锘??xml version="1.0" encoding="utf-8" standalone="yes"?>香蕉久久永久视频,国产精品久久永久免费,少妇精品久久久一区二区三区http://www.shnenglu.com/liangairan/category/16869.html涓嶆柇瀛︿範(fàn)錛屼笉鏂疄璺碉紝涓嶆柇鐨勯噸鏋勨︹?/description>zh-cnMon, 30 May 2011 00:00:00 GMTMon, 30 May 2011 00:00:00 GMT60澶嶄範(fàn)C++鈥斺旀繁鍏ew錛堣漿錛?/title><link>http://www.shnenglu.com/liangairan/articles/147571.html</link><dc:creator>欖旈铻寵瀭</dc:creator><author>欖旈铻寵瀭</author><pubDate>Sun, 29 May 2011 03:06:00 GMT</pubDate><guid>http://www.shnenglu.com/liangairan/articles/147571.html</guid><wfw:comment>http://www.shnenglu.com/liangairan/comments/147571.html</wfw:comment><comments>http://www.shnenglu.com/liangairan/articles/147571.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.shnenglu.com/liangairan/comments/commentRss/147571.html</wfw:commentRss><trackback:ping>http://www.shnenglu.com/liangairan/services/trackbacks/147571.html</trackback:ping><description><![CDATA[<div><p>   杞嚜錛歨ttp://tech.e800.com.cn/articles/2010/56/1273126029787_1.html  <br /></p><p>      “new”鏄疌++鐨勪竴涓叧閿瓧錛屽悓鏃朵篃鏄搷浣滅銆傚叧浜巒ew鐨勮瘽棰橀潪甯稿錛屽洜涓哄畠紜疄姣旇緝澶嶆潅錛屼篃闈炲父紲炵錛屼笅闈㈡垜灝嗘妸鎴戜簡瑙e埌鐨勪笌new鏈夊叧鐨勫唴瀹瑰仛涓涓葷粨銆?/p> <p>銆銆new鐨勮繃紼?/p> <p>銆銆褰撴垜浠嬌鐢ㄥ叧閿瓧new鍦ㄥ爢涓婂姩鎬佸垱寤轟竴涓璞℃椂錛屽畠瀹為檯涓婂仛浜嗕笁浠朵簨錛氳幏寰椾竴鍧楀唴瀛樼┖闂淬佽皟鐢ㄦ瀯閫犲嚱鏁般佽繑鍥炴紜殑鎸囬拡銆傚綋鐒?dòng)灱屽鏋滄垜浠垱寰忕殑鏄巰鍗曠被鍨嬬殑鍙橀噺錛岄偅涔堢浜屾浼?xì)琚渷鐣ャ傚亣濡傛垜浠畾涔変簡濡備笅涓涓被A錛?/p> <p>銆銆class A</p> <p>銆銆{</p> <p>銆銆int i;</p> <p>銆銆public:</p> <p>銆銆A(int _i) :i(_i*_i) {}</p> <p>銆銆void Say()  { printf("i=%dn", i); }</p> <p>銆銆};</p> <p>銆銆//璋冪敤new錛?/p> <p>銆銆A* pa = new A(3);</p> <p>銆銆閭d箞涓婅堪鍔ㄦ佸垱寤轟竴涓璞$殑榪囩▼澶ц嚧鐩稿綋浜庝互涓嬩笁鍙ヨ瘽錛堝彧鏄ぇ鑷翠笂錛夛細(xì)</p> <p>銆銆A* pa = (A*)malloc(sizeof(A));</p> <p>銆銆pa->A::A(3);</p> <p>銆銆return pa;</p> <p>銆銆铏界劧浠庢晥鏋滀笂鐪嬶紝榪欎笁鍙ヨ瘽涔熷緱鍒頒簡涓涓湁鏁堢殑鎸囧悜鍫嗕笂鐨凙瀵硅薄鐨勬寚閽坧a錛屼絾鍖哄埆鍦ㄤ簬錛屽綋malloc澶辮觸鏃訛紝瀹冧笉浼?xì)璋冪敤鍒嗛厤鍐呭瓨澶辫触澶勭悊绋嬪簭new_handler錛岃屼嬌鐢╪ew鐨勮瘽浼?xì)鐨勩傚洜姝ゆ垜浠繕鏄灝藉彲鑳界殑浣跨敤new錛岄櫎闈炴湁涓浜涚壒孌婄殑闇姹傘?/p> <p>銆銆new鐨勪笁縐嶅艦鎬?/p> <p>銆銆鍒扮洰鍓嶄負(fù)姝紝鏈枃鎵鎻愬埌鐨刵ew閮芥槸鎸囩殑“new operator”鎴栫О涓?#8220;new expression”錛屼絾浜嬪疄涓婂湪C++涓竴鎻愬埌new錛岃嚦灝戝彲鑳戒唬琛ㄤ互涓嬩笁縐嶅惈涔夛細(xì)new operator銆乷perator new銆乸lacement new銆?/p> <p>銆銆new operator灝辨槸鎴戜滑騫蟲椂鎵浣跨敤鐨刵ew錛屽叾琛屼負(fù)灝辨槸鍓嶉潰鎵璇寸殑涓変釜姝ラ錛屾垜浠笉鑳芥洿鏀瑰畠銆備絾鍏蜂綋鍒版煇涓姝ラ涓殑琛屼負(fù)錛屽鏋滃畠涓嶆弧瓚蟲垜浠殑鍏蜂綋瑕佹眰 鏃訛紝鎴戜滑鏄湁鍙兘鏇存敼瀹冪殑銆備笁涓楠や腑鏈鍚庝竴姝ュ彧鏄畝鍗曠殑鍋氫竴涓寚閽堢殑綾誨瀷杞崲錛屾病浠涔堝彲璇寸殑錛屽茍涓斿湪緙栬瘧鍑虹殑浠g爜涓篃騫朵笉闇瑕佽繖縐嶈漿鎹紝鍙槸浜轟負(fù)鐨勮璇? 緗簡銆備絾鍓嶄袱姝ュ氨鏈変簺鍐呭浜嗐?/p> <p>銆銆new operator鐨勭涓姝ュ垎閰嶅唴瀛樺疄闄呬笂鏄氳繃璋冪敤operator new鏉ュ畬鎴愮殑錛岃繖閲岀殑new瀹為檯涓婃槸鍍忓姞鍑忎箻闄や竴鏍風(fēng)殑鎿嶄綔絎︼紝鍥犳涔熸槸鍙互閲嶈澆鐨勩俹perator new榛樿鎯呭喌涓嬮鍏堣皟鐢ㄥ垎閰嶅唴瀛樼殑浠g爜錛屽皾璇曞緱鍒頒竴孌靛爢涓婄殑絀洪棿錛屽鏋滄垚鍔熷氨榪斿洖錛屽鏋滃け璐ワ紝鍒欒漿鑰屽幓璋冪敤涓涓猲ew_hander錛岀劧鍚庣戶緇噸澶嶅墠闈? 