111
|
1 ------------------------------------------------------------------------------
|
|
2 -- --
|
|
3 -- GNAT LIBRARY COMPONENTS --
|
|
4 -- --
|
|
5 -- A D A . C O N T A I N E R S . I N D E F I N I T E _ V E C T O R S --
|
|
6 -- --
|
|
7 -- S p e c --
|
|
8 -- --
|
|
9 -- Copyright (C) 2004-2017, Free Software Foundation, Inc. --
|
|
10 -- --
|
|
11 -- This specification is derived from the Ada Reference Manual for use with --
|
|
12 -- GNAT. The copyright notice above, and the license provisions that follow --
|
|
13 -- apply solely to the contents of the part following the private keyword. --
|
|
14 -- --
|
|
15 -- GNAT is free software; you can redistribute it and/or modify it under --
|
|
16 -- terms of the GNU General Public License as published by the Free Soft- --
|
|
17 -- ware Foundation; either version 3, or (at your option) any later ver- --
|
|
18 -- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
|
|
19 -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
|
|
20 -- or FITNESS FOR A PARTICULAR PURPOSE. --
|
|
21 -- --
|
|
22 -- As a special exception under Section 7 of GPL version 3, you are granted --
|
|
23 -- additional permissions described in the GCC Runtime Library Exception, --
|
|
24 -- version 3.1, as published by the Free Software Foundation. --
|
|
25 -- --
|
|
26 -- You should have received a copy of the GNU General Public License and --
|
|
27 -- a copy of the GCC Runtime Library Exception along with this program; --
|
|
28 -- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
|
|
29 -- <http://www.gnu.org/licenses/>. --
|
|
30 -- --
|
|
31 -- This unit was originally developed by Matthew J Heaney. --
|
|
32 ------------------------------------------------------------------------------
|
|
33
|
|
34 with Ada.Iterator_Interfaces;
|
|
35
|
|
36 with Ada.Containers.Helpers;
|
|
37 private with Ada.Finalization;
|
|
38 private with Ada.Streams;
|
|
39
|
|
40 generic
|
|
41 type Index_Type is range <>;
|
|
42 type Element_Type (<>) is private;
|
|
43
|
|
44 with function "=" (Left, Right : Element_Type) return Boolean is <>;
|
|
45
|
|
46 package Ada.Containers.Indefinite_Vectors is
|
|
47 pragma Annotate (CodePeer, Skip_Analysis);
|
|
48 pragma Preelaborate;
|
|
49 pragma Remote_Types;
|
|
50
|
|
51 subtype Extended_Index is Index_Type'Base
|
|
52 range Index_Type'First - 1 ..
|
|
53 Index_Type'Min (Index_Type'Base'Last - 1, Index_Type'Last) + 1;
|
|
54
|
|
55 No_Index : constant Extended_Index := Extended_Index'First;
|
|
56
|
|
57 type Vector is tagged private
|
|
58 with
|
|
59 Constant_Indexing => Constant_Reference,
|
|
60 Variable_Indexing => Reference,
|
|
61 Default_Iterator => Iterate,
|
|
62 Iterator_Element => Element_Type;
|
|
63
|
|
64 pragma Preelaborable_Initialization (Vector);
|
|
65
|
|
66 type Cursor is private;
|
|
67 pragma Preelaborable_Initialization (Cursor);
|
|
68
|
|
69 Empty_Vector : constant Vector;
|
|
70
|
|
71 No_Element : constant Cursor;
|
|
72
|
|
73 function Has_Element (Position : Cursor) return Boolean;
|
|
74
|
|
75 package Vector_Iterator_Interfaces is new
|
|
76 Ada.Iterator_Interfaces (Cursor, Has_Element);
|
|
77
|
|
78 overriding function "=" (Left, Right : Vector) return Boolean;
|
|
79
|
|
80 function To_Vector (Length : Count_Type) return Vector;
|
|
81
|
|
82 function To_Vector
|
|
83 (New_Item : Element_Type;
|
|
84 Length : Count_Type) return Vector;
|
|
85
|
|
86 function "&" (Left, Right : Vector) return Vector;
|
|
87
|
|
88 function "&" (Left : Vector; Right : Element_Type) return Vector;
|
|
89
|
|
90 function "&" (Left : Element_Type; Right : Vector) return Vector;
