }
  
  template<>
    template<typename V2>
      inline __gnu_test::pod_uchar::char_type
      __gnu_test::pod_uchar::char_type::from(const V2& v)
      {
	char_type ret;
	ret.value = (v >> 5);
	return ret;
      }

  template<>
    template<typename V2>
      inline V2
      __gnu_test::pod_uchar::char_type::to(const char_type& c)
      { return static_cast<V2>(c.value << 5); }
} // namespace __gnu_test

namespace std
{
  // codecvt specialization
  //
  // The conversion performed by the specialization is not supposed to
  // be useful, rather it has been designed to demonstrate the
  // essential features of stateful conversions:
  // * Number and value of bytes for each internal character depends on the
  //   state in addition to the character itself.
  // * Unshift produces an unshift sequence and resets the state. On input
  //   the unshift sequence causes the state to be reset.
  //
  // The conversion for output is as follows:
  // 1. Calculate the value tmp by xor-ing the state and the internal
  //    character
  // 2. Split tmp into either two or three bytes depending on the value of
  //    state. Output those bytes.
  // 3. tmp becomes the new value of state.
  template<>
    class codecvt<__gnu_test::pod_uchar, char, __gnu_test::pod_state>
    : public __codecvt_abstract_base<__gnu_test::pod_uchar, char, 
				     __gnu_test::pod_state>
    {
    public:
      typedef codecvt_base::result	result;
      typedef __gnu_test::pod_uchar 	intern_type;
      typedef char 			extern_type;
      typedef __gnu_test::pod_state 	state_type;
      typedef __codecvt_abstract_base<intern_type, extern_type, state_type>
      base_type;

      explicit codecvt(size_t refs = 0) : base_type(refs)
      { }

      static locale::id id;

    protected:
      ~codecvt()
      { }

      virtual result
      do_out(state_type& state, const intern_type* from,
	     const intern_type* from_end, const intern_type*& from_next,
	     extern_type* to, extern_type* to_limit,
	     extern_type*& to_next) const
      {
	while (from < from_end && to < to_limit)
	  {
	    unsigned char tmp = (state.value ^ from->value);
	    if (state.value & 0x8)
	      {
		if (to >= to_limit - 2)
		  break;
		*to++ = (tmp & 0x7);
		*to++ = ((tmp >> 3) & 0x7);
		*to++ = ((tmp >> 6) & 0x3);
	      }
	    else
	      {
		if (to >= to_limit - 1)
		  break;
		*to++ = (tmp & 0xf);
		*to++ = ((tmp >> 4) & 0xf);
	      }
	    state.value = tmp;
	    ++from;
	  }

	from_next = from;
	to_next = to;
	return (from < from_end) ? partial : ok;
      }

      virtual result
      do_in(state_type& state, const extern_type* from,
	    const extern_type* from_end, const extern_type*& from_next,
	    intern_type* to, intern_type* to_limit,
	    intern_type*& to_next) const
      {
	while (from < from_end && to < to_limit)
	  {
	    unsigned char c = *from;
	    if (c & 0xc0)
	      {
		// Unshift sequence
		state.value &= c;
		++from;
		continue;
	      }

	    unsigned char tmp;
	    if (state.value & 0x8)
	      {
		if (from >= from_end - 2)
		  break;
		tmp = (*from++ & 0x7);
		tmp |= ((*from++ << 3) & 0x38);
		tmp |= ((*from++ << 6) & 0xc0);
	      }
	    else
	      {
		if (from >= from_end - 1)
		  break;
		tmp = (*from++ & 0xf);
		tmp |= ((*from++ << 4) & 0xf0);
	      }
	    to->value = (tmp ^ state.value);
	    state.value = tmp;
	    ++to;
	  }

	from_next = from;
	to_next = to;
	return (from < from_end) ? partial : ok;
      }

      virtual result
      do_unshift(state_type& state, extern_type* to, extern_type* to_limit,
		 extern_type*& to_next) const
      {
	for (unsigned int i = 0; i < CHAR_BIT; ++i)
	  {
	    unsigned int mask = (1 << i);
	    if (state.value & mask)
	      {
		if (to == to_limit)
		  {
		    to_next = to;
		    return partial;
		  }

		state.value &= ~mask;
		*to++ = static_cast<unsigned char>(~mask);
	      }
	  }

	to_next = to;
	return state.value == 0 ? ok : error;
      }

      virtual int
      do_encoding() const throw()
      { return -1; }

      virtual bool
      do_always_noconv() const throw()
      { return false; }

      virtual int
      do_length(state_type& state, const extern_type* from,
		const extern_type* end, size_t max) const
      {
	const extern_type* beg = from;
	while (from < end)
	  {
	    unsigned char c = *from;
	    if (c & 0xc0)
	      {
		// Unshift sequence
		state.value &= c;
		++from;
		continue;
	      }
	    
	    if (max == 0) break;

	    unsigned char tmp;
	    if (state.value & 0x8)
	      {
		if (from >= end - 2)
		  break;
		tmp = (*from++ & 0x7);
		tmp |= ((*from++ << 3) & 0x38);
		tmp |= ((*from++ << 6) & 0xc0);
	      }
	    else
	      {
		if (from >= end - 1)
		  break;
		tmp = (*from++ & 0xf);
		tmp |= ((*from++ << 4) & 0xf0);
	      }
	    state.value = tmp;
	    --max;
	  }
	return from - beg;
      }