榪囩▼銆傚鏋滄垜浠榪欎釜榪囩▼涓嶆弧鎰忥紝灝卞彲浠ラ噸杞給perator new錛屾潵璁劇疆鎴戜滑甯屾湜鐨勮涓恒備緥濡傦細(xì)</p> <p>銆銆class A</p> <p>銆銆{</p> <p>銆銆public:</p> <p>銆銆void* operator new(size_t size)</p> <p>銆銆{</p> <p>銆銆printf("operator new calledn");</p> <p>銆銆return ::operator new(size);</p> <p>銆銆}</p> <p>銆銆};</p> <p>銆銆A* a = new A();</p> <p>銆銆榪欓噷閫氳繃::operator new璋冪敤浜嗗師鏈夌殑鍏ㄥ眬鐨刵ew錛屽疄鐜頒簡鍦ㄥ垎閰嶅唴瀛樹箣鍓嶈緭鍑轟竴鍙ヨ瘽銆傚叏灞鐨刼perator new涔熸槸鍙互閲嶈澆鐨勶紝浣嗚繖鏍蜂竴鏉ュ氨涓嶈兘鍐嶉掑綊鐨勪嬌鐢╪ew鏉ュ垎閰嶅唴瀛橈紝鑰屽彧鑳戒嬌鐢╩alloc浜嗭細(xì)</p> <p>銆銆void* operator new(size_t size)</p> <p>銆銆{</p> <p>銆銆printf("global newn");</p> <p>銆銆return malloc(size);</p> <p>銆銆}</p> <p>銆銆鐩稿簲鐨勶紝delete涔熸湁delete operator鍜宱perator delete涔嬪垎錛屽悗鑰呬篃鏄彲浠ラ噸杞界殑銆傚茍涓旓紝濡傛灉閲嶈澆浜唎perator new錛屽氨搴旇涔熺浉搴旂殑閲嶈澆operator delete錛岃繖鏄壇濂界殑緙栫▼涔?fàn)鎯?/p> <p>銆銆new鐨勭涓夌褰㈡?-placement new鏄敤鏉ュ疄鐜板畾浣嶆瀯閫犵殑錛屽洜姝ゅ彲浠ュ疄鐜皀ew operator涓夋鎿嶄綔涓殑絎簩姝ワ紝涔熷氨鏄湪鍙栧緱浜嗕竴鍧楀彲浠ュ綰蟲寚瀹氱被鍨嬪璞$殑鍐呭瓨鍚庯紝鍦ㄨ繖鍧楀唴瀛樹笂鏋勯犱竴涓璞★紝榪欐湁鐐圭被浼間簬鍓嶉潰浠g爜涓殑 “p->A::A(3);”榪欏彞璇濓紝浣嗚繖騫朵笉鏄竴涓爣鍑嗙殑鍐欐硶錛屾紜殑鍐欐硶鏄嬌鐢╬lacement new錛?/p> <p>銆銆#include </p> <p>銆銆void main()</p> <p>銆銆{</p> <p>銆銆char s[sizeof(A)];</p> <p>銆銆A* p = (A*)s;</p> <p>銆銆new(p) A(3); //p->A::A(3);</p> <p>銆銆p->Say();</p> <p>銆銆}</p> <p>瀵瑰ご鏂囦歡鎴栫殑寮曠敤鏄繀欏葷殑錛岃繖鏍鋒墠 鍙互浣跨敤placement new銆傝繖閲?#8220;new(p) A(3)”榪欑濂囨殑鍐欐硶渚挎槸placement new浜嗭紝瀹冨疄鐜頒簡鍦ㄦ寚瀹氬唴瀛樺湴鍧涓婄敤鎸囧畾綾誨瀷鐨勬瀯閫犲嚱鏁版潵鏋勯犱竴涓璞$殑鍔熻兘錛屽悗闈(3)灝辨槸瀵規(guī)瀯閫犲嚱鏁扮殑鏄懼紡璋冪敤銆傝繖閲屼笉闅懼彂鐜幫紝榪欏潡鎸囧畾鐨勫湴鍧鏃? 鍙互鏄爤錛屽張鍙互鏄爢錛宲lacement瀵規(guī)涓嶅姞鍖哄垎銆備絾鏄紝闄ら潪鐗瑰埆蹇呰錛屼笉瑕佺洿鎺ヤ嬌鐢╬lacement new 錛岃繖姣曠珶涓嶆槸鐢ㄦ潵鏋勯犲璞$殑姝e紡鍐欐硶錛屽彧涓嶈繃鏄痭ew operator鐨勪竴涓楠よ屽凡銆備嬌鐢╪ew operator鍦扮紪璇戝櫒浼?xì)鑷姩鐢熸垚瀵筽lacement new鐨勮皟鐢ㄧ殑浠g爜錛屽洜姝や篃浼?xì)鐩稿簲鐨勭敓鎴愪娇鐢╠elete鏃惰皟鐢ㄦ瀽鏋勫嚱鏁扮殑浠g爜銆傚鏋滄槸鍍忎笂闈㈤偅鏍峰湪鏍堜笂浣跨敤浜唒lacement new錛屽垯蹇呴』鎵嬪伐璋冪敤鏋愭瀯鍑芥暟錛岃繖涔熸槸鏄懼紡璋冪敤鏋愭瀯鍑芥暟鐨勫敮涓鎯呭喌錛?/p> <p>銆銆p->~A();</p> <p>銆銆褰撴垜浠寰楅粯璁ょ殑new operator瀵瑰唴瀛樼殑綆$悊涓嶈兘婊¤凍鎴戜滑鐨勯渶瑕侊紝鑰屽笇鏈涜嚜宸辨墜宸ョ殑綆$悊鍐呭瓨鏃訛紝placement new灝辨湁鐢ㄤ簡銆係TL涓殑allocator灝變嬌鐢ㄤ簡榪欑鏂瑰紡錛屽熷姪placement new鏉ュ疄鐜版洿鐏墊椿鏈夋晥鐨勫唴瀛樼鐞嗐?/p> <p>銆銆澶勭悊鍐呭瓨鍒嗛厤寮傚父</p> <p>銆銆姝e鍓嶉潰鎵璇達(dá)紝operator new鐨勯粯璁よ涓烘槸璇鋒眰鍒嗛厤鍐呭瓨錛屽鏋滄垚鍔熷垯榪斿洖姝ゅ唴瀛樺湴鍧錛屽鏋滃け璐ュ垯璋冪敤涓涓猲ew_handler錛岀劧鍚庡啀閲嶅姝よ繃紼嬨備簬鏄紝鎯寵浠巓perator new鐨勬墽琛岃繃紼嬩腑榪斿洖錛屽垯蹇呯劧闇瑕佹弧瓚充笅鍒楁潯浠朵箣涓錛?/p> <p>銆銆* 鍒嗛厤鍐呭瓨鎴愬姛</p> <p>銆銆* new_handler涓姏鍑篵ad_alloc寮傚父</p> <p>銆銆* new_handler涓皟鐢╡xit()鎴栫被浼肩殑鍑芥暟錛屼嬌紼嬪簭緇撴潫</p> <p>銆銆浜庢槸錛屾垜浠彲浠ュ亣璁鵑粯璁ゆ儏鍐典笅operator new鐨勮涓烘槸榪欐牱鐨勶細(xì)</p> <p>銆銆void* operator new(size_t size)</p> <p>銆銆{</p> <p>銆銆void* p = null</p> <p>銆銆while(!(p = malloc(size)))</p> <p>銆銆{</p> <p>銆銆if(null == new_handler)</p> <p>銆銆throw bad_alloc();</p> <p>銆銆try</p> <p>銆銆{</p> <p>銆銆new_handler();</p> <p>銆銆}</p> <p>銆銆catch(bad_alloc e)</p> <p>銆銆{</p> <p>銆銆throw e;</p> <p>銆銆}</p> <p>銆銆catch(…)</p> <p>銆銆{}</p> <p>銆銆}</p> <p>銆銆return p;</p> <p>銆銆}</p> <p>銆銆鍦ㄩ粯璁ゆ儏鍐典笅錛宯ew_handler鐨勮涓烘槸鎶涘嚭涓涓猙ad_alloc寮傚父錛屽洜姝? 涓婅堪寰幆鍙細(xì)鎵ц涓嬈°備絾濡傛灉鎴戜滑涓嶅笇鏈涗嬌鐢ㄩ粯璁よ涓猴紝鍙互鑷畾涔変竴涓猲ew_handler錛屽茍浣跨敤std::set_new_handler鍑芥暟浣垮叾 鐢熸晥銆傚湪鑷畾涔夌殑new_handler涓紝鎴戜滑鍙互鎶涘嚭寮傚父錛屽彲浠ョ粨鏉熺▼搴忥紝涔熷彲浠ヨ繍琛屼竴浜涗唬鐮佷嬌寰楁湁鍙兘鏈夊唴瀛樿絀洪棽鍑烘潵錛屼粠鑰屼笅涓嬈″垎閰嶆椂涔熻浼?xì)鎴? 