|
|
91
|
|
92 function "&" (Left, Right : Element_Type) return Vector;
|
|
93
|
|
94 function Capacity (Container : Vector) return Count_Type;
|
|
95
|
|
96 procedure Reserve_Capacity
|
|
97 (Container : in out Vector;
|
|
98 Capacity : Count_Type);
|
|
99
|
|
100 function Length (Container : Vector) return Count_Type;
|
|
101
|
|
102 procedure Set_Length
|
|
103 (Container : in out Vector;
|
|
104 Length : Count_Type);
|
|
105
|
|
106 function Is_Empty (Container : Vector) return Boolean;
|
|
107
|
|
108 procedure Clear (Container : in out Vector);
|
|
109
|
|
110 type Constant_Reference_Type
|
|
111 (Element : not null access constant Element_Type) is private
|
|
112 with
|
|
113 Implicit_Dereference => Element;
|
|
114
|
|
115 type Reference_Type (Element : not null access Element_Type) is private
|
|
116 with
|
|
117 Implicit_Dereference => Element;
|
|
118
|
|
119 function Constant_Reference
|
|
120 (Container : aliased Vector;
|
|
121 Position : Cursor) return Constant_Reference_Type;
|
|
122 pragma Inline (Constant_Reference);
|
|
123
|
|
124 function Reference
|
|
125 (Container : aliased in out Vector;
|
|
126 Position : Cursor) return Reference_Type;
|
|
127 pragma Inline (Reference);
|
|
128
|
|
129 function Constant_Reference
|
|
130 (Container : aliased Vector;
|
|
131 Index : Index_Type) return Constant_Reference_Type;
|
|
132 pragma Inline (Constant_Reference);
|
|
133
|
|
134 function Reference
|
|
135 (Container : aliased in out Vector;
|
|
136 Index : Index_Type) return Reference_Type;
|
|
137 pragma Inline (Reference);
|
|
138
|
|
139 function To_Cursor
|
|
140 (Container : Vector;
|
|
141 Index : Extended_Index) return Cursor;
|
|
142
|
|
143 function To_Index (Position : Cursor) return Extended_Index;
|
|
144
|
|
145 function Element
|
|
146 (Container : Vector;
|
|
147 Index : Index_Type) return Element_Type;
|
|
148
|
|
149 function Element (Position : Cursor) return Element_Type;
|
|
150
|
|
151 procedure Replace_Element
|
|
152 (Container : in out Vector;
|
|
153 Index : Index_Type;
|
|
154 New_Item : Element_Type);
|
|
155
|
|
156 procedure Replace_Element
|
|
157 (Container : in out Vector;
|
|
158 Position : Cursor;
|
|
159 New_Item : Element_Type);
|
|
160
|
|
161 procedure Query_Element
|
|
162 (Container : Vector;
|
|
163 Index : Index_Type;
|
|
164 Process : not null access procedure (Element : Element_Type));
|
|
165
|
|
166 procedure Query_Element
|
|
167 (Position : Cursor;
|
|
168 Process : not null access procedure (Element : Element_Type));
|
|
169
|
|
170 procedure Update_Element
|
|
171 (Container : in out Vector;
|
|
172 Index : Index_Type;
|
|
173 Process : not null access procedure (Element : in out Element_Type));
|
|
174
|
|
175 procedure Update_Element
|
|
176 (Container : in out Vector;
|
|
177 Position : Cursor;
|
|
178 Process : not null access procedure (Element : in out Element_Type));
|
|
179
|
|
180 procedure Assign (Target : in out Vector; Source : Vector);
|
|
181
|
|
182 function Copy (Source : Vector; Capacity : Count_Type := 0) return Vector;
|
|
183
|
|
184 procedure Move (Target : in out Vector; Source : in out Vector);
|
|
185
|
|
186 procedure Insert
|
|
187 (Container : in out Vector;
|
|
188 Before : Extended_Index;
|
|
189 New_Item : Vector);
|
|
190
|
|
191 procedure Insert
|
|
192 (Container : in out Vector;
|
|
193 Before : Cursor;
|
|
194 New_Item : Vector);
|
|
195
|
|
196 procedure Insert
|
|
197 (Container : in out Vector;
|
|
198 Before : Cursor;
|
|
199 New_Item : Vector;
|
|
200 Position : out Cursor);
|
|
201
|
|
202 procedure Insert
|
|
203 (Container : in out Vector;
|
|
