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
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
|
<!DOCTYPE html>
<html lang="en" dir="ltr" class="client-nojs">
<head>
<title>std::shared_ptr::shared_ptr - cppreference.com</title>
<meta charset="UTF-8" />
<meta name="generator" content="MediaWiki 1.21.2" />
<link rel="alternate" type="application/x-wiki" title="Edit" href="http://en.cppreference.com/mwiki/index.php?title=cpp/memory/shared_ptr/shared_ptr&action=edit" />
<link rel="edit" title="Edit" href="http://en.cppreference.com/mwiki/index.php?title=cpp/memory/shared_ptr/shared_ptr&action=edit" />
<link rel="shortcut icon" href="../../../../favicon.ico" />
<link rel="search" type="application/opensearchdescription+xml" href="../../../../mwiki/opensearch_desc.php" title="cppreference.com (en)" />
<link rel="EditURI" type="application/rsd+xml" href="http://en.cppreference.com/mwiki/api.php?action=rsd" />
<link rel="alternate" type="application/atom+xml" title="cppreference.com Atom feed" href="http://en.cppreference.com/mwiki/index.php?title=Special:RecentChanges&feed=atom" />
<link rel="stylesheet" href="../../../../mwiki/load.php%3Fdebug=false&lang=en&modules=ext.gadget.ColiruCompiler%257Cext.rtlcite%257Cmediawiki.legacy.commonPrint%252Cshared%257Cskins.cppreference2&only=styles&skin=cppreference2&*.css" />
<meta name="ResourceLoaderDynamicStyles" content="" />
<link rel="stylesheet" href="../../../../mwiki/load.php%3Fdebug=false&lang=en&modules=site&only=styles&skin=cppreference2&*.css" />
<style>a:lang(ar),a:lang(ckb),a:lang(fa),a:lang(kk-arab),a:lang(mzn),a:lang(ps),a:lang(ur){text-decoration:none}#toc{display:none}.editsection{display:none}
/* cache key: mwiki1-mwiki_en_:resourceloader:filter:minify-css:7:472787eddcf4605d11de8c7ef047234f */</style>
<script src="../../../../mwiki/load.php%3Fdebug=false&lang=en&modules=startup&only=scripts&skin=cppreference2&*"></script>
<script>if(window.mw){
mw.config.set({"wgCanonicalNamespace":"","wgCanonicalSpecialPageName":false,"wgNamespaceNumber":0,"wgPageName":"cpp/memory/shared_ptr/shared_ptr","wgTitle":"cpp/memory/shared ptr/shared ptr","wgCurRevisionId":79140,"wgArticleId":2200,"wgIsArticle":true,"wgAction":"view","wgUserName":null,"wgUserGroups":["*"],"wgCategories":["unconditionally noexcept"],"wgBreakFrames":false,"wgPageContentLanguage":"en","wgSeparatorTransformTable":["",""],"wgDigitTransformTable":["",""],"wgDefaultDateFormat":"dmy","wgMonthNames":["","January","February","March","April","May","June","July","August","September","October","November","December"],"wgMonthNamesShort":["","Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nov","Dec"],"wgRelevantPageName":"cpp/memory/shared_ptr/shared_ptr","wgRestrictionEdit":[],"wgRestrictionMove":[]});
}</script><script>if(window.mw){
mw.loader.implement("user.options",function(){mw.user.options.set({"ccmeonemails":0,"cols":80,"date":"default","diffonly":0,"disablemail":0,"disablesuggest":0,"editfont":"default","editondblclick":0,"editsection":0,"editsectiononrightclick":0,"enotifminoredits":0,"enotifrevealaddr":0,"enotifusertalkpages":1,"enotifwatchlistpages":0,"extendwatchlist":0,"externaldiff":0,"externaleditor":0,"fancysig":0,"forceeditsummary":0,"gender":"unknown","hideminor":0,"hidepatrolled":0,"imagesize":2,"justify":0,"math":1,"minordefault":0,"newpageshidepatrolled":0,"nocache":0,"noconvertlink":0,"norollbackdiff":0,"numberheadings":0,"previewonfirst":0,"previewontop":1,"quickbar":5,"rcdays":7,"rclimit":50,"rememberpassword":0,"rows":25,"searchlimit":20,"showhiddencats":0,"showjumplinks":1,"shownumberswatching":1,"showtoc":0,"showtoolbar":1,"skin":"cppreference2","stubthreshold":0,"thumbsize":2,"underline":2,"uselivepreview":0,"usenewrc":0,"watchcreations":0,"watchdefault":0,"watchdeletion":0,
"watchlistdays":3,"watchlisthideanons":0,"watchlisthidebots":0,"watchlisthideliu":0,"watchlisthideminor":0,"watchlisthideown":0,"watchlisthidepatrolled":0,"watchmoves":0,"wllimit":250,"variant":"en","language":"en","searchNs0":true,"searchNs1":false,"searchNs2":false,"searchNs3":false,"searchNs4":false,"searchNs5":false,"searchNs6":false,"searchNs7":false,"searchNs8":false,"searchNs9":false,"searchNs10":false,"searchNs11":false,"searchNs12":false,"searchNs13":false,"searchNs14":false,"searchNs15":false,"gadget-ColiruCompiler":1});;},{},{});mw.loader.implement("user.tokens",function(){mw.user.tokens.set({"editToken":"+\\","patrolToken":false,"watchToken":false});;},{},{});
/* cache key: mwiki1-mwiki_en_:resourceloader:filter:minify-js:7:ca03345b1e2c4d90a25d968753a73b92 */
}</script>
<script>if(window.mw){
mw.loader.load(["mediawiki.page.startup","mediawiki.legacy.wikibits","mediawiki.legacy.ajax"]);
}</script>
<style type="text/css">/*<![CDATA[*/
.source-cpp {line-height: normal;}
.source-cpp li, .source-cpp pre {
line-height: normal; border: 0px none white;
}
/**
* GeSHi Dynamically Generated Stylesheet
* --------------------------------------
* Dynamically generated stylesheet for cpp
* CSS class: source-cpp, CSS id:
* GeSHi (C) 2004 - 2007 Nigel McNie, 2007 - 2008 Benny Baumann
* (http://qbnz.com/highlighter/ and http://geshi.org/)
* --------------------------------------
*/
.cpp.source-cpp .de1, .cpp.source-cpp .de2 {font: normal normal 1em/1.2em monospace; margin:0; padding:0; background:none; vertical-align:top;}
.cpp.source-cpp {font-family:monospace;}
.cpp.source-cpp .imp {font-weight: bold; color: red;}
.cpp.source-cpp li, .cpp.source-cpp .li1 {font-weight: normal; vertical-align:top;}
.cpp.source-cpp .ln {width:1px;text-align:right;margin:0;padding:0 2px;vertical-align:top;}
.cpp.source-cpp .li2 {font-weight: bold; vertical-align:top;}
.cpp.source-cpp .kw1 {color: #0000dd;}
.cpp.source-cpp .kw2 {color: #0000ff;}
.cpp.source-cpp .kw3 {color: #0000dd;}
.cpp.source-cpp .kw4 {color: #0000ff;}
.cpp.source-cpp .co1 {color: #909090;}
.cpp.source-cpp .co2 {color: #339900;}
.cpp.source-cpp .coMULTI {color: #ff0000; font-style: italic;}
.cpp.source-cpp .es0 {color: #008000; font-weight: bold;}
.cpp.source-cpp .es1 {color: #008000; font-weight: bold;}
.cpp.source-cpp .es2 {color: #008000; font-weight: bold;}
.cpp.source-cpp .es3 {color: #008000; font-weight: bold;}
.cpp.source-cpp .es4 {color: #008000; font-weight: bold;}
.cpp.source-cpp .es5 {color: #008000; font-weight: bold;}
.cpp.source-cpp .br0 {color: #008000;}
.cpp.source-cpp .sy0 {color: #008000;}
.cpp.source-cpp .sy1 {color: #000080;}
.cpp.source-cpp .sy2 {color: #000040;}
.cpp.source-cpp .sy3 {color: #000040;}
.cpp.source-cpp .sy4 {color: #008080;}
.cpp.source-cpp .st0 {color: #008000;}
.cpp.source-cpp .nu0 {color: #000080;}
.cpp.source-cpp .nu6 {color: #000080;}
.cpp.source-cpp .nu8 {color: #000080;}
.cpp.source-cpp .nu12 {color: #000080;}
.cpp.source-cpp .nu16 {color:#000080;}
.cpp.source-cpp .nu17 {color:#000080;}
.cpp.source-cpp .nu18 {color:#000080;}
.cpp.source-cpp .nu19 {color:#000080;}
.cpp.source-cpp .ln-xtra, .cpp.source-cpp li.ln-xtra, .cpp.source-cpp div.ln-xtra {background-color: #ffc;}
.cpp.source-cpp span.xtra { display:block; }
/*]]>*/
</style><style type="text/css">/*<![CDATA[*/
.source-text {line-height: normal;}
.source-text li, .source-text pre {
line-height: normal; border: 0px none white;
}
/**
* GeSHi Dynamically Generated Stylesheet
* --------------------------------------
* Dynamically generated stylesheet for text
* CSS class: source-text, CSS id:
* GeSHi (C) 2004 - 2007 Nigel McNie, 2007 - 2008 Benny Baumann
* (http://qbnz.com/highlighter/ and http://geshi.org/)
* --------------------------------------
*/
.text.source-text .de1, .text.source-text .de2 {font: normal normal 1em/1.2em monospace; margin:0; padding:0; background:none; vertical-align:top;}
.text.source-text {font-family:monospace;}
.text.source-text .imp {font-weight: bold; color: red;}
.text.source-text li, .text.source-text .li1 {font-weight: normal; vertical-align:top;}
.text.source-text .ln {width:1px;text-align:right;margin:0;padding:0 2px;vertical-align:top;}
.text.source-text .li2 {font-weight: bold; vertical-align:top;}
.text.source-text .ln-xtra, .text.source-text li.ln-xtra, .text.source-text div.ln-xtra {background-color: #ffc;}
.text.source-text span.xtra { display:block; }
/*]]>*/
</style><!--[if lt IE 7]><style type="text/css">body{behavior:url("/mwiki/skins/cppreference2/csshover.min.htc")}</style><![endif]--></head>
<body class="mediawiki ltr sitedir-ltr ns-0 ns-subject page-cpp_memory_shared_ptr_shared_ptr skin-cppreference2 action-view cpp-navbar">
<!-- header -->