鍔燂紝涔熷彲浠ラ氳繃set_new_handler鏉ュ畨瑁呭彟涓涓彲鑳芥洿鏈夋晥鐨刵ew_handler銆備緥濡傦細(xì)</p> <p>銆銆void MyNewHandler()</p> <p>銆銆{</p> <p>銆銆printf(“New handler called!n”);</p> <p>銆銆throw std::bad_alloc();</p> <p>銆銆}</p> <p>銆銆std::set_new_handler(MyNewHandler);</p> <p>銆銆榪欓噷new_handler紼嬪簭鍦ㄦ姏鍑哄紓甯鎬箣鍓嶄細(xì)杈撳嚭涓鍙ヨ瘽銆傚簲璇ユ敞鎰忥紝鍦? new_handler鐨勪唬鐮侀噷搴旇娉ㄦ剰閬垮厤鍐嶅祵濂楁湁瀵筺ew鐨勮皟鐢紝鍥犱負(fù)濡傛灉榪欓噷璋冪敤new鍐嶅け璐ョ殑璇濓紝鍙兘浼?xì)鍐嶅D嚧瀵筺ew_handler鐨勮皟鐢紝 浠庤屽鑷存棤闄愰掑綊璋冪敤銆?-榪欐槸鎴戠寽鐨勶紝騫舵病鏈夊皾璇曡繃銆?/p> <p>銆銆鍦ㄧ紪紼嬫椂鎴戜滑搴旇娉ㄦ剰鍒板new鐨勮皟鐢ㄦ槸鏈夊彲鑳芥湁寮傚父琚姏鍑虹殑錛屽洜姝ゅ湪new鐨勪唬鐮佸懆鍥村簲璇ユ敞鎰忎繚鎸佸叾浜嬪姟鎬э紝鍗充笉鑳藉洜涓鴻皟鐢╪ew澶辮觸鎶涘嚭寮傚父鏉ュ鑷翠笉姝g‘鐨勭▼搴忛昏緫鎴栨暟鎹粨鏋勭殑鍑虹幇銆備緥濡傦細(xì)</p> <p>銆銆class SomeClass</p> <p>銆銆{</p> <p>銆銆static int count;</p> <p>銆銆SomeClass() {}</p> <p>銆銆public:</p> <p>銆銆static SomeClass* GetNewInstance()</p> <p>銆銆{</p> <p>銆銆count++;</p> <p>銆銆return new SomeClass();</p> <p>銆銆}</p> <p>銆銆};</p> <p>闈欐佸彉閲廲ount鐢ㄤ簬璁板綍姝ょ被鍨嬬敓鎴愮殑瀹炰緥鐨勪釜鏁幫紝鍦ㄤ笂榪頒唬鐮佷腑錛屽鏋滃洜new鍒嗛厤鍐呭瓨澶辮觸鑰屾姏鍑哄紓甯革紝閭d箞鍏跺疄渚嬩釜鏁板茍娌℃湁澧炲姞錛屼絾count鍙橀噺鐨勫煎嵈宸茬粡澶氫簡涓涓紝浠庤屾暟鎹粨鏋勮鐮村潖銆傛紜殑鍐欐硶鏄細(xì)</p> <p>銆銆static SomeClass* GetNewInstance()</p> <p>銆銆{</p> <p>銆銆SomeClass* p = new SomeClass();</p> <p>銆銆count++;</p> <p>銆銆return p;</p> <p>銆銆}</p> <p>銆銆榪欐牱涓鏉ワ紝濡傛灉new澶辮觸鍒欑洿鎺ユ姏鍑哄紓甯革紝count鐨勫間笉浼?xì)澧炲姞銆傜被浼肩殑錛屽湪澶勭悊綰跨▼鍚屾鏃訛紝涔熻娉ㄦ剰綾諱技鐨勯棶棰橈細(xì)</p> <p>銆銆void SomeFunc()</p> <p>銆銆{</p> <p>銆銆lock(someMutex); //鍔犱竴涓攣</p> <p>銆銆delete p;</p> <p>銆銆p = new SomeClass();</p> <p>銆銆unlock(someMutex);</p> <p>銆銆}</p> <p>銆銆姝ゆ椂錛屽鏋渘ew澶辮觸錛寀nlock灝嗕笉浼?xì)琚墽琛屽Q屼簬鏄笉浠呴犳垚浜嗕竴涓寚鍚戜笉姝g‘鍦板潃鐨勬寚閽坧鐨勫瓨鍦紝榪樺皢瀵艱嚧someMutex姘歌繙涓嶄細(xì)琚В閿併傝繖縐嶆儏鍐墊槸瑕佹敞鎰忛伩鍏嶇殑銆傦紙鍙傝冿細(xì)C++綆磋█錛氫簤鍙栧紓甯稿畨鍏ㄧ殑浠g爜錛? <<a >http://dev.yesky.com/490/2087990.shtml</a>></p> <p>銆銆STL鐨勫唴瀛樺垎閰嶄笌traits鎶宸?/p> <p>銆銆鍦ㄣ奡TL鍘熺爜鍓栨瀽銆嬩竴涔︿腑璇︾粏鍒嗘瀽浜哠GI STL鐨勫唴瀛樺垎閰嶅櫒鐨勮涓恒備笌鐩存帴浣跨敤new operator涓嶅悓鐨勬槸錛孲GI STL騫朵笉渚濊禆C++榛樿鐨勫唴瀛樺垎閰嶆柟寮忥紝鑰屾槸浣跨敤涓濂楄嚜琛屽疄鐜扮殑鏂規(guī)銆傞鍏圫GI STL灝嗗彲鐢ㄥ唴瀛樻暣鍧楃殑鍒嗛厤錛屼嬌涔嬫垚涓哄綋鍓嶈繘紼嬪彲鐢ㄧ殑鍐呭瓨錛屽綋紼嬪簭涓‘瀹為渶瑕佸垎閰嶅唴瀛樻椂錛屽厛浠庤繖浜涘凡璇鋒眰濂界殑澶у唴瀛樺潡涓皾璇曞彇寰楀唴瀛橈紝濡傛灉澶辮觸鐨勮瘽鍐嶅皾璇? 鏁村潡鐨勫垎閰嶅ぇ鍐呭瓨銆傝繖縐嶅仛娉曟湁鏁堢殑閬垮厤浜嗗ぇ閲忓唴瀛樼鐗囩殑鍑虹幇錛屾彁楂樹簡鍐呭瓨綆$悊鏁堢巼銆?/p> <p>銆銆涓轟簡瀹炵幇榪欑鏂瑰紡錛孲TL浣跨敤浜唒lacement new錛岄氳繃鍦ㄨ嚜宸辯鐞嗙殑鍐呭瓨絀洪棿涓婁嬌鐢╬lacement new鏉ユ瀯閫犲璞★紝浠ヨ揪鍒板師鏈塶ew operator鎵鍏鋒湁鐨勫姛鑳姐?/p> <p>銆銆template </p> <p>銆銆inline void construct(T1* p, const T2& value)</p> <p>銆銆{</p> <p>銆銆new(p) T1(value);</p> <p>銆銆}</p> <p>銆銆姝ゅ嚱鏁版帴鏀朵竴涓凡鏋勯犵殑瀵硅薄錛岄氳繃鎷瘋礉鏋勯犵殑鏂瑰紡鍦ㄧ粰瀹氱殑鍐呭瓨鍦板潃p涓婃瀯閫犱竴涓柊瀵?璞★紝浠g爜涓悗鍗婃埅T1(value)渚挎槸placement new璇硶涓皟鐢ㄦ瀯閫犲嚱鏁扮殑鍐欐硶錛屽鏋滀紶鍏ョ殑瀵硅薄value姝f槸鎵瑕佹眰鐨勭被鍨婽1錛岄偅涔堣繖閲屽氨鐩稿綋浜庤皟鐢ㄦ嫹璐濇瀯閫犲嚱鏁般傜被浼肩殑錛屽洜浣跨敤浜?placement new錛岀紪璇戝櫒涓嶄細(xì)鑷姩浜х敓璋冪敤鏋愭瀯鍑芥暟鐨勪唬鐮侊紝闇瑕佹墜宸ョ殑瀹炵幇錛?