204 Before : Extended_Index;
|
|
205 New_Item : Element_Type;
|
|
206 Count : Count_Type := 1);
|
|
207
|
|
208 procedure Insert
|
|
209 (Container : in out Vector;
|
|
210 Before : Cursor;
|
|
211 New_Item : Element_Type;
|
|
212 Count : Count_Type := 1);
|
|
213
|
|
214 procedure Insert
|
|
215 (Container : in out Vector;
|
|
216 Before : Cursor;
|
|
217 New_Item : Element_Type;
|
|
218 Position : out Cursor;
|
|
219 Count : Count_Type := 1);
|
|
220
|
|
221 procedure Prepend
|
|
222 (Container : in out Vector;
|
|
223 New_Item : Vector);
|
|
224
|
|
225 procedure Prepend
|
|
226 (Container : in out Vector;
|
|
227 New_Item : Element_Type;
|
|
228 Count : Count_Type := 1);
|
|
229
|
|
230 procedure Append
|
|
231 (Container : in out Vector;
|
|
232 New_Item : Vector);
|
|
233
|
|
234 procedure Append
|
|
235 (Container : in out Vector;
|
|
236 New_Item : Element_Type;
|
|
237 Count : Count_Type := 1);
|
|
238
|
|
239 procedure Insert_Space
|
|
240 (Container : in out Vector;
|
|
241 Before : Extended_Index;
|
|
242 Count : Count_Type := 1);
|
|
243
|
|
244 procedure Insert_Space
|
|
245 (Container : in out Vector;
|
|
246 Before : Cursor;
|
|
247 Position : out Cursor;
|
|
248 Count : Count_Type := 1);
|
|
249
|
|
250 procedure Delete
|
|
251 (Container : in out Vector;
|
|
252 Index : Extended_Index;
|
|
253 Count : Count_Type := 1);
|
|
254
|
|
255 procedure Delete
|
|
256 (Container : in out Vector;
|
|
257 Position : in out Cursor;
|
|
258 Count : Count_Type := 1);
|
|
259
|
|
260 procedure Delete_First
|
|
261 (Container : in out Vector;
|
|
262 Count : Count_Type := 1);
|
|
263
|
|
264 procedure Delete_Last
|
|
265 (Container : in out Vector;
|
|
266 Count : Count_Type := 1);
|
|
267
|
|
268 procedure Reverse_Elements (Container : in out Vector);
|
|
269
|
|
270 procedure Swap (Container : in out Vector; I, J : Index_Type);
|
|
271
|
|
272 procedure Swap (Container : in out Vector; I, J : Cursor);
|
|
273
|
|
274 function First_Index (Container : Vector) return Index_Type;
|
|
275
|
|
276 function First (Container : Vector) return Cursor;
|
|
277
|
|
278 function First_Element (Container : Vector) return Element_Type;
|
|
279
|
|
280 function Last_Index (Container : Vector) return Extended_Index;
|
|
281
|
|
282 function Last (Container : Vector) return Cursor;
|
|
283
|
|
284 function Last_Element (Container : Vector) return Element_Type;
|
|
285
|
|
286 function Next (Position : Cursor) return Cursor;
|
|
287
|
|
288 procedure Next (Position : in out Cursor);
|
|
289
|
|
290 function Previous (Position : Cursor) return Cursor;
|
|
291
|
|
292 procedure Previous (Position : in out Cursor);
|
|
293
|
|
294 function Find_Index
|
|
295 (Container : Vector;
|
|
296 Item : Element_Type;
|
|
297 Index : Index_Type := Index_Type'First) return Extended_Index;
|
|
298
|
|
299 function Find
|
|
300 (Container : Vector;
|
|
301 Item : Element_Type;
|
|
302 Position : Cursor := No_Element) return Cursor;
|
|
303
|
|
304 function Reverse_Find_Index
|
|
305 (Container : Vector;
|
|
306 Item : Element_Type;
|
|
307 Index : Index_Type := Index_Type'Last) return Extended_Index;
|
|
308
|
|
309 function Reverse_Find
|
|
310 (Container : Vector;
|
|
311 Item : Element_Type;
|
|
312 Position : Cursor := No_Element) return Cursor;
|
|
313
|
|
314 function Contains
|
|
315 (Container : Vector;
|
|
316 Item : Element_Type) return Boolean;
|
|
317
|
|
318 procedure Iterate
|
|
319 (Container : Vector;
|
|
320 Process : not null access procedure (Position : Cursor));
|
|
321
|
|
322 function Iterate (Container : Vector)
|
|
323 return Vector_Iterator_Interfaces.Reversible_Iterator'class;