<div id="mw-head" class="noprint">
<div id="cpp-head-first-base">
<div id="cpp-head-first">
<h5><a href="../../../../index.html">
cppreference.com </a></h5>
<div id="cpp-head-search">
<!-- 0 -->
<div id="p-search">
<h5><label for="searchInput">Search</label></h5>
<form action="http://en.cppreference.com/mwiki/index.php" id="searchform">
<input type='hidden' name="title" value="Special:Search"/>
<div id="simpleSearch">
<input name="search" title="Search cppreference.com [f]" accesskey="f" id="searchInput" /> <button type="submit" name="button" title="Search the pages for this text" id="searchButton"><img src="../../../../mwiki/skins/cppreference2/images/search-ltr.png%3F303" alt="Search" /></button> </div>
</form>
</div>
<!-- /0 -->
</div>
<div id="cpp-head-personal">
<!-- 0 -->
<div id="p-personal" class="">
<span id="pt-createaccount"><a href="http://en.cppreference.com/mwiki/index.php?title=Special:UserLogin&returnto=cpp%2Fmemory%2Fshared+ptr%2Fshared+ptr&type=signup">Create account</a></span> <div class="menu">
<ul>
<li id="pt-login"><a href="http://en.cppreference.com/mwiki/index.php?title=Special:UserLogin&returnto=cpp%2Fmemory%2Fshared+ptr%2Fshared+ptr" title="You are encouraged to log in; however, it is not mandatory [o]" accesskey="o">Log in</a></li> </ul>
</div>
</div>
<!-- /0 -->
</div>
</div>
</div>
<div id="cpp-head-second-base">
<div id="cpp-head-second">
<div id="cpp-head-tools-left">
<!-- 0 -->
<div id="p-namespaces" class="vectorTabs">
<h5>Namespaces</h5>
<ul>
<li id="ca-nstab-main" class="selected"><span><a href="shared_ptr.html" title="View the content page [c]" accesskey="c">Page</a></span></li>
<li id="ca-talk"><span><a href="http://en.cppreference.com/w/Talk:cpp/memory/shared_ptr/shared_ptr" title="Discussion about the content page [t]" accesskey="t">Discussion</a></span></li>
</ul>
</div>
<!-- /0 -->
<!-- 1 -->
<div id="p-variants" class="vectorMenu emptyPortlet">
<h5><span>Variants</span><a href="shared_ptr.html#"></a></h5>
<div class="menu">
<ul>
</ul>
</div>
</div>
<!-- /1 -->
</div>
<div id="cpp-head-tools-right">
<!-- 0 -->
<div id="p-views" class="vectorTabs">
<h5>Views</h5>
<ul>
<li id="ca-view" class="selected"><span><a href="shared_ptr.html" >View</a></span></li>
<li id="ca-edit"><span><a href="http://en.cppreference.com/mwiki/index.php?title=cpp/memory/shared_ptr/shared_ptr&action=edit" title="You can edit this page. Please use the preview button before saving [e]" accesskey="e">Edit</a></span></li>
<li id="ca-history" class="collapsible"><span><a href="http://en.cppreference.com/mwiki/index.php?title=cpp/memory/shared_ptr/shared_ptr&action=history" title="Past revisions of this page [h]" accesskey="h">History</a></span></li>
</ul>
</div>
<!-- /0 -->
<!-- 1 -->
<div id="p-cactions" class="vectorMenu emptyPortlet">
<h5><span>Actions</span><a href="shared_ptr.html#"></a></h5>
<div class="menu">
<ul>
</ul>
</div>
</div>
<!-- /1 -->
</div>
</div>
</div>
</div>
<!-- /header -->
<!-- content -->
<div id="cpp-content-base">
<div id="content">
<a id="top"></a>
<div id="mw-js-message" style="display:none;"></div>
<!-- firstHeading -->
<h1 id="firstHeading" class="firstHeading"><span style="font-size:0.7em; line-height:130%">std::shared_ptr::</span>shared_ptr</h1>
<!-- /firstHeading -->
<!-- bodyContent -->
<div id="bodyContent">
<!-- tagline -->
<div id="siteSub">From cppreference.com</div>
<!-- /tagline -->
<!-- subtitle -->
<div id="contentSub"><span class="subpages">< <a href="../../../cpp.html" title="cpp">cpp</a>‎ | <a href="../../memory.html" title="cpp/memory">memory</a>‎ | <a href="../shared_ptr.html" title="cpp/memory/shared ptr">shared ptr</a></span></div>
<!-- /subtitle -->
<!-- bodycontent -->
<div id="mw-content-text" lang="en" dir="ltr" class="mw-content-ltr"><div class="t-navbar" style=""><div class="t-navbar-sep"> </div><div class="t-navbar-head"><a href="../../../cpp.html" title="cpp"> C++</a><div class="t-navbar-menu"><div><div><table class="t-nv-begin" cellpadding="0" style="line-height:1.1em;">
<tr class="t-nv"><td colspan="5"> <a href="../../language.1.html" title="cpp/language"> Language</a> </td></tr>
<tr class="t-nv"><td colspan="5"> <a href="../../header.html" title="cpp/header"> Standard library headers</a> </td></tr>
<tr class="t-nv"><td colspan="5"> <a href="../../concept.html" title="cpp/concept"> Concepts</a> </td></tr>
<tr class="t-nv"><td colspan="5"> <a href="../../utility.html" title="cpp/utility"> Utilities library</a> </td></tr>
<tr class="t-nv"><td colspan="5"> <a href="../../string.html" title="cpp/string"> Strings library</a> </td></tr>
<tr class="t-nv"><td colspan="5"> <a href="../../container.html" title="cpp/container"> Containers library</a> </td></tr>
<tr class="t-nv"><td colspan="5"> <a href="../../algorithm.html" title="cpp/algorithm"> Algorithms library</a> </td></tr>
<tr class="t-nv"><td colspan="5"> <a href="../../iterator.html" title="cpp/iterator"> Iterators library</a> </td></tr>
<tr class="t-nv"><td colspan="5"> <a href="../../numeric.html" title="cpp/numeric"> Numerics library</a> </td></tr>
<tr class="t-nv"><td colspan="5"> <a href="../../io.html" title="cpp/io"> Input/output library</a> </td></tr>
<tr class="t-nv"><td colspan="5"> <a href="../../locale.html" title="cpp/locale"> Localizations library</a> </td></tr>
<tr class="t-nv"><td colspan="5"> <a href="../../regex.html" title="cpp/regex"> Regular expressions library</a> <span class="t-mark-rev t-since-cxx11">(C++11)</span> </td></tr>
<tr class="t-nv"><td colspan="5"> <a href="../../atomic.html" title="cpp/atomic"> Atomic operations library</a> <span class="t-mark-rev t-since-cxx11">(C++11)</span> </td></tr>
<tr class="t-nv"><td colspan="5"> <a href="../../thread.html" title="cpp/thread"> Thread support library</a> <span class="t-mark-rev t-since-cxx11">(C++11)</span> </td></tr>
<tr class="t-nv"><td colspan="5"> <a href="../../experimental.html" title="cpp/experimental"> Technical Specifications</a> </td></tr>
</table></div><div><span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/navbar_content&action=edit">[edit]</a></span></div></div></div></div><div class="t-navbar-sep"> </div><div class="t-navbar-head"><a href="../../utility.html" title="cpp/utility"> Utilities library</a><div class="t-navbar-menu"><div><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"> <a href="../../types.html" title="cpp/types"> Type support</a> (basic types, RTTI, type traits) </td></tr>
<tr class="t-nv"><td colspan="5"> <a href="../../memory.html" title="cpp/memory"> Dynamic memory management</a> </td></tr>
<tr class="t-nv"><td colspan="5"> <a href="../../error.html" title="cpp/error"> Error handling</a> </td></tr>
<tr class="t-nv"><td colspan="5"> <a href="../../utility/program.html" title="cpp/utility/program"> Program utilities</a> </td></tr>
<tr class="t-nv"><td colspan="5"> <a href="../../utility/variadic.html" title="cpp/utility/variadic"> Variadic functions</a> </td></tr>
<tr class="t-nv"><td colspan="5"> <a href="../../chrono.html" title="cpp/chrono"> Date and time</a> </td></tr>
<tr class="t-nv"><td colspan="5"> <a href="../../utility/functional.html" title="cpp/utility/functional"> Function objects</a> </td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="../../utility/initializer_list.html" title="cpp/utility/initializer list"><span class="t-lines"><span>initializer_list</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="../../utility/bitset.html" title="cpp/utility/bitset"><span class="t-lines"><span>bitset</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="../../utility/hash.html" title="cpp/utility/hash"><span class="t-lines"><span>hash</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv-h2"><td colspan="5"> Relational operators</td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="../../utility/rel_ops/operator_cmp.html" title="cpp/utility/rel ops/operator cmp"><span class="t-lines"><span>rel_ops::operator!=</span><span>rel_ops::operator></span><span>rel_ops::operator<=</span><span>rel_ops::operator>=</span></span></a></div></div></td></tr>