/p> <p>銆銆template </p> <p>銆銆inline void destory(T* pointer)</p> <p>銆銆{</p> <p>銆銆pointer->~T();</p> <p>銆銆}</p> <p>銆銆涓庢鍚屾椂錛孲TL涓繕鏈変竴涓帴鏀朵袱涓凱浠e櫒鐨刣estory鐗堟湰錛屽彲灝嗘煇瀹瑰櫒涓婃寚瀹氳寖 鍥村唴鐨勫璞″叏閮ㄩ攢姣併傚吀鍨嬬殑瀹炵幇鏂瑰紡灝辨槸閫氳繃涓涓驚鐜潵瀵規(guī)鑼冨洿鍐呯殑瀵硅薄閫愪竴璋冪敤鏋愭瀯鍑芥暟銆傚鏋滄墍浼犲叆鐨勫璞℃槸闈炵畝鍗曠被鍨嬶紝榪欐牱鍋氭槸蹇呰鐨勶紝浣嗗鏋滀紶鍏ョ殑 鏄畝鍗曠被鍨嬶紝鎴栬呮牴鏈病鏈夊繀瑕佽皟鐢ㄦ瀽鏋勫嚱鏁扮殑鑷畾涔夌被鍨嬶紙渚嬪鍙寘鍚暟涓猧nt鎴愬憳鐨勭粨鏋勪綋錛夛紝閭d箞鍐嶉愪竴璋冪敤鏋愭瀯鍑芥暟鏄病鏈夊繀瑕佺殑錛屼篃嫻垂浜嗘椂闂淬備負(fù) 姝わ紝STL浣跨敤浜嗕竴縐嶇О涓?#8220;type traits”鐨勬妧宸э紝鍦ㄧ紪璇戝櫒灝卞垽鏂嚭鎵浼犲叆鐨勭被鍨嬫槸鍚﹂渶瑕佽皟鐢ㄦ瀽鏋勫嚱鏁幫細(xì)</p> <p>銆銆template </p> <p>銆銆inline void destory(ForwardIterator first, ForwardIterator last)</p> <p>銆銆{</p> <p>銆銆__destory(first, last, value_type(first));</p> <p>銆銆}</p> <p>銆銆鍏朵腑value_type()鐢ㄤ簬鍙栧嚭榪唬鍣ㄦ墍鎸囧悜鐨勫璞$殑綾誨瀷淇℃伅錛屼簬鏄細(xì)</p> <p>銆銆template</p> <p>銆銆inline void __destory(ForwardIterator first, ForwardIterator last, T*)</p> <p>銆銆{</p> <p>銆銆typedef typename __type_traits::has_trivial_destructor trivial_destructor;</p> <p>銆銆__destory_aux(first, last, trivial_destructor());</p> <p>銆銆}</p> <p>銆銆//濡傛灉闇瑕佽皟鐢ㄦ瀽鏋勫嚱鏁幫細(xì)</p> <p>銆銆template</p> <p>銆銆inline void __destory_aux(ForwardIterator first, ForwardIterator last, __false_type)</p> <p>銆銆{</p> <p>銆銆for(; first < last; ++first)</p> <p>銆銆destory(&*first); //鍥爁irst鏄凱浠e櫒錛?first鍙栧嚭鍏剁湡姝e唴瀹癸紝鐒跺悗鍐嶇敤&鍙栧湴鍧</p> <p>銆銆}</p> <p>銆銆//濡傛灉涓嶉渶瑕侊紝灝變粈涔堜篃涓嶅仛錛?/p> <p>銆銆tempalte</p> <p>銆銆inline void __destory_aux(ForwardIterator first, ForwardIterator last, __true_type)</p> <p>銆銆{}</p> <p>銆銆鍥犱笂榪板嚱鏁板叏閮芥槸inline鐨勶紝鎵浠ュ灞傜殑鍑芥暟璋冪敤騫朵笉浼?xì)瀵规ц兘閫犳垚褰卞搷錛屾渶緇堢紪璇? 鐨勭粨鏋滄牴鎹叿浣撶殑綾誨瀷灝卞彧鏄竴涓猣or寰幆鎴栬呬粈涔堥兘娌℃湁銆傝繖閲岀殑鍏抽敭鍦ㄤ簬__type_traits榪欎釜妯℃澘綾諱笂錛屽畠鏍規(guī)嵁涓嶅悓鐨凾綾? 鍨嬪畾涔夊嚭涓嶅悓鐨刪as_trivial_destructor鐨勭粨鏋滐紝濡傛灉T鏄畝鍗曠被鍨嬶紝灝卞畾涔変負(fù)__true_type綾誨瀷錛屽惁鍒欏氨瀹氫箟涓? __false_type綾誨瀷銆傚叾涓璤_true_type銆乢_false_type鍙笉榪囨槸涓や釜娌℃湁浠諱綍鍐呭鐨勭被錛屽紼嬪簭鐨勬墽琛岀粨鏋滄病鏈変粈涔堟剰涔夛紝浣? 鍦ㄧ紪璇戝櫒鐪嬫潵瀹冨妯℃澘濡備綍鐗瑰寲灝卞叿鏈夐潪甯擱噸瑕佺殑鎸囧鎰忎箟浜嗭紝姝e涓婇潰浠g爜鎵紺虹殑閭f牱銆俖_type_traits涔熸槸鐗瑰寲浜嗙殑涓緋誨垪妯?鏉跨被錛?/p> <p>銆銆struct __true_type {};</p> <p>銆銆struct __false_type {};</p> <p>銆銆template </p> <p>銆銆struct __type_traits</p> <p>銆銆{</p> <p>銆銆public:</p> <p>銆銆typedef __false _type has_trivial_destructor;</p> <p>銆銆……</p> <p>銆銆};</p> <p>銆銆template<> //妯℃澘鐗瑰寲</p> <p>銆銆struct __type_traits    //int鐨勭壒鍖栫増鏈?/p> <p>銆銆{</p> <p>銆銆public:</p> <p>銆銆typedef __true_type has_trivial_destructor;</p> <p>銆銆……</p> <p>銆銆};</p> <p>銆銆…… //鍏朵粬綆鍗曠被鍨嬬殑鐗瑰寲鐗堟湰</p> <p>銆銆濡傛灉瑕佹妸涓涓嚜瀹氫箟鐨勭被鍨婱yClass涔熷畾涔変負(fù)涓嶈皟鐢ㄦ瀽鏋勫嚱鏁幫紝鍙渶瑕佺浉搴旂殑瀹氫箟__type_traits鐨勪竴涓壒鍖栫増鏈嵆鍙細(xì)</p> <p>銆銆template<></p> <p>銆銆struct __type_traits</p> <p>銆銆{</p> <p>銆銆public:</p> <p>銆銆typedef __true_type has_trivial_destructor;</p> <p>銆銆……</p> <p>銆銆};</p> <p>銆妯℃澘鏄瘮杈冮珮綰х殑C++緙栫▼鎶宸э紝妯℃澘鐗瑰寲銆佹ā鏉垮亸鐗瑰寲灝辨洿鏄妧宸фу緢寮虹殑涓? 瑗匡紝STL涓殑type_traits鍏呭垎鍊熷姪妯℃澘鐗瑰寲鐨勫姛鑳斤紝瀹炵幇浜嗗湪紼嬪簭緙栬瘧鏈熼氳繃緙栬瘧鍣ㄦ潵鍐沖畾涓烘瘡涓澶勮皟鐢ㄤ嬌鐢ㄥ摢涓壒鍖栫増鏈紝浜庢槸鍦ㄤ笉澧炲姞緙栫▼澶嶆潅 鎬х殑鍓嶆彁涓嬪ぇ澶ф彁楂樹簡紼嬪簭鐨勮繍琛屾晥鐜囥傛洿璇︾粏鐨勫唴瀹瑰彲鍙傝冦奡TL婧愮爜鍓栨瀽銆嬬浜屻佷笁绔犱腑鐨勭浉鍏沖唴瀹廣?