|
|
324
|
|
325 function Iterate
|
|
326 (Container : Vector;
|
|
327 Start : Cursor)
|
|
328 return Vector_Iterator_Interfaces.Reversible_Iterator'class;
|
|
329
|
|
330 procedure Reverse_Iterate
|
|
331 (Container : Vector;
|
|
332 Process : not null access procedure (Position : Cursor));
|
|
333
|
|
334 generic
|
|
335 with function "<" (Left, Right : Element_Type) return Boolean is <>;
|
|
336 package Generic_Sorting is
|
|
337
|
|
338 function Is_Sorted (Container : Vector) return Boolean;
|
|
339
|
|
340 procedure Sort (Container : in out Vector);
|
|
341
|
|
342 procedure Merge (Target : in out Vector; Source : in out Vector);
|
|
343
|
|
344 end Generic_Sorting;
|
|
345
|
|
346 private
|
|
347
|
|
348 pragma Inline (Append);
|
|
349 pragma Inline (First_Index);
|
|
350 pragma Inline (Last_Index);
|
|
351 pragma Inline (Element);
|
|
352 pragma Inline (First_Element);
|
|
353 pragma Inline (Last_Element);
|
|
354 pragma Inline (Query_Element);
|
|
355 pragma Inline (Update_Element);
|
|
356 pragma Inline (Replace_Element);
|
|
357 pragma Inline (Is_Empty);
|
|
358 pragma Inline (Contains);
|
|
359 pragma Inline (Next);
|
|
360 pragma Inline (Previous);
|
|
361
|
|
362 use Ada.Containers.Helpers;
|
|
363 package Implementation is new Generic_Implementation;
|
|
364 use Implementation;
|
|
365
|
|
366 type Element_Access is access Element_Type;
|
|
367
|
|
368 type Elements_Array is array (Index_Type range <>) of Element_Access;
|
|
369 function "=" (L, R : Elements_Array) return Boolean is abstract;
|
|
370
|
|
371 type Elements_Type (Last : Extended_Index) is limited record
|
|
372 EA : Elements_Array (Index_Type'First .. Last);
|
|
373 end record;
|
|
374
|
|
375 type Elements_Access is access all Elements_Type;
|
|
376
|
|
377 use Finalization;
|
|
378 use Streams;
|
|
379
|
|
380 type Vector is new Controlled with record
|
|
381 Elements : Elements_Access := null;
|
|
382 Last : Extended_Index := No_Index;
|
|
383 TC : aliased Tamper_Counts;
|
|
384 end record;
|
|
385
|
|
386 overriding procedure Adjust (Container : in out Vector);
|
|
387 overriding procedure Finalize (Container : in out Vector);
|
|
388
|
|
389 procedure Write
|
|
390 (Stream : not null access Root_Stream_Type'Class;
|
|
391 Container : Vector);
|
|
392
|
|
393 for Vector'Write use Write;
|
|
394
|
|
395 procedure Read
|
|
396 (Stream : not null access Root_Stream_Type'Class;
|
|
397 Container : out Vector);
|
|
398
|
|
399 for Vector'Read use Read;
|
|
400
|
|
401 type Vector_Access is access all Vector;
|
|
402 for Vector_Access'Storage_Size use 0;
|
|
403
|
|
404 type Cursor is record
|
|
405 Container : Vector_Access;
|
|
406 Index : Index_Type := Index_Type'First;
|
|
407 end record;
|
|
408
|
|
409 procedure Read
|
|
410 (Stream : not null access Root_Stream_Type'Class;
|
|
411 Position : out Cursor);
|
|
412
|
|
413 for Cursor'Read use Read;
|
|
414
|
|
415 procedure Write
|
|
416 (Stream : not null access Root_Stream_Type'Class;
|
|
417 Position : Cursor);
|
|
418
|
|
419 for Cursor'Write use Write;
|
|
420
|
|
421 subtype Reference_Control_Type is Implementation.Reference_Control_Type;
|
|
422 -- It is necessary to rename this here, so that the compiler can find it
|
|
423
|
|
424 type Constant_Reference_Type
|
|
425 (Element : not null access constant Element_Type) is
|
|
426 record
|
|
427 Control : Reference_Control_Type :=
|
|
428 raise Program_Error with "uninitialized reference";
|
|
429 -- The RM says, "The default initialization of an object of
|
|
430 -- type Constant_Reference_Type or Reference_Type propagates
|
|
431 -- Program_Error."