<tr class="t-nv-h2"><td colspan="5"> Pairs and tuples</td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="../../utility/pair.html" title="cpp/utility/pair"><span class="t-lines"><span>pair</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="../../utility/tuple.html" title="cpp/utility/tuple"><span class="t-lines"><span>tuple</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="../../utility/piecewise_construct_t.html" title="cpp/utility/piecewise construct t"><span class="t-lines"><span>piecewise_construct_t</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="../../utility/piecewise_construct.html" title="cpp/utility/piecewise construct"><span class="t-lines"><span>piecewise_construct</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="../../utility/integer_sequence.html" title="cpp/utility/integer sequence"><span class="t-lines"><span>integer_sequence</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx14">(C++14)</span></span></span></div></div></td></tr>
<tr class="t-nv-h2"><td colspan="5"> Swap, forward and move</td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="../../algorithm/swap.html" title="cpp/algorithm/swap"><span class="t-lines"><span>swap</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="../../utility/exchange.html" title="cpp/utility/exchange"><span class="t-lines"><span>exchange</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx14">(C++14)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="../../utility/forward.html" title="cpp/utility/forward"><span class="t-lines"><span>forward</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="../../utility/move.html" title="cpp/utility/move"><span class="t-lines"><span>move</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="../../utility/move_if_noexcept.html" title="cpp/utility/move if noexcept"><span class="t-lines"><span>move_if_noexcept</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv-h2"><td colspan="5"> Type operations</td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="../../utility/declval.html" title="cpp/utility/declval"><span class="t-lines"><span>declval</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="../../utility/as_const.html" title="cpp/utility/as const"><span class="t-lines"><span>as_const</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx17">(C++17)</span></span></span></div></div></td></tr>
</table></div><div><span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/utility/navbar_content&action=edit">[edit]</a></span></div></div></div></div><div class="t-navbar-sep"> </div><div class="t-navbar-head"><a href="../../memory.html" title="cpp/memory"> Dynamic memory management</a><div class="t-navbar-menu"><div><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv-h1"><td colspan="5"> Smart pointers</td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="../unique_ptr.html" title="cpp/memory/unique ptr"><span class="t-lines"><span>unique_ptr</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="../shared_ptr.html" title="cpp/memory/shared ptr"><span class="t-lines"><span>shared_ptr</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="../weak_ptr.html" title="cpp/memory/weak ptr"><span class="t-lines"><span>weak_ptr</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="../auto_ptr.html" title="cpp/memory/auto ptr"><span class="t-lines"><span>auto_ptr</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-until-cxx17">(until C++17)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="../owner_less.html" title="cpp/memory/owner less"><span class="t-lines"><span>owner_less</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="../enable_shared_from_this.html" title="cpp/memory/enable shared from this"><span class="t-lines"><span>enable_shared_from_this</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="../bad_weak_ptr.html" title="cpp/memory/bad weak ptr"><span class="t-lines"><span>bad_weak_ptr</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="../default_delete.html" title="cpp/memory/default delete"><span class="t-lines"><span>default_delete</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv-h1"><td colspan="5"> Allocators</td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="../allocator.html" title="cpp/memory/allocator"><span class="t-lines"><span>allocator</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="../allocator_traits.html" title="cpp/memory/allocator traits"><span class="t-lines"><span>allocator_traits</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="../allocator_arg_t.html" title="cpp/memory/allocator arg t"><span class="t-lines"><span>allocator_arg_t</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="../allocator_arg.html" title="cpp/memory/allocator arg"><span class="t-lines"><span>allocator_arg</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="../uses_allocator.html" title="cpp/memory/uses allocator"><span class="t-lines"><span>uses_allocator</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="../scoped_allocator_adaptor.html" title="cpp/memory/scoped allocator adaptor"><span class="t-lines"><span>scoped_allocator_adaptor</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv-h1"><td colspan="5"> Uninitialized storage</td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="../uninitialized_copy.html" title="cpp/memory/uninitialized copy"><span class="t-lines"><span>uninitialized_copy</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="../uninitialized_copy_n.html" title="cpp/memory/uninitialized copy n"><span class="t-lines"><span>uninitialized_copy_n</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="../uninitialized_fill.html" title="cpp/memory/uninitialized fill"><span class="t-lines"><span>uninitialized_fill</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="../uninitialized_fill_n.html" title="cpp/memory/uninitialized fill n"><span class="t-lines"><span>uninitialized_fill_n</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="../raw_storage_iterator.html" title="cpp/memory/raw storage iterator"><span class="t-lines"><span>raw_storage_iterator</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="../get_temporary_buffer.html" title="cpp/memory/get temporary buffer"><span class="t-lines"><span>get_temporary_buffer</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="../return_temporary_buffer.html" title="cpp/memory/return temporary buffer"><span class="t-lines"><span>return_temporary_buffer</span></span></a></div></div></td></tr>
<tr class="t-nv-h1"><td colspan="5"> Garbage collection support</td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="../gc/declare_reachable.html" title="cpp/memory/gc/declare reachable"><span class="t-lines"><span>declare_reachable</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="../gc/undeclare_reachable.html" title="cpp/memory/gc/undeclare reachable"><span class="t-lines"><span>undeclare_reachable</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="../gc/declare_no_pointers.html" title="cpp/memory/gc/declare no pointers"><span class="t-lines"><span>declare_no_pointers</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="../gc/undeclare_no_pointers.html" title="cpp/memory/gc/undeclare no pointers"><span class="t-lines"><span>undeclare_no_pointers</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="../gc/pointer_safety.html" title="cpp/memory/gc/pointer safety"><span class="t-lines"><span>pointer_safety</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="../gc/get_pointer_safety.html" title="cpp/memory/gc/get pointer safety"><span class="t-lines"><span>get_pointer_safety</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv-h1"><td colspan="5"> Miscellaneous</td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="../pointer_traits.html" title="cpp/memory/pointer traits"><span class="t-lines"><span>pointer_traits</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="../addressof.html" title="cpp/memory/addressof"><span class="t-lines"><span>addressof</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="../align.html" title="cpp/memory/align"><span class="t-lines"><span>align</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv-h1"><td colspan="5"> <a href="../c.html" title="cpp/memory/c">C Library</a></td></tr>
<tr class="t-nv-col-table"><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="../c/malloc.html" title="cpp/memory/c/malloc"><span class="t-lines"><span>malloc</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="../c/calloc.html" title="cpp/memory/c/calloc"><span class="t-lines"><span>calloc</span></span></a></div></div></td></tr>
</table></div></td><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="../c/realloc.html" title="cpp/memory/c/realloc"><span class="t-lines"><span>realloc</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="../c/free.html" title="cpp/memory/c/free"><span class="t-lines"><span>free</span></span></a></div></div></td></tr>
</table></div></td></tr>