/p> <p>銆銆甯︽湁“[]”鐨刵ew鍜宒elete</p> <p>銆銆鎴戜滑緇忓父浼?xì)閫氳繃new鏉ュ姩鎬佸垱寤轟竴涓暟緇勶紝渚嬪錛?/p> <p>銆銆char* s = new char[100];</p> <p>銆銆……</p> <p>銆銆delete s;</p> <p>銆銆涓ユ牸鐨勮錛屼笂榪頒唬鐮佹槸涓嶆紜殑錛屽洜涓烘垜浠湪鍒嗛厤鍐呭瓨鏃朵嬌鐢ㄧ殑鏄痭ew[]錛岃屽茍涓嶆槸綆鍗曠殑new錛屼絾閲婃斁鍐呭瓨鏃跺嵈鐢ㄧ殑鏄痙elete銆傛紜殑鍐欐硶鏄嬌鐢╠elete[]錛?/p> <p>銆銆delete[] s;</p> <p>銆銆浣嗘槸錛屼笂榪伴敊璇殑浠g爜浼間箮涔熻兘緙栬瘧鎵ц錛屽茍涓嶄細(xì)甯︽潵浠涔堥敊璇備簨瀹炰笂錛宯ew涓巒ew[]銆乨elete涓巇elete[]鏄湁鍖哄埆鐨勶紝鐗瑰埆鏄綋鐢ㄦ潵鎿嶄綔澶嶆潅綾誨瀷鏃躲傚亣濡傞拡瀵逛竴涓垜浠嚜瀹氫箟鐨勭被MyClass浣跨敤new[]錛?/p> <p>銆銆MyClass* p = new MyClass[10];</p> <p>銆銆涓婅堪浠g爜鐨勭粨鏋滄槸鍦ㄥ爢涓婂垎閰嶄簡10涓繛緇殑MyClass瀹炰緥錛屽茍涓斿凡緇忓瀹冧滑渚濇璋? 鐢ㄤ簡鏋勯犲嚱鏁幫紝浜庢槸鎴戜滑寰楀埌浜?0涓彲鐢ㄧ殑瀵硅薄錛岃繖涓鐐逛笌Java銆丆#鏈夊尯鍒殑錛孞ava銆丆#涓繖鏍風(fēng)殑緇撴灉鍙槸寰楀埌浜?0涓猲ull銆傛崲鍙ヨ瘽璇達(dá)紝浣跨敤 榪欑鍐欐硶鏃禡yClass蹇呴』鎷ユ湁涓嶅甫鍙傛暟鐨勬瀯閫犲嚱鏁幫紝鍚﹀垯浼?xì)鍙戠幇缂栬瘧鏈熼敊璇Q屽洜涓虹紪璇戝櫒鏃犳硶璋冪敤鏈夊弬鏁扮殑鏋勯犲嚱鏁般?/p> <p>銆銆褰撹繖鏍鋒瀯閫犳垚鍔熷悗錛屾垜浠彲浠ュ啀灝嗗叾閲婃斁錛岄噴鏀炬椂浣跨敤delete[]錛?/p> <p>銆銆delete[] p;</p> <p>銆銆褰撴垜浠鍔ㄦ佸垎閰嶇殑鏁扮粍璋冪敤delete[]鏃訛紝鍏惰涓烘牴鎹墍鐢寵鐨勫彉閲忕被鍨嬩細(xì)鏈夋墍涓? 鍚屻傚鏋減鎸囧悜綆鍗曠被鍨嬶紝濡俰nt銆乧har絳夛紝鍏剁粨鏋滃彧涓嶈繃鏄繖鍧楀唴瀛樿鍥炴敹錛屾鏃朵嬌鐢╠elete[]涓巇elete娌℃湁鍖哄埆錛屼絾濡傛灉p鎸囧悜鐨勬槸澶嶆潅 綾誨瀷錛宒elete[]浼?xì)閽堝鍔ㄦ佸垎閰嶅緱鍒扮殑姣忎釜瀵硅薄璋冪敤鏋愭瀯鍑芥暟錛岀劧鍚庡啀閲婃斁鍐呭瓨銆傚洜姝わ紝濡傛灉鎴戜滑瀵逛笂榪板垎閰嶅緱鍒扮殑p鎸囬拡鐩存帴浣跨敤delete鏉ュ洖鏀訛紝 铏界劧緙栬瘧鏈熶笉鎶ヤ粈涔堥敊璇紙鍥犱負(fù)緙栬瘧鍣ㄦ牴鏈湅涓嶅嚭鏉ヨ繖涓寚閽坧鏄浣曞垎閰嶇殑錛夛紝浣嗗湪榪愯鏃訛紙DEBUG鎯呭喌涓嬶級(jí)浼?xì)缁欏囖Z竴涓狣ebug assertion failed鎻愮ず銆?/p> <p>銆銆鍒拌繖閲岋紝鎴戜滑寰堝鏄撴彁鍑轟竴涓棶棰?-delete[]鏄浣曠煡閬撹涓哄灝戜釜瀵硅薄璋冪敤鏋愭瀯鍑芥暟鐨勶紵瑕佸洖絳旇繖涓棶棰橈紝鎴戜滑鍙互棣栧厛鐪嬩竴鐪媙ew[]鐨勯噸杞姐?/p> <p>銆銆class MyClass</p> <p>銆銆{</p> <p>銆銆int a;</p> <p>銆銆public:</p> <p>銆銆MyClass() { printf("ctorn"); }</p> <p>銆銆~MyClass() { printf("dtorn"); }</p> <p>銆銆};</p> <p>銆銆void* operator new[](size_t size)</p> <p>銆銆{</p> <p>銆銆void* p = operator new(size);</p> <p>銆銆printf("calling new[] with size=%d address=%pn", size, p);</p> <p>銆銆return p;</p> <p>銆銆}</p> <p>銆銆// 涓誨嚱鏁?/p> <p>銆銆MyClass* mc = new MyClass[3];</p> <p>銆銆printf("address of mc=%pn", mc);</p> <p>銆銆delete[] mc;</p> <p>銆銆榪愯姝ゆ浠g爜錛屽緱鍒扮殑緇撴灉涓猴細(xì)錛圴C2005錛?/p> <p>銆銆calling new[] with size=16 address=003A5A58</p> <p>銆銆ctor</p> <p>銆銆ctor</p> <p>銆銆ctor</p> <p>銆銆address of mc=003A5A5C</p> <p>銆銆dtor</p> <p>銆銆dtor</p> <p>銆銆dtor</p> <p>銆銆铏界劧瀵規(guī)瀯閫犲嚱鏁板拰鏋愭瀯鍑芥暟鐨勮皟鐢ㄧ粨鏋滈兘鍦ㄩ鏂欎箣涓紝浣嗘墍鐢寵鐨勫唴瀛樼┖闂村ぇ灝忎互鍙?qiáng)鍦板潃鐨? 鏁板煎嵈鍑虹幇浜嗛棶棰樸傛垜浠殑綾籑yClass鐨勫ぇ灝忔樉鐒舵槸4涓瓧鑺傦紝騫朵笖鐢寵鐨勬暟緇勪腑鏈?涓厓绱狅紝閭d箞搴旇涓鍏辯敵璇?2涓瓧鑺傛墠瀵癸紝浣嗕簨瀹炰笂緋葷粺鍗翠負(fù)鎴戜滑鐢? 璇蜂簡16瀛楄妭錛屽茍涓斿湪operator new[]榪斿悗鎴戜滑寰楀埌鐨勫唴瀛樺湴鍧鏄疄闄呯敵璇峰緱鍒扮殑鍐呭瓨鍦板潃鍊煎姞4鐨勭粨鏋溿備篃灝辨槸璇達(dá)紝褰撲負(fù)澶嶆潅綾誨瀷鍔ㄦ佸垎閰嶆暟緇勬椂錛岀郴緇熻嚜鍔ㄥ湪鏈緇堝緱鍒扮殑鍐呭瓨鍦板潃鍓嶇┖鍑轟簡 4涓瓧鑺傦紝鎴戜滑鏈夌悊鐢辯浉淇¤繖4涓瓧鑺傜殑鍐呭涓庡姩鎬佸垎閰嶆暟緇勭殑闀垮害鏈夊叧銆傞氳繃鍗曟璺熻釜錛屽緢瀹規(guī)槗鍙戠幇榪?涓瓧鑺傚搴旂殑int鍊間負(fù)0x00000003錛屼篃灝辨槸 璇磋褰曠殑鏄垜浠垎閰嶇殑瀵硅薄鐨勪釜鏁般傛敼鍙樹竴涓嬪垎閰嶇殑涓暟鐒跺悗鍐嶆瑙傚療鐨勭粨鏋滆瘉瀹炰簡鎴戠殑鎯蟲硶銆備簬鏄紝鎴戜滑涔熸湁鐞嗙敱璁や負(fù)new[] operator鐨勮涓虹浉褰撲簬涓嬮潰鐨勪吉浠g爜錛?