|
|
432 end record;
|
|
433
|
|
434 procedure Write
|
|
435 (Stream : not null access Root_Stream_Type'Class;
|
|
436 Item : Constant_Reference_Type);
|
|
437
|
|
438 for Constant_Reference_Type'Write use Write;
|
|
439
|
|
440 procedure Read
|
|
441 (Stream : not null access Root_Stream_Type'Class;
|
|
442 Item : out Constant_Reference_Type);
|
|
443
|
|
444 for Constant_Reference_Type'Read use Read;
|
|
445
|
|
446 type Reference_Type
|
|
447 (Element : not null access Element_Type) is
|
|
448 record
|
|
449 Control : Reference_Control_Type :=
|
|
450 raise Program_Error with "uninitialized reference";
|
|
451 -- The RM says, "The default initialization of an object of
|
|
452 -- type Constant_Reference_Type or Reference_Type propagates
|
|
453 -- Program_Error."
|
|
454 end record;
|
|
455
|
|
456 procedure Write
|
|
457 (Stream : not null access Root_Stream_Type'Class;
|
|
458 Item : Reference_Type);
|
|
459
|
|
460 for Reference_Type'Write use Write;
|
|
461
|
|
462 procedure Read
|
|
463 (Stream : not null access Root_Stream_Type'Class;
|
|
464 Item : out Reference_Type);
|
|
465
|
|
466 for Reference_Type'Read use Read;
|
|
467
|
|
468 -- Three operations are used to optimize in the expansion of "for ... of"
|
|
469 -- loops: the Next(Cursor) procedure in the visible part, and the following
|
|
470 -- Pseudo_Reference and Get_Element_Access functions. See Exp_Ch5 for
|
|
471 -- details.
|
|
472
|
|
473 function Pseudo_Reference
|
|
474 (Container : aliased Vector'Class) return Reference_Control_Type;
|
|
475 pragma Inline (Pseudo_Reference);
|
|
476 -- Creates an object of type Reference_Control_Type pointing to the
|
|
477 -- container, and increments the Lock. Finalization of this object will
|
|
478 -- decrement the Lock.
|
|
479
|
|
480 function Get_Element_Access
|
|
481 (Position : Cursor) return not null Element_Access;
|
|
482 -- Returns a pointer to the element designated by Position.
|
|
483
|
|
484 No_Element : constant Cursor := Cursor'(null, Index_Type'First);
|
|
485
|
|
486 Empty_Vector : constant Vector := (Controlled with others => <>);
|
|
487
|
|
488 type Iterator is new Limited_Controlled and
|
|
489 Vector_Iterator_Interfaces.Reversible_Iterator with
|
|
490 record
|
|
491 Container : Vector_Access;
|
|
492 Index : Index_Type'Base;
|
|
493 end record
|
|
494 with Disable_Controlled => not T_Check;
|
|
495
|
|
496 overriding procedure Finalize (Object : in out Iterator);
|
|
497
|
|
498 overriding function First (Object : Iterator) return Cursor;
|
|
499 overriding function Last (Object : Iterator) return Cursor;
|
|
500
|
|
501 overriding function Next
|
|
502 (Object : Iterator;
|
|
503 Position : Cursor) return Cursor;
|
|
504
|
|
505 overriding function Previous
|
|
506 (Object : Iterator;
|
|
507 Position : Cursor) return Cursor;
|
|
508
|
|
509 end Ada.Containers.Indefinite_Vectors;
|