<tr class="t-nv-h1"><td colspan="5"> <a href="../new.1.html" title="cpp/memory/new">Low level memory management</a></td></tr>
</table></div><div><span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/memory/navbar_content&action=edit">[edit]</a></span></div></div></div></div><div class="t-navbar-sep"> </div><div class="t-navbar-head"><a href="../shared_ptr.html" title="cpp/memory/shared ptr"><tt>std::shared_ptr</tt></a><div class="t-navbar-menu"><div><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv-h1"><td colspan="5"> Member functions</td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><strong class="selflink"><span class="t-lines"><span>shared_ptr::shared_ptr</span></span></strong></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="~shared_ptr.html" title="cpp/memory/shared ptr/~shared ptr"><span class="t-lines"><span>shared_ptr::~shared_ptr</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="operator=.html" title="cpp/memory/shared ptr/operator="><span class="t-lines"><span>shared_ptr::operator=</span></span></a></div></div></td></tr>
<tr class="t-nv-h2"><td colspan="5"> Modifiers</td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="reset.html" title="cpp/memory/shared ptr/reset"><span class="t-lines"><span>shared_ptr::reset</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="swap.html" title="cpp/memory/shared ptr/swap"><span class="t-lines"><span>shared_ptr::swap</span></span></a></div></div></td></tr>
<tr class="t-nv-h2"><td colspan="5"> Observers</td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="get.html" title="cpp/memory/shared ptr/get"><span class="t-lines"><span>shared_ptr::get</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="operator*.html" title="cpp/memory/shared ptr/operator*"><span class="t-lines"><span>shared_ptr::operator*</span><span>shared_ptr::operator-></span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="use_count.html" title="cpp/memory/shared ptr/use count"><span class="t-lines"><span>shared_ptr::use_count</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="unique.html" title="cpp/memory/shared ptr/unique"><span class="t-lines"><span>shared_ptr::unique</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="operator_bool.html" title="cpp/memory/shared ptr/operator bool"><span class="t-lines"><span>shared_ptr::operator bool</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="owner_before.html" title="cpp/memory/shared ptr/owner before"><span class="t-lines"><span>shared_ptr::owner_before</span></span></a></div></div></td></tr>
<tr class="t-nv-h1"><td colspan="5"> Non-member functions</td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="swap2.html" title="cpp/memory/shared ptr/swap2"><span class="t-lines"><span>std::swap</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="make_shared.html" title="cpp/memory/shared ptr/make shared"><span class="t-lines"><span>make_shared</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="allocate_shared.html" title="cpp/memory/shared ptr/allocate shared"><span class="t-lines"><span>allocate_shared</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="pointer_cast.html" title="cpp/memory/shared ptr/pointer cast"><span class="t-lines"><span>static_pointer_cast</span><span>dynamic_pointer_cast</span><span>const_pointer_cast</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="get_deleter.html" title="cpp/memory/shared ptr/get deleter"><span class="t-lines"><span>get_deleter</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="operator_cmp.html" title="cpp/memory/shared ptr/operator cmp"><span class="t-lines"><span>operator==</span><span>operator|=</span><span>operator<</span><span>operator<=</span><span>operator></span><span>operator>=</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="operator_ltlt.html" title="cpp/memory/shared ptr/operator ltlt"><span class="t-lines"><span>operator<<</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="atomic.html" title="cpp/memory/shared ptr/atomic"><span class="t-lines"><span>atomic_is_lock_free</span><span>atomic_load</span><span>atomic_load_explicit</span><span>atomic_store</span><span>atomic_store_explicit</span><span>atomic_exchange</span><span>atomic_exchange_explicit</span><span>atomic_compare_exchange_weak</span><span>atomic_compare_exchange_strong</span><span>atomic_compare_exchange_weak_explicit</span><span>atomic_compare_exchange_strong_explicit</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="hash.html" title="cpp/memory/shared ptr/hash"><span class="t-lines"><span>std::hash</span></span></a></div></div></td></tr>
</table></div><div><span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/memory/shared_ptr/navbar_content&action=edit">[edit]</a></span></div></div></div></div><div class="t-navbar-sep"> </div></div>
<table class="t-dcl-begin"><tbody>
<tr class="t-dcl">
<td> <div><span class="mw-geshi cpp source-cpp"><span class="kw4">constexpr</span> shared_ptr<span class="br0">(</span><span class="br0">)</span><span class="sy4">;</span></span></div></td>
<td> (1) </td>
<td class="t-dcl-nopad"> </td>
</tr>
<tr class="t-dcl">
<td> <div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span><span class="sy1"><</span> <span class="kw1">class</span> Y <span class="sy1">></span> <br />
<span class="kw1">explicit</span> shared_ptr<span class="br0">(</span> Y<span class="sy2">*</span> ptr <span class="br0">)</span><span class="sy4">;</span></span></div></td>
<td> (2) </td>
<td class="t-dcl-nopad"> </td>
</tr>
<tr class="t-dcl">
<td> <div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span><span class="sy1"><</span> <span class="kw1">class</span> Y, <span class="kw1">class</span> Deleter <span class="sy1">></span> <br />
shared_ptr<span class="br0">(</span> Y<span class="sy2">*</span> ptr, Deleter d <span class="br0">)</span><span class="sy4">;</span></span></div></td>
<td> (3) </td>
<td class="t-dcl-nopad"> </td>
</tr>
<tr class="t-dcl">
<td> <div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span><span class="sy1"><</span> <span class="kw1">class</span> Y, <span class="kw1">class</span> Deleter, <span class="kw1">class</span> Alloc <span class="sy1">></span> <br />
shared_ptr<span class="br0">(</span> Y<span class="sy2">*</span> ptr, Deleter d, Alloc alloc <span class="br0">)</span><span class="sy4">;</span></span></div></td>
<td> (4) </td>
<td class="t-dcl-nopad"> </td>
</tr>
<tr class="t-dcl">
<td> <div><span class="mw-geshi cpp source-cpp"><span class="kw4">constexpr</span> shared_ptr<span class="br0">(</span> <a href="../../types/nullptr_t.html"><span class="kw102">std::<span class="me2">nullptr_t</span></span></a> <span class="br0">)</span><span class="sy4">;</span></span></div></td>
<td> (5) </td>
<td class="t-dcl-nopad"> </td>
</tr>
<tr class="t-dcl">
<td> <div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span><span class="sy1"><</span> <span class="kw1">class</span> Deleter <span class="sy1">></span> <br />
shared_ptr<span class="br0">(</span> <a href="../../types/nullptr_t.html"><span class="kw102">std::<span class="me2">nullptr_t</span></span></a>, Deleter d <span class="br0">)</span><span class="sy4">;</span></span></div></td>
<td> (6) </td>
<td class="t-dcl-nopad"> </td>
</tr>
<tr class="t-dcl">
<td> <div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span><span class="sy1"><</span> <span class="kw1">class</span> Deleter, <span class="kw1">class</span> Alloc <span class="sy1">></span> <br />
shared_ptr<span class="br0">(</span> <a href="../../types/nullptr_t.html"><span class="kw102">std::<span class="me2">nullptr_t</span></span></a>, Deleter d, Alloc alloc <span class="br0">)</span><span class="sy4">;</span></span></div></td>
<td> (7) </td>
<td class="t-dcl-nopad"> </td>
</tr>
<tr class="t-dcl">
<td> <div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span><span class="sy1"><</span> <span class="kw1">class</span> Y <span class="sy1">></span> <br />
shared_ptr<span class="br0">(</span> <span class="kw4">const</span> shared_ptr<span class="sy1"><</span>Y<span class="sy1">></span><span class="sy3">&</span> r, T <span class="sy2">*</span>ptr <span class="br0">)</span><span class="sy4">;</span></span></div></td>
<td> (8) </td>
<td class="t-dcl-nopad"> </td>
</tr>
<tr class="t-dcl">
<td> <div><span class="mw-geshi cpp source-cpp">shared_ptr<span class="br0">(</span> <span class="kw4">const</span> shared_ptr<span class="sy3">&</span> r <span class="br0">)</span><span class="sy4">;</span></span></div></td>
<td> (9) </td>
<td class="t-dcl-nopad"> </td>