/p> <p>銆銆template </p> <p>銆銆T* New[](int count)</p> <p>銆銆{</p> <p>銆銆int size = sizeof(T) * count + 4;</p> <p>銆銆void* p = T::operator new[](size);</p> <p>銆銆*(int*)p = count;</p> <p>銆銆T* pt = (T*)((int)p + 4);</p> <p>銆銆for(int i = 0; i < count; i++)</p> <p>銆銆new(&pt[i]) T();</p> <p>銆銆return pt;</p> <p>銆銆}</p> <p>銆涓婅堪紺烘剰鎬х殑浠g爜鐪佺暐浜嗗紓甯稿鐞嗙殑閮ㄥ垎錛屽彧鏄睍紺哄綋鎴戜滑瀵逛竴涓鏉傜被鍨嬩嬌鐢╪ew[] 鏉ュ姩鎬佸垎閰嶆暟緇勬椂鍏剁湡姝g殑琛屼負(fù)鏄粈涔堬紝浠庝腑鍙互鐪嬪埌瀹冨垎閰嶄簡姣旈鏈熷4涓瓧鑺傜殑鍐呭瓨騫剁敤瀹冩潵淇濆瓨瀵硅薄鐨勪釜鏁幫紝鐒跺悗瀵逛簬鍚庨潰姣忎竴鍧楃┖闂翠嬌鐢?placement new鏉ヨ皟鐢ㄦ棤鍙傛瀯閫犲嚱鏁幫紝榪欎篃灝辮В閲婁簡涓轟粈涔堣繖縐嶆儏鍐典笅綾誨繀欏繪湁鏃犲弬鏋勯犲嚱鏁幫紝鏈鍚庡啀灝嗛鍦板潃榪斿洖銆傜被浼肩殑錛屾垜浠緢瀹規(guī)槗鍐欏嚭鐩稿簲鐨刣elete[]鐨勫疄 鐜頒唬鐮侊細(xì)</p> <p>銆銆template </p> <p>銆銆void Delete[](T* pt)</p> <p>銆銆{</p> <p>銆銆int count = ((int*)pt)[-1];</p> <p>銆銆for(int i = 0; i < count; i++)</p> <p>銆銆pt[i].~T();</p> <p>銆銆void* p = (void*)((int)pt - 4);</p> <p>銆銆T::operator delete[](p);</p> <p>銆銆}</p> <p>銆銆鐢辨鍙錛屽湪榛樿鎯呭喌涓媜perator new[]涓巓perator new鐨勮涓烘槸鐩稿悓鐨勶紝operator delete[]涓巓perator delete涔熸槸錛屼笉鍚岀殑鏄痭ew operator涓巒ew[] operator銆乨elete operator涓巇elete[] operator銆傚綋鐒?dòng)灱屾垜浠彲浠ユ犚?guī)嵁涓嶅悓鐨勯渶瑕佹潵閫夋嫨閲嶈澆甯︽湁鍜屼笉甯︽湁“[]”鐨刼perator new鍜宒elete錛屼互婊¤凍涓嶅悓鐨勫叿浣撻渶姹傘?/p> <p>銆銆鎶婂墠闈㈢被MyClass鐨勪唬鐮佺◢鍋氫慨鏀?-娉ㄩ噴鎺夋瀽鏋勫嚱鏁幫紝鐒跺悗鍐嶆潵鐪嬬湅紼嬪簭鐨勮緭鍑猴細(xì)</p> <p>銆銆calling new[] with size=12 address=003A5A58</p> <p>銆銆ctor</p> <p>銆銆ctor</p> <p>銆銆ctor</p> <p>銆銆address of mc=003A5A58</p> <p>銆銆榪欎竴嬈★紝new[]鑰佽佸疄瀹炵殑鐢寵浜?2涓瓧鑺傜殑鍐呭瓨錛屽茍涓旂敵璇風(fēng)殑緇撴灉涓巒ew[] operator榪斿洖鐨勭粨鏋滀篃鏄浉鍚岀殑錛岀湅鏉ワ紝鏄惁鍦ㄥ墠闈㈡坊鍔?涓瓧鑺傦紝鍙彇鍐充簬榪欎釜綾繪湁娌℃湁鏋愭瀯鍑芥暟錛屽綋鐒?dòng)灱寴q欎箞璇村茍涓嶇‘鍒囷紝姝g‘鐨勮娉曟槸榪欎釜綾繪槸鍚﹂渶 瑕佽皟鐢ㄦ瀯閫犲嚱鏁幫紝鍥犱負(fù)濡備笅涓ょ鎯呭喌涓嬭櫧鐒惰繖涓被娌″0鏄庢瀽鏋勫嚱鏁幫紝浣嗚繕鏄鐢寵浜?涓瓧鑺傦細(xì)涓鏄繖涓被涓嫢鏈夐渶瑕佽皟鐢ㄦ瀽鏋勫嚱鏁扮殑鎴愬憳錛屼簩鏄繖涓被緇ф壙鑷渶瑕? 璋冪敤鏋愭瀯鍑芥暟鐨勭被銆備簬鏄紝鎴戜滑鍙互閫掑綊鐨勫畾涔?#8220;闇瑕佽皟鐢ㄦ瀽鏋勫嚱鏁扮殑綾?#8221;涓轟互涓嬩笁縐嶆儏鍐典箣涓錛?/p> <p>銆銆1 鏄懼紡鐨勫0鏄庝簡鏋愭瀯鍑芥暟鐨?/p> <p>銆銆2 鎷ユ湁闇瑕佽皟鐢ㄦ瀽鏋勫嚱鏁扮殑綾葷殑鎴愬憳鐨?/p> <p>銆銆3 緇ф壙鑷渶瑕佽皟鐢ㄦ瀽鏋勫嚱鏁扮殑綾葷殑</p> <p>銆銆綾諱技鐨勶紝鍔ㄦ佺敵璇風(fēng)畝鍗曠被鍨嬬殑鏁扮粍鏃訛紝涔熶笉浼?xì)澶氱攲櫙?涓瓧鑺傘備簬鏄湪榪欎袱縐嶆儏鍐典笅錛岄噴鏀懼唴瀛樻椂浣跨敤delete鎴杁elete[]閮藉彲浠ワ紝浣嗕負(fù)鍏繪垚鑹ソ鐨勪範(fàn)鎯紝鎴戜滑榪樻槸搴旇娉ㄦ剰鍙鏄姩鎬佸垎閰嶇殑鏁扮粍錛岄噴鏀炬椂灝變嬌鐢╠elete[]銆?/p> <p>銆銆閲婃斁鍐呭瓨鏃跺浣曠煡閬撻暱搴?/p> <p>銆銆浣嗚繖鍚屾椂鍙堝甫鏉ヤ簡鏂伴棶棰橈紝鏃㈢劧鐢寵鏃犻渶璋冪敤鏋愭瀯鍑芥暟鐨勭被鎴栫畝鍗曠被鍨嬬殑鏁扮粍鏃跺茍娌℃湁璁板綍 涓暟淇℃伅錛岄偅涔坥perator delete錛屾垨鏇寸洿鎺ョ殑璇磃ree()鏄浣曟潵鍥炴敹榪欏潡鍐呭瓨鐨勫憿錛熻繖灝辮鐮旂┒malloc()榪斿洖鐨勫唴瀛樼殑緇撴瀯浜嗐備笌new[]綾諱技鐨勬槸錛屽疄闄呬笂鍦? malloc()鐢寵鍐呭瓨鏃朵篃澶氱敵璇蜂簡鏁頒釜瀛楄妭鐨勫唴瀹癸紝鍙笉榪囪繖涓庢墍鐢寵鐨勫彉閲忕殑綾誨瀷娌℃湁浠諱綍鍏崇郴錛屾垜浠粠璋冪敤malloc鏃舵墍浼犲叆鐨勫弬鏁頒篃鍙互鐞嗚В榪欎竴 鐐?-瀹冨彧鎺ユ敹浜嗚鐢寵鐨勫唴瀛樼殑闀垮害錛屽茍涓嶅叧緋昏繖鍧楀唴瀛樼敤鏉ヤ繚瀛樹粈涔堢被鍨嬨備笅闈㈣繍琛岃繖鏍蜂竴孌典唬鐮佸仛涓疄楠岋細(xì)</p> <p>銆銆char *p = 0;</p> <p>銆銆for(int i = 0; i < 40; i += 4)</p> <p>銆銆{</p> <p>銆銆char* s = new char[i];</p> <p>銆銆printf("alloc %2d bytes, address=%p distance=%dn", i, s, s - p);</p> <p>銆銆p = s;</p> <p>銆銆}</p> <p>銆銆鎴戜滑鐩存帴鏉ョ湅VC2005涓婻elease鐗堟湰鐨勮繍琛岀粨鏋滐紝DEBUG鐗堝洜鍖呭惈浜嗚緝澶氱殑璋冭瘯淇℃伅錛岃繖閲屽氨涓嶅垎鏋愪簡錛?