      // Maximum 8 bytes unshift sequence followed by max 3 bytes for
      // one character.
      virtual int
      do_max_length() const throw()
      { return 11; }
    };

  template<>
    class ctype<__gnu_test::pod_uchar>
    : public __ctype_abstract_base<__gnu_test::pod_uchar>
    {
    public:
      typedef __gnu_test::pod_uchar char_type;

      explicit ctype(size_t refs  = 0)
      : __ctype_abstract_base<__gnu_test::pod_uchar>(refs) { }

      static locale::id id;

    protected:
      ~ctype()
      { }

      virtual bool
      do_is(mask, char_type) const
      { return false; }

      virtual const char_type*
      do_is(const char_type* low, const char_type* high, mask* vec) const
      {
	fill_n(vec, high - low, mask());
	return high;
      }

      virtual const char_type*
      do_scan_is(mask, const char_type*, const char_type* high) const
      { return high; }

      virtual const char_type*
      do_scan_not(mask, const char_type* low, const char_type*) const
      { return low; }

      virtual char_type
      do_toupper(char_type c) const
      { return c; }

      virtual const char_type*
      do_toupper(char_type*, const char_type*  high) const
      { return high; }

      virtual char_type
      do_tolower(char_type c) const
      { return c; }

      virtual const char_type*
      do_tolower(char_type*, const char_type*  high) const
      { return high; }

      virtual char_type
      do_widen(char c) const
      { return __gnu_test::pod_uchar::from<char>(c); }

      virtual const char* 
      do_widen(const char* low, const char* high, char_type* dest) const
      {
	transform(low, high, dest, &__gnu_test::pod_uchar::from<char>);
	return high;
      }

      virtual char
      do_narrow(char_type, char dfault) const
      { return dfault; }

      virtual const char_type*
      do_narrow(const char_type* low, const char_type* high,
		char dfault, char*  dest) const
      {
	fill_n(dest, high - low, dfault);
	return high;
      }
    };

  // numpunct specializations
  template<> 
    class numpunct<__gnu_test::pod_uint>
    : public locale::facet
    { 
    public: 
      typedef __gnu_test::pod_uint    char_type; 
      typedef basic_string<char_type> string_type; 
    
      static locale::id id; 
      
      explicit
      numpunct(size_t refs = 0)
      : locale::facet(refs) 
      { } 
 
      char_type
      decimal_point() const 
      { return this->do_decimal_point(); } 
 
      char_type
      thousands_sep() const 
      { return this->do_thousands_sep(); } 
 
      string
      grouping() const 
      { return this->do_grouping(); } 
 
      string_type
      truename() const 
      { return this->do_truename(); } 
 
      string_type
      falsename() const 
      { return this->do_falsename(); } 
 
    protected: 
      ~numpunct()
      { } 
 
      virtual char_type
      do_decimal_point() const 
      { return char_type(); } 
 
      virtual char_type
      do_thousands_sep() const 
      { return char_type(); } 
 
      virtual string
      do_grouping() const 
      { return string(); } 
 
      virtual string_type
      do_truename() const 
      { return string_type(); }
 
      virtual string_type
      do_falsename() const 
      { return string_type(); } 
    };

  template<> 
    class moneypunct<__gnu_test::pod_uint>
    : public locale::facet, public money_base
    { 
    public: 
      typedef __gnu_test::pod_uint    char_type; 
      typedef basic_string<char_type> string_type; 
    
      static locale::id id; 
      static const bool intl = false;

      explicit
      moneypunct(size_t refs = 0)
      : locale::facet(refs) 
      { }
 
      char_type
      decimal_point() const 
      { return this->do_decimal_point(); } 
 
      char_type
      thousands_sep() const 
      { return this->do_thousands_sep(); }

      string
      grouping() const
      { return this->do_grouping(); }

      string_type
      curr_symbol() const 
      { return this->do_curr_symbol(); } 
 
      string_type
      positive_sign() const 
      { return this->do_positive_sign(); } 

      string_type
      negative_sign() const 
      { return this->do_negative_sign(); } 
      
      int
      frac_digits() const
      { return this->do_frac_digits(); }

      pattern
      pos_format() const
      { return this->do_pos_format(); }
 
      pattern
      neg_format() const
      { return this->do_neg_format(); }
  
    protected: 
      ~moneypunct() 
      { } 
 
      virtual char_type
      do_decimal_point() const 
      { return char_type(); } 
 
      virtual char_type
      do_thousands_sep() const 
      { return char_type(); } 
 
      virtual string
      do_grouping() const 
      { return string(); }

      virtual string_type
      do_curr_symbol() const 
      { return string_type(); } 
 
      string_type
      do_positive_sign() const 
      { return string_type(); } 

      string_type
      do_negative_sign() const 
      { return string_type(); } 
      
      int
      do_frac_digits() const
      { return 0; }

      pattern
      do_pos_format() const
      { return pattern(); }
 
      pattern
      do_neg_format() const
      { return pattern(); }
     };
} // namespace std

#endif // _GLIBCXX_TESTSUITE_CHARACTER_H