</tr>
<tr class="t-dcl">
<td> <div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span><span class="sy1"><</span> <span class="kw1">class</span> Y <span class="sy1">></span> <br />
shared_ptr<span class="br0">(</span> <span class="kw4">const</span> shared_ptr<span class="sy1"><</span>Y<span class="sy1">></span><span class="sy3">&</span> r <span class="br0">)</span><span class="sy4">;</span></span></div></td>
<td> (9) </td>
<td class="t-dcl-nopad"> </td>
</tr>
<tr class="t-dcl">
<td> <div><span class="mw-geshi cpp source-cpp">shared_ptr<span class="br0">(</span> shared_ptr<span class="sy3">&&</span> r <span class="br0">)</span><span class="sy4">;</span></span></div></td>
<td> (10) </td>
<td class="t-dcl-nopad"> </td>
</tr>
<tr class="t-dcl">
<td> <div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span><span class="sy1"><</span> <span class="kw1">class</span> Y <span class="sy1">></span> <br />
shared_ptr<span class="br0">(</span> shared_ptr<span class="sy1"><</span>Y<span class="sy1">></span><span class="sy3">&&</span> r <span class="br0">)</span><span class="sy4">;</span></span></div></td>
<td> (10) </td>
<td class="t-dcl-nopad"> </td>
</tr>
<tr class="t-dcl">
<td> <div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span><span class="sy1"><</span> <span class="kw1">class</span> Y <span class="sy1">></span> <br />
<span class="kw1">explicit</span> shared_ptr<span class="br0">(</span> <span class="kw4">const</span> <a href="../weak_ptr.html"><span class="kw622">std::<span class="me2">weak_ptr</span></span></a><span class="sy1"><</span>Y<span class="sy1">></span><span class="sy3">&</span> r <span class="br0">)</span><span class="sy4">;</span></span></div></td>
<td> (11) </td>
<td class="t-dcl-nopad"> </td>
</tr>
<tr class="t-dcl t-until-cxx17">
<td> <div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span><span class="sy1"><</span> <span class="kw1">class</span> Y <span class="sy1">></span> <br />
shared_ptr<span class="br0">(</span> <a href="../auto_ptr.html"><span class="kw623">std::<span class="me2">auto_ptr</span></span></a><span class="sy1"><</span>Y<span class="sy1">></span><span class="sy3">&&</span> r <span class="br0">)</span><span class="sy4">;</span></span></div></td>
<td> (12) </td>
<td> <span class="t-mark-rev t-until-cxx17">(until C++17)</span> </td>
</tr>
<tr class="t-dcl">
<td> <div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span><span class="sy1"><</span> <span class="kw1">class</span> Y, <span class="kw1">class</span> Deleter <span class="sy1">></span> <br />
shared_ptr<span class="br0">(</span> <a href="../unique_ptr.html"><span class="kw614">std::<span class="me2">unique_ptr</span></span></a><span class="sy1"><</span>Y,Deleter<span class="sy1">></span><span class="sy3">&&</span> r <span class="br0">)</span><span class="sy4">;</span></span></div></td>
<td> (13) </td>
<td class="t-dcl-nopad"> </td>
</tr>
<tr class="t-dcl-sep"><td></td><td></td><td></td></tr>
</tbody></table>
<p>Constructs new <code>shared_ptr</code> from a variety of pointer types that refer to an object to manage.
</p><p>An optional deleter <code>d</code> can be supplied that is later used to destroy the object when no <code>shared_ptr</code> objects own it. By default, a <a href="../../language/delete.html" title="cpp/language/delete">delete-expression</a> for type <code>Y</code> is used as the deleter.
</p>
<div class="t-li1"><span class="t-li">1)</span> Default constructor constructs a <code>shared_ptr</code> with no managed object, i.e. empty <code>shared_ptr</code></div>
<div class="t-li1"><span class="t-li">2-4)</span> Constructs a <code>shared_ptr</code> with <code>ptr</code> as the pointer to the managed object. <code>Y</code> must be a complete type and <code>ptr</code> must be convertible to <code>T*</code>. Additionally:</div>
<div class="t-li2"><span class="t-li">2)</span> Uses the delete expression as the deleter. A valid delete expression must be available, i.e. <span class="t-c"><span class="mw-geshi cpp source-cpp">delete ptr</span></span> must be well formed, have well-defined behavior and not throw any exceptions.</div>
<div class="t-li2"><span class="t-li">3)</span> Uses the specified deleter <code>d</code> as the deleter. <code>Deleter</code> must be callable for the type <code>Y</code>, i.e. <span class="t-c"><span class="mw-geshi cpp source-cpp">d<span class="br0">(</span>ptr<span class="br0">)</span></span></span> must be well formed, have well-defined behavior and not throw any exceptions. <code>Deleter</code> must be <a href="../../concept/CopyConstructible.html" title="cpp/concept/CopyConstructible"><code>CopyConstructible</code></a>. The copy constructor and the destructor must not throw exceptions.</div>
<div class="t-li2"><span class="t-li">4)</span> Same as (3), but additionally uses a copy of <code>alloc</code> for allocation of data for internal use. <code>Alloc</code> must be a <a href="../../concept/Allocator.html" title="cpp/concept/Allocator"><code>Allocator</code></a>. The copy constructor and destructor must not throw exceptions.</div>
<div class="t-li1"><span class="t-li">5-7)</span> Analogous to (2), (3), (4) respectively, but constructs a <code>shared_ptr</code> with no managed object, i.e. empty <code>shared_ptr</code>.</div>
<div class="t-li1"><span class="t-li">8)</span> The <i>aliasing constructor</i>: constructs a <code>shared_ptr</code> which shares ownership information with <code>r</code>, but holds an unrelated and unmanaged pointer <code>ptr</code>. Even if this <code>shared_ptr</code> is the last of the group to go out of scope, it will call the destructor for the object originally managed by <code>r</code>. However, calling <code>get()</code> on this will always return a copy of <code>ptr</code>. It is the responsibility of the programmer to make sure that this <code>ptr</code> remains valid as long as this shared_ptr exists, such as in the typical use cases where <code>ptr</code> is a member of the object managed by <code>r</code> or is an alias (e.g., downcast) of <code>r.get()</code></div>
<div class="t-li1"><span class="t-li">9)</span> Constructs a <code>shared_ptr</code> which shares ownership of the object managed by <code>r</code>. If <code>r</code> manages no object, <code>*this</code> manages no object too. This overload doesn't participate in overload resolution if <code>Y*</code> is not implicitly convertible to <code>T*</code>.</div>
<div class="t-li1"><span class="t-li">10)</span> Move-constructs a <code>shared_ptr</code> from <code>r</code>. After the construction, <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="sy2">*</span>this</span></span> contains a copy of the previous state of <code>r</code>, <code>r</code> is empty. This overload doesn't participate in overload resolution if <code>Y*</code> is not implicitly convertible to <code>T*</code>.</div>
<div class="t-li1"><span class="t-li">11)</span> Constructs a <code>shared_ptr</code> which shares ownership of the object managed by <code>r</code>. <code>Y*</code> must be convertible to <code>T*</code>. Note that <span class="t-c"><span class="mw-geshi cpp source-cpp">r.<span class="me1">lock</span><span class="br0">(</span><span class="br0">)</span></span></span> may be used for the same purpose: the difference is that this constructor throws an exception if the argument is empty, while <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="../weak_ptr.html"><span class="kw622">std::<span class="me2">weak_ptr</span></span></a><span class="sy1"><</span>T<span class="sy1">></span><span class="sy4">::</span><span class="me2">lock</span><span class="br0">(</span><span class="br0">)</span></span></span> constructs an empty <code>std::shared_ptr</code> in that case.</div>
<div class="t-li1"><span class="t-li">12)</span> Constructs a <code>shared_ptr</code> that stores and owns the object formerly owned by <code>r</code>. <code>Y*</code> must be convertible to <code>T*</code>. After construction, <code>r</code> is empty.</div>
<div class="t-li1"><span class="t-li">13)</span> Constructs a <code>shared_ptr</code> which manages the object currently managed by <code>r</code>. The deleter associated to <code>r</code> is stored for future deletion of the managed object. <code>r</code> manages no object after the call. <table class="t-rev-begin"><tr class="t-rev t-since-cxx17"><td>This overload doesn't participate in overload resolution if <code>std::unique_ptr<Y, D>::pointer</code> is not convertible to <code>T*</code>.