/p> <p>銆銆alloc 0 bytes, address=003A36F0 distance=3815152</p> <p>銆銆alloc 4 bytes, address=003A3700 distance=16</p> <p>銆銆alloc 8 bytes, address=003A3710 distance=16</p> <p>銆銆alloc 12 bytes, address=003A3720 distance=16</p> <p>銆銆alloc 16 bytes, address=003A3738 distance=24</p> <p>銆銆alloc 20 bytes, address=003A84C0 distance=19848</p> <p>銆銆alloc 24 bytes, address=003A84E0 distance=32</p> <p>銆銆alloc 28 bytes, address=003A8500 distance=32</p> <p>銆銆alloc 32 bytes, address=003A8528 distance=40</p> <p>銆銆alloc 36 bytes, address=003A8550 distance=40</p> <p>銆銆姣忎竴嬈″垎閰嶇殑瀛楄妭鏁伴兘姣斾笂涓嬈″4錛宒istance鍊艱褰曠潃涓庝笂涓嬈″垎閰嶇殑宸鹼紝絎? 涓涓樊鍊兼病鏈夊疄闄呮剰涔夛紝涓棿鏈変竴涓緝澶х殑宸鹼紝鍙兘鏄繖鍧楀唴瀛樺凡緇忚鍒嗛厤浜嗭紝浜庢槸涔熷拷鐣ュ畠銆傜粨鏋滀腑鏈灝忕殑宸間負(fù)16瀛楄妭錛岀洿鍒版垜浠敵璇?6瀛楄妭鏃訛紝榪欎釜宸? 鍊煎彉鎴愪簡24錛屽悗闈篃鏈夌被浼肩殑瑙勫緥錛岄偅涔堟垜浠彲浠ヨ涓虹敵璇鋒墍寰楃殑鍐呭瓨緇撴瀯鏄涓嬭繖鏍風(fēng)殑錛?/p> <p align="center"> </p> <p align="center"><a ><img alt="" src="http://images.e800.com.cn/articles/201005/2010050614055158210.jpg" border="0" hspace="0" /></a></p> <p>銆銆浠庡浘涓笉闅劇湅鍑猴紝褰撴垜浠鍒嗛厤涓孌靛唴瀛樻椂錛屾墍寰楃殑鍐呭瓨鍦板潃鍜屼笂涓嬈$殑灝懼湴鍧鑷沖皯瑕佺浉璺?涓瓧鑺傦紙鍦―EBUG鐗堜腑榪樿鏇村錛夛紝閭d箞鎴戜滑鍙互鐚滄兂錛岃繖8涓瓧鑺備腑搴旇璁板綍鐫涓庤繖孌墊墍鍒嗛厤鐨勫唴瀛樻湁鍏崇殑淇℃伅銆傝瀵熻繖8涓妭鍐呯殑鍐呭錛屽緱鍒扮粨鏋滃涓嬶細(xì)</p> <p align="center"> </p> <p align="center"><a ><img alt="" src="http://images.e800.com.cn/articles/201005/2010050614060958130.jpg" border="0" hspace="0" /></a></p> <p>銆銆鍥句腑鍙寵竟涓烘瘡嬈″垎閰嶆墍寰楃殑鍦板潃涔嬪墠8涓瓧鑺傜殑鍐呭鐨?6榪涘埗琛ㄧず錛屼粠鍥句腑綰㈢嚎鎵琛ㄧず鍙? 浠ョ湅鍒幫紝榪?涓瓧鑺備腑鐨勭涓涓瓧鑺備箻浠?鍗沖緱鍒扮浉涓翠袱嬈″垎閰嶆椂鐨勮窛紱伙紝緇忚繃璇曢獙涓嬈℃у垎閰嶆洿澶х殑闀垮害鍙煡錛岀浜屼釜瀛楄妭涔熸槸榪欎釜鎰忎箟錛屽茍涓斾唬琛ㄩ珮8浣嶏紝涔熷氨 璇村墠闈㈢┖鐨勮繖8涓瓧鑺備腑鐨勫墠涓や釜瀛楄妭璁板綍浜嗕竴嬈″垎閰嶅唴瀛樼殑闀垮害淇℃伅錛屽悗闈㈢殑鍏釜瀛楄妭鍙兘涓庣┖闂插唴瀛橀摼琛ㄧ殑淇℃伅鏈夊叧錛屽湪緲昏瘧鍐呭瓨鏃剁敤鏉ユ彁渚涘繀瑕佺殑淇℃伅銆傝繖灝? 瑙g瓟浜嗗墠闈㈡彁鍑虹殑闂錛屽師鏉/C++鍦ㄥ垎閰嶅唴瀛樻椂宸茬粡璁板綍浜嗚凍澶熷厖鍒嗙殑淇℃伅鐢ㄤ簬鍥炴敹鍐呭瓨錛屽彧涓嶈繃鎴戜滑騫沖父涓嶅叧蹇冨畠緗簡銆?/p></div><img src ="http://www.shnenglu.com/liangairan/aggbug/147571.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.shnenglu.com/liangairan/" target="_blank">欖旈铻寵瀭</a> 2011-05-29 11:06 <a href="http://www.shnenglu.com/liangairan/articles/147571.html#Feedback" target="_blank" style="text-decoration:none;">鍙戣〃璇勮</a></div>]]></description></item></channel></rss> <footer> <div class="friendship-link"> <p>感谢您访问我们的网站,您可能还对以下资源感兴趣:</p> <a href="http://www.shnenglu.com/" title="精品视频久久久久">精品视频久久久久</a> <div class="friend-links"> </div> </div> </footer> <a href="http://www.594n.cn" target="_blank">狠狠色丁香婷婷久久综合</a>| <a href="http://www.ogus.cn" target="_blank">99久久人人爽亚洲精品美女</a>| <a href="http://www.hjj9588.cn" target="_blank">亚洲&#228;v永久无码精品天堂久久 </a>| <a href="http://www.gbyu.cn" target="_blank">亚洲伊人久久综合影院</a>| <a href="http://www.cnmere.cn" target="_blank">三级韩国一区久久二区综合</a>| <a href="http://www.beibeiyou.cn" target="_blank">久久无码专区国产精品发布</a>| <a href="http://www.jianhua365.cn" target="_blank">久久精品天天中文字幕人妻 </a>| <a href="http://www.qiaoyishiqy6.com.cn" target="_blank">久久91这里精品国产2020</a>| <a