锘??xml version="1.0" encoding="utf-8" standalone="yes"?>国产日韩欧美在线播放,亚洲国产高清在线观看视频,欧美视频日韩视频http://www.shnenglu.com/Husiwa/category/17900.htmlzh-cnWed, 12 Oct 2011 21:53:35 GMTWed, 12 Oct 2011 21:53:35 GMT60EFFECTIVE-STL-10-12http://www.shnenglu.com/Husiwa/archive/2011/10/12/158147.htmlIT鑿滈笩IT鑿滈笩Wed, 12 Oct 2011 09:51:00 GMThttp://www.shnenglu.com/Husiwa/archive/2011/10/12/158147.htmlhttp://www.shnenglu.com/Husiwa/comments/158147.htmlhttp://www.shnenglu.com/Husiwa/archive/2011/10/12/158147.html#Feedback0http://www.shnenglu.com/Husiwa/comments/commentRss/158147.htmlhttp://www.shnenglu.com/Husiwa/services/trackbacks/158147.html鏉℃10 鍜?11涓嶅お鎳傦紝浠ュ悗鍐嶇湅鐪?br />

鏉℃10錛屾敞鎰忓垎閰嶅櫒鐨勫崗瀹氬拰綰︽潫
濡傛灉瑕佽嚜瀹氫箟鍒嗛厤鍣?br />*鎶婁綘鐨勫垎閰嶅櫒鍋氭垚涓涓ā鏉匡紝甯︽湁妯℃澘鍙傛暟T錛屼唬琛ㄤ綘瑕佸垎閰嶇殑鍐呭瓨鐨勫璞$被鍨?br />*鎻愪緵pointer鍜宺eference鐨則ypedef錛屼絾鎬繪槸璁﹑ointer鏄疶* reference鏄疶&
*閫氬父錛屽垎閰嶅櫒涓嶈兘鏈夐潪闈欐佺殑鏁版嵁鎴愬憳
*璁板緱搴旇浼犵粰鍒嗛厤鍣ㄧ殑allocate鎴愬憳鍑芥暟闇瑕佸垎閰嶇殑瀵硅薄涓暟鑰屼笉鏄瓧鑺傛暟錛屼篃搴旇璁板緱榪欎簺鍑芥暟榪斿洖T*鎸囬拡錛屽嵆鏃惰繕娌℃湁T瀵硅薄琚瀯閫?br />*涓瀹氳鎻愪緵鏍囧噯瀹瑰櫒渚濊禆鐨勫唴宓宺ebind妯℃澘

鏉℃12錛屽STL瀹瑰櫒綰跨▼瀹夊叏鎬х殑鏈熷緟鐜板疄涓浜?/p>

template<typename Container>
class Lock
{
public:
 Lock(
const Container container): c( containner ){
  getMutexFor( c );
 }

 
~Lock(){
  releaseMutexFor( c );
 }

private:
const Container& c;

}
;

vector
<int> v;
{
 Lock
< vect< int > > lock( v );
 vector
<int>::iterator first5( find(v.begin() v.end(), 5));
 
if( first5 != v.end()){
  
*first5 = 0;
 }

}


 



]]>
EFFECTIVE-STL9http://www.shnenglu.com/Husiwa/archive/2011/10/11/158063.htmlIT鑿滈笩IT鑿滈笩Tue, 11 Oct 2011 08:24:00 GMThttp://www.shnenglu.com/Husiwa/archive/2011/10/11/158063.htmlhttp://www.shnenglu.com/Husiwa/comments/158063.htmlhttp://www.shnenglu.com/Husiwa/archive/2011/10/11/158063.html#Feedback0http://www.shnenglu.com/Husiwa/comments/commentRss/158063.htmlhttp://www.shnenglu.com/Husiwa/services/trackbacks/158063.html*鍦ㄤ竴涓爣鍑哠TL瀹瑰櫒涓幓鎺夊間負1963鐨勫璞★紝鑻ユ槸涓涓繛緇唴瀛樺鍣紝鏈濂界殑鏂規硶鏄痚rase-remove
c.erase ( remove( c.begin(), c.end(), 1963 ), c.end錛堬級 錛夛紱//褰揅鏃秜ector,string ,deque鏃訛紝榪欐槸涓澶勭壒瀹氬煎緱鍏冪礌鐨勬渶浣蟲柟娉?br />*褰揅鏄爣鍑嗗叧鑱斿鍣ㄧ殑鏃跺?map, set)浣跨敤浠諱綍鍙仛remove鐨勪笢瑗塊兘鏄畬鍏ㄩ敊璇殑
鑰屽簲璇ョ洿鎺ラ噰鐢╟.erase(1963)瀵規暟鐨勯珮鏁堟椂闂?br />*浣嗗鏋滄搷浣滄槸浠嶤涓櫎鍘繪瘡涓湁鐗瑰畾鍊肩殑鐗╀綋
bool bandValue(int x)
瀵逛簬搴忓垪瀹瑰櫒錛坴ector, string,deque,list)鎴戜滑瑕佸仛鐨勫彧鏄妸姣忎釜remove鏇挎崲涓簉emove_