If <span class="t-c"><span class="mw-geshi cpp source-cpp">r.<span class="me1">get</span><span class="br0">(</span><span class="br0">)</span></span></span> is a null pointer, this overload is equivalent to the default constructor <span class="t-v">(1)</span>.</td>
<td><span class="t-mark-rev t-since-cxx17">(since C++17)</span></td></tr></table> If <code>D</code> is a reference type, equivalent to <span class="t-c"><span class="mw-geshi cpp source-cpp">shared_ptr<span class="br0">(</span>r.<span class="me1">release</span><span class="br0">(</span><span class="br0">)</span>, <a href="../../utility/functional/ref.html"><span class="kw934">std::<span class="me2">ref</span></span></a><span class="br0">(</span>r.<span class="me1">get_deleter</span><span class="br0">(</span><span class="br0">)</span><span class="br0">)</span></span></span>. Otherwise, equivalent to <span class="t-c"><span class="mw-geshi cpp source-cpp">shared_ptr<span class="br0">(</span>r.<span class="me1">release</span><span class="br0">(</span><span class="br0">)</span>, r.<span class="me1">get_deleter</span><span class="br0">(</span><span class="br0">)</span><span class="br0">)</span></span></span> </div>
<table id="toc" class="toc"><tr><td><div id="toctitle"><h2>Contents</h2></div>
<ul>
<li class="toclevel-1 tocsection-1"><a href="shared_ptr.html#Notes"><span class="tocnumber">1</span> <span class="toctext">Notes</span></a></li>
<li class="toclevel-1 tocsection-2"><a href="shared_ptr.html#Parameters"><span class="tocnumber">2</span> <span class="toctext">Parameters</span></a></li>
<li class="toclevel-1 tocsection-3"><a href="shared_ptr.html#Exceptions"><span class="tocnumber">3</span> <span class="toctext">Exceptions</span></a></li>
<li class="toclevel-1 tocsection-4"><a href="shared_ptr.html#Example"><span class="tocnumber">4</span> <span class="toctext">Example</span></a></li>
<li class="toclevel-1 tocsection-5"><a href="shared_ptr.html#See_also"><span class="tocnumber">5</span> <span class="toctext">See also</span></a></li>
</ul>
</td></tr></table>
<h3><span class="editsection">[<a href="http://en.cppreference.com/mwiki/index.php?title=cpp/memory/shared_ptr/shared_ptr&action=edit&section=1" title="Edit section: Notes">edit</a>]</span> <span class="mw-headline" id="Notes">Notes</span></h3>
<p>When constructing a <code>shared_ptr</code> from a raw pointer to an object of a type derived from <span class="t-lc"><a href="../enable_shared_from_this.html" title="cpp/memory/enable shared from this">std::enable_shared_from_this</a></span>, the constructors of <code>shared_ptr</code> update the private <code>weak_ptr</code> member of the <span class="t-lc"><a href="../enable_shared_from_this.html" title="cpp/memory/enable shared from this">std::enable_shared_from_this</a></span> base so that future calls to <a href="../enable_shared_from_this/shared_from_this.html" title="cpp/memory/enable shared from this/shared from this"><tt>shared_from_this()</tt></a> would share ownership with the <code>shared_ptr</code> created by this raw pointer constructor.
</p><p>Constructing a <code>shared_ptr</code> using the raw pointer overload for an object that is already managed by a <code>shared_ptr</code> leads to undefined behavior, even if the object is of a type derived from <span class="t-lc"><a href="../enable_shared_from_this.html" title="cpp/memory/enable shared from this">std::enable_shared_from_this</a></span> (in other words, raw pointer overloads assume ownership of the pointed-to object).
</p>
<h3><span class="editsection">[<a href="http://en.cppreference.com/mwiki/index.php?title=cpp/memory/shared_ptr/shared_ptr&action=edit&section=2" title="Edit section: Parameters">edit</a>]</span> <span class="mw-headline" id="Parameters">Parameters</span></h3>
<table class="t-par-begin">
<tr class="t-par">
<td> ptr
</td>
<td> -
</td>
<td> a pointer to an object to manage
</td></tr>
<tr class="t-par">
<td> d
</td>
<td> -
</td>
<td> a deleter to use to destroy the object
</td></tr>
<tr class="t-par">
<td> alloc
</td>
<td> -
</td>
<td> an allocator to use for allocations of data for internal use
</td></tr>
<tr class="t-par">
<td> r
</td>
<td> -
</td>
<td> another smart pointer to share the ownership to or acquire the ownership from
</td></tr></table>
<h3><span class="editsection">[<a href="http://en.cppreference.com/mwiki/index.php?title=cpp/memory/shared_ptr/shared_ptr&action=edit&section=3" title="Edit section: Exceptions">edit</a>]</span> <span class="mw-headline" id="Exceptions">Exceptions</span></h3>
<div class="t-li1"><span class="t-li">1)</span> <div class="t-noexcept-inline"><a href="../../language/noexcept_spec.html" title="cpp/language/noexcept spec"><tt>noexcept</tt></a> specification:  <div class="t-noexcept-box"><span class="t-cc"><span class="mw-geshi cpp source-cpp"><span class="kw1">noexcept</span></span></span></div>  </div></div>
<div class="t-li1"><span class="t-li">2)</span> <span class="t-lc"><a href="../new/bad_alloc.html" title="cpp/memory/new/bad alloc">std::bad_alloc</a></span> if required additional memory could not be obtained. May throw implementation-defined exception for other errors. <span class="t-c"><span class="mw-geshi cpp source-cpp">delete ptr</span></span> is called if an exception occurs.</div>
<div class="t-li1"><span class="t-li">3-4)</span> <span class="t-lc"><a href="../new/bad_alloc.html" title="cpp/memory/new/bad alloc">std::bad_alloc</a></span> if required additional memory could not be obtained. May throw implementation-defined exception for other errors. <span class="t-c"><span class="mw-geshi cpp source-cpp">d<span class="br0">(</span>ptr<span class="br0">)</span></span></span> is called if an exception occurs.</div>
<div class="t-li1"><span class="t-li">5)</span> <div class="t-noexcept-inline"><a href="../../language/noexcept_spec.html" title="cpp/language/noexcept spec"><tt>noexcept</tt></a> specification:  <div class="t-noexcept-box"><span class="t-cc"><span class="mw-geshi cpp source-cpp"><span class="kw1">noexcept</span></span></span></div>  </div></div>
<div class="t-li1"><span class="t-li">6-7)</span> <span class="t-lc"><a href="../new/bad_alloc.html" title="cpp/memory/new/bad alloc">std::bad_alloc</a></span> if required additional memory could not be obtained. May throw implementation-defined exception for other errors. If an exception is thrown, <span class="t-c"><span class="mw-geshi cpp source-cpp">d<span class="br0">(</span>ptr<span class="br0">)</span></span></span> is executed.</div>