href="http://www.bulaozhen.cn" target="_blank">日韩亚洲国产综合久久久</a>| <a href="http://www.madouwang.cn" target="_blank">色欲久久久天天天综合网</a>| <a href="http://www.ciidc.org.cn" target="_blank">aaa级精品久久久国产片</a>| <a href="http://www.tyo8.cn" target="_blank">久久亚洲欧洲国产综合</a>| <a href="http://www.gzmwx.cn" target="_blank">久久99国内精品自在现线</a>| <a href="http://www.hnyongsheng.cn" target="_blank">国产A级毛片久久久精品毛片</a>| <a href="http://www.txt115.cn" target="_blank">久久人妻AV中文字幕</a>| <a href="http://www.yzlxdr.cn" target="_blank">国产亚洲精午夜久久久久久</a>| <a href="http://www.5billion.com.cn" target="_blank">亚洲中文精品久久久久久不卡</a>| <a href="http://www.epfx.cn" target="_blank">国产精品无码久久四虎</a>| <a href="http://www.lcvy.cn" target="_blank">久久精品天天中文字幕人妻</a>| <a href="http://www.desktx.cn" target="_blank">国产精品久久久久久久人人看</a>| <a href="http://www.99341.cn" target="_blank">91亚洲国产成人久久精品网址</a>| <a href="http://www.yzx777.cn" target="_blank">亚洲伊人久久大香线蕉综合图片</a>| <a href="http://www.tvjay.cn" target="_blank">久久久久国产</a>| <a href="http://www.fygscn.cn" target="_blank">999久久久国产精品</a>| <a href="http://www.abcvi.cn" target="_blank">国内精品人妻无码久久久影院</a>| <a href="http://www.dafa888da.cn" target="_blank">一本久久精品一区二区</a>| <a href="http://www.kexuncms.cn" target="_blank">精品国产乱码久久久久久浪潮</a>| <a href="http://www.hkgsjt.cn" target="_blank">国产成人久久精品一区二区三区 </a>| <a href="http://www.gnkk.net.cn" target="_blank">久久天天躁狠狠躁夜夜躁2O2O </a>| <a href="http://www.rootwiremesh.cn" target="_blank">国产成人精品免费久久久久</a>| <a href="http://www.hlccbxw.cn" target="_blank">精品久久久一二三区</a>| <a href="http://www.snaiye.cn" target="_blank">久久久久国产日韩精品网站</a>| <a href="http://www.qojm.cn" target="_blank">国产一区二区三精品久久久无广告</a>| <a href="http://www.luckpai.cn" target="_blank">久久综合狠狠综合久久综合88 </a>| <a href="http://www.mmmj.net.cn" target="_blank">2020最新久久久视精品爱</a>| <a href="http://www.hzust.cn" target="_blank">中文字幕人妻色偷偷久久</a>| <a href="http://www.dmzh.net.cn" target="_blank">99久久这里只精品国产免费</a>| <a href="http://www.gmxd.net.cn" target="_blank">婷婷久久综合九色综合九七</a>| <a href="http://www.zmlxs.cn" target="_blank">伊人热热久久原色播放www</a>| <a href="http://www.peizis.cn" target="_blank">久久夜色精品国产www</a>| <a href="http://www.ireboot.cn" target="_blank">午夜精品久久影院蜜桃</a>| <script> (function(){ var bp = document.createElement('script'); var curProtocol = window.location.protocol.split(':')[0]; if (curProtocol === 'https') { bp.src = 'https://zz.bdstatic.com/linksubmit/push.js'; } else { bp.src = 'http://push.zhanzhang.baidu.com/push.js'; } var s = document.getElementsByTagName("script")[0]; s.parentNode.insertBefore(bp, s); })(); </script> </body>