<div class="t-li1"><span class="t-li">8-10)</span> <div class="t-noexcept-inline"><a href="../../language/noexcept_spec.html" title="cpp/language/noexcept spec"><tt>noexcept</tt></a> specification:  <div class="t-noexcept-box"><span class="t-cc"><span class="mw-geshi cpp source-cpp"><span class="kw1">noexcept</span></span></span></div>  </div></div>
<div class="t-li1"><span class="t-li">11)</span> <span class="t-lc"><a href="../bad_weak_ptr.html" title="cpp/memory/bad weak ptr">std::bad_weak_ptr</a></span> if <span class="t-c"><span class="mw-geshi cpp source-cpp">r.<span class="me1">expired</span> <span class="sy1">==</span> <span class="kw2">true</span></span></span>. The constructor has no effect in this case.</div>
<div class="t-li1"><span class="t-li">12)</span> <span class="t-lc"><a href="../new/bad_alloc.html" title="cpp/memory/new/bad alloc">std::bad_alloc</a></span> if required additional memory could not be obtained. May throw implementation-defined exception for other errors. This constructor has no effect if an exception occurs.</div>
<div class="t-li1"><span class="t-li">13)</span> If an exception is thrown, the constructor has no effects.</div>
<h3><span class="editsection">[<a href="http://en.cppreference.com/mwiki/index.php?title=cpp/memory/shared_ptr/shared_ptr&action=edit&section=4" title="Edit section: Example">edit</a>]</span> <span class="mw-headline" id="Example">Example</span></h3>
<div class="t-example"><div class="t-example-live-link"><div class="coliru-btn coliru-btn-run-init">Run this code</div></div>
<div dir="ltr" class="mw-geshi" style="text-align: left;"><div class="cpp source-cpp"><pre class="de1"><span class="co2">#include <memory></span>
<span class="co2">#include <iostream></span>
 
<span class="kw1">struct</span> Foo <span class="br0">{</span>
Foo<span class="br0">(</span><span class="br0">)</span> <span class="br0">{</span> <a href="../../io/cout.html"><span class="kw1481">std::<span class="me2">cout</span></span></a> <span class="sy1"><<</span> <span class="st0">"Foo...<span class="es1">\n</span>"</span><span class="sy4">;</span> <span class="br0">}</span>
~Foo<span class="br0">(</span><span class="br0">)</span> <span class="br0">{</span> <a href="../../io/cout.html"><span class="kw1481">std::<span class="me2">cout</span></span></a> <span class="sy1"><<</span> <span class="st0">"~Foo...<span class="es1">\n</span>"</span><span class="sy4">;</span> <span class="br0">}</span>
<span class="br0">}</span><span class="sy4">;</span>
 
<span class="kw1">struct</span> D <span class="br0">{</span>
<span class="kw4">void</span> operator<span class="br0">(</span><span class="br0">)</span><span class="br0">(</span>Foo<span class="sy2">*</span> p<span class="br0">)</span> <span class="kw4">const</span> <span class="br0">{</span>
<a href="../../io/cout.html"><span class="kw1481">std::<span class="me2">cout</span></span></a> <span class="sy1"><<</span> <span class="st0">"Call delete for Foo object...<span class="es1">\n</span>"</span><span class="sy4">;</span>
delete p<span class="sy4">;</span>
<span class="br0">}</span>
<span class="br0">}</span><span class="sy4">;</span>
 
<span class="kw4">int</span> main<span class="br0">(</span><span class="br0">)</span>
<span class="br0">{</span>
<span class="br0">{</span>
<a href="../../io/cout.html"><span class="kw1481">std::<span class="me2">cout</span></span></a> <span class="sy1"><<</span> <span class="st0">"constructor with no managed object<span class="es1">\n</span>"</span><span class="sy4">;</span>
<a href="../shared_ptr.html"><span class="kw615">std::<span class="me2">shared_ptr</span></span></a><span class="sy1"><</span>Foo<span class="sy1">></span> sh1<span class="sy4">;</span>
<span class="br0">}</span>
 
<span class="br0">{</span>
<a href="../../io/cout.html"><span class="kw1481">std::<span class="me2">cout</span></span></a> <span class="sy1"><<</span> <span class="st0">"constructor with object<span class="es1">\n</span>"</span><span class="sy4">;</span>
<a href="../shared_ptr.html"><span class="kw615">std::<span class="me2">shared_ptr</span></span></a><span class="sy1"><</span>Foo<span class="sy1">></span> sh2<span class="br0">(</span>new Foo<span class="br0">)</span><span class="sy4">;</span>
<a href="../shared_ptr.html"><span class="kw615">std::<span class="me2">shared_ptr</span></span></a><span class="sy1"><</span>Foo<span class="sy1">></span> sh3<span class="br0">(</span>sh2<span class="br0">)</span><span class="sy4">;</span>
<a href="../../io/cout.html"><span class="kw1481">std::<span class="me2">cout</span></span></a> <span class="sy1"><<</span> sh2.<span class="me1">use_count</span><span class="br0">(</span><span class="br0">)</span> <span class="sy1"><<</span> <span class="st0">'<span class="es1">\n</span>'</span><span class="sy4">;</span>
<a href="../../io/cout.html"><span class="kw1481">std::<span class="me2">cout</span></span></a> <span class="sy1"><<</span> sh3.<span class="me1">use_count</span><span class="br0">(</span><span class="br0">)</span> <span class="sy1"><<</span> <span class="st0">'<span class="es1">\n</span>'</span><span class="sy4">;</span>
<span class="br0">}</span>
 
<span class="br0">{</span>
<a href="../../io/cout.html"><span class="kw1481">std::<span class="me2">cout</span></span></a> <span class="sy1"><<</span> <span class="st0">"constructor with object and deleter<span class="es1">\n</span>"</span><span class="sy4">;</span>
<a href="../shared_ptr.html"><span class="kw615">std::<span class="me2">shared_ptr</span></span></a><span class="sy1"><</span>Foo<span class="sy1">></span> sh4<span class="br0">(</span>new Foo, D<span class="br0">(</span><span class="br0">)</span><span class="br0">)</span><span class="sy4">;</span>
<span class="br0">}</span>
<span class="br0">}</span></pre></div></div>
<p>Output:
</p>
<div dir="ltr" class="mw-geshi" style="text-align: left;"><div class="text source-text"><pre class="de1">constructor with no managed object
constructor with object
Foo...
2
2
~Foo...
constructor with object and deleter
Foo...
Call delete for Foo object...
~Foo...</pre></div></div>
</div>
<h3><span class="editsection">[<a href="http://en.cppreference.com/mwiki/index.php?title=cpp/memory/shared_ptr/shared_ptr&action=edit&section=5" title="Edit section: See also">edit</a>]</span> <span class="mw-headline" id="See_also">See also</span></h3>
<table class="t-dsc-begin">
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="make_shared.html" title="cpp/memory/shared ptr/make shared"> <span class="t-lines"><span>make_shared</span></span></a></div></div>
</td>
<td> creates a shared pointer that manages a new object <br /> <span class="t-mark">(function template)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/memory/shared_ptr/dsc_make_shared&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="allocate_shared.html" title="cpp/memory/shared ptr/allocate shared"> <span class="t-lines"><span>allocate_shared</span></span></a></div></div>
</td>
<td> creates a shared pointer that manages a new object allocated using an allocator <br /> <span class="t-mark">(function template)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/memory/shared_ptr/dsc_allocate_shared&action=edit">[edit]</a></span>
</td></tr>
</table>
<!--
NewPP limit report
Preprocessor visited node count: 8319/1000000
Preprocessor generated node count: 11162/1000000
Post‐expand include size: 188002/2097152 bytes
Template argument size: 38912/2097152 bytes
Highest expansion depth: 20/40
Expensive parser function count: 0/100
-->
<!-- Saved in parser cache with key mwiki1-mwiki_en_:pcache:idhash:2200-0!*!0!!en!*!* and timestamp 20151028042850 -->
</div> <!-- /bodycontent -->
<!-- printfooter -->
<div class="printfooter">
Retrieved from "<a href="http://en.cppreference.com/mwiki/index.php?title=cpp/memory/shared_ptr/shared_ptr&oldid=79140">http://en.cppreference.com/mwiki/index.php?title=cpp/memory/shared_ptr/shared_ptr&oldid=79140</a>" </div>
<!-- /printfooter -->
<!-- catlinks -->
<div id='catlinks' class='catlinks'><div id="mw-normal-catlinks" class="mw-normal-catlinks"><a href="http://en.cppreference.com/w/Special:Categories" title="Special:Categories">Category</a>: <ul><li><a href="http://en.cppreference.com/mwiki/index.php?title=Category:unconditionally_noexcept&action=edit&redlink=1" class="new" title="Category:unconditionally noexcept (page does not exist)">unconditionally noexcept</a></li></ul></div></div> <!-- /catlinks -->
<div class="visualClear"></div>
<!-- debughtml -->
<!-- /debughtml -->
</div>
<!-- /bodyContent -->
</div>
</div>
<!-- /content -->
<!-- footer -->
<div id="cpp-footer-base" class="noprint">
<div id="footer">
<div id="cpp-navigation">
<h5>Navigation</h5>
<ul>
<li id="n-Support-us"><a href="http://www.cppreference.com/support" rel="nofollow">Support us</a></li><li id="n-recentchanges"><a href="http://en.cppreference.com/w/Special:RecentChanges" title="A list of recent changes in the wiki [r]" accesskey="r">Recent changes</a></li><li id="n-FAQ"><a href="http://en.cppreference.com/w/Cppreference:FAQ">FAQ</a></li><li id="n-Offline-version"><a href="http://en.cppreference.com/w/Cppreference:Archives">Offline version</a></li> </ul>
</div>
<div id="cpp-toolbox">
<h5><span>Toolbox</span><a href="shared_ptr.html#"></a></h5>
<ul>
<li id="t-whatlinkshere"><a href="http://en.cppreference.com/w/Special:WhatLinksHere/cpp/memory/shared_ptr/shared_ptr" title="A list of all wiki pages that link here [j]" accesskey="j">What links here</a></li><li id="t-recentchangeslinked"><a href="http://en.cppreference.com/w/Special:RecentChangesLinked/cpp/memory/shared_ptr/shared_ptr" title="Recent changes in pages linked from this page [k]" accesskey="k">Related changes</a></li><li id="t-upload"><a href="http://upload.cppreference.com/w/Special:Upload" title="Upload files [u]" accesskey="u">Upload file</a></li><li id="t-specialpages"><a href="http://en.cppreference.com/w/Special:SpecialPages" title="A list of all special pages [q]" accesskey="q">Special pages</a></li><li id="t-print"><a href="http://en.cppreference.com/mwiki/index.php?title=cpp/memory/shared_ptr/shared_ptr&printable=yes" rel="alternate" title="Printable version of this page [p]" accesskey="p">Printable version</a></li><li id="t-permalink"><a href="http://en.cppreference.com/mwiki/index.php?title=cpp/memory/shared_ptr/shared_ptr&oldid=79140" title="Permanent link to this revision of the page">Permanent link</a></li><li id="t-info"><a href="http://en.cppreference.com/mwiki/index.php?title=cpp/memory/shared_ptr/shared_ptr&action=info">Page information</a></li> </ul>
</div>
<div id="cpp-languages">
<div><ul><li>In other languages</li></ul></div>
<div><ul>
<li class="interwiki-de"><a href="http://de.cppreference.com/w/cpp/memory/shared_ptr/shared_ptr" title="cpp/memory/shared ptr/shared ptr" lang="de" hreflang="de">Deutsch</a></li><li class="interwiki-es"><a href="http://es.cppreference.com/w/cpp/memory/shared_ptr/shared_ptr" title="cpp/memory/shared ptr/shared ptr" lang="es" hreflang="es">Español</a></li><li class="interwiki-fr"><a href="http://fr.cppreference.com/w/cpp/memory/shared_ptr/shared_ptr" title="cpp/memory/shared ptr/shared ptr" lang="fr" hreflang="fr">Français</a></li><li class="interwiki-it"><a href="http://it.cppreference.com/w/cpp/memory/shared_ptr/shared_ptr" title="cpp/memory/shared ptr/shared ptr" lang="it" hreflang="it">Italiano</a></li><li class="interwiki-ja"><a href="http://ja.cppreference.com/w/cpp/memory/shared_ptr/shared_ptr" title="cpp/memory/shared ptr/shared ptr" lang="ja" hreflang="ja">日本語</a></li><li class="interwiki-pt"><a href="http://pt.cppreference.com/w/cpp/memory/shared_ptr/shared_ptr" title="cpp/memory/shared ptr/shared ptr" lang="pt" hreflang="pt">Português</a></li><li class="interwiki-ru"><a href="http://ru.cppreference.com/w/cpp/memory/shared_ptr/shared_ptr" title="cpp/memory/shared ptr/shared ptr" lang="ru" hreflang="ru">Русский</a></li><li class="interwiki-zh"><a href="http://zh.cppreference.com/w/cpp/memory/shared_ptr/shared_ptr" title="cpp/memory/shared ptr/shared ptr" lang="zh" hreflang="zh">中文</a></li> </ul></div>
</div>
<ul id="footer-info">
<li id="footer-info-lastmod"> This page was last modified on 24 June 2015, at 11:50.</li>
<li id="footer-info-viewcount">This page has been accessed 91,012 times.</li>
</ul>
<ul id="footer-places">
<li id="footer-places-privacy"><a href="http://en.cppreference.com/w/Cppreference:Privacy_policy" title="Cppreference:Privacy policy">Privacy policy</a></li>
<li id="footer-places-about"><a href="http://en.cppreference.com/w/Cppreference:About" title="Cppreference:About">About cppreference.com</a></li>
<li id="footer-places-disclaimer"><a href="http://en.cppreference.com/w/Cppreference:General_disclaimer" title="Cppreference:General disclaimer">Disclaimers</a></li>
</ul>
<ul id="footer-icons" class="noprint">
<li id="footer-poweredbyico">
<a href="http://www.mediawiki.org/"><img src="../../../../mwiki/skins/common/images/poweredby_mediawiki_88x31.png" alt="Powered by MediaWiki" width="88" height="31" /></a> <a href="http://qbnz.com/highlighter/"><img src="../../../../../upload.cppreference.com/mwiki/images/2/2b/powered_by_geshi_88x31.png" alt="Powered by GeSHi" height="31" width="88" /></a> <a href="http://www.tigertech.net/referral/cppreference.com"><img src="../../../../../upload.cppreference.com/mwiki/images/9/94/powered_by_tigertech_88x31.png" alt="Hosted by Tiger Technologies" height="31" width="88" /></a> </li>
</ul>
<div style="clear:both">
</div>
</div>
</div>
<!-- /footer -->
<script>if(window.mw){
mw.loader.state({"site":"loading","user":"missing","user.groups":"ready"});
}</script>
<script src="../../../../mwiki/load.php%3Fdebug=false&lang=en&modules=skins.cppreference2&only=scripts&skin=cppreference2&*"></script>
<script>if(window.mw){
mw.loader.load(["mediawiki.action.view.postEdit","mediawiki.user","mediawiki.page.ready","mediawiki.searchSuggest","mediawiki.hidpi","ext.gadget.ColiruCompiler"], null, true);
}</script>
<script src="../../../../mwiki/load.php%3Fdebug=false&lang=en&modules=site&only=scripts&skin=cppreference2&*"></script>
<script type="text/javascript">
var gaJsHost = (("https:" == document.location.protocol) ? "https://ssl." : "http://www.");
document.write(unescape("%3Cscript src='" + gaJsHost + "google-analytics.com/ga.js' type='text/javascript'%3E%3C/script%3E"));
</script>
<script type="text/javascript">
var _gaq = _gaq || [];
_gaq.push(['_setAccount', 'UA-2828341-1']);
_gaq.push(['_setDomainName', 'cppreference.com']);
_gaq.push(['_trackPageview']);
</script><!-- Served in 4.622 secs. -->
</body>
<!-- Cached 20151028042850 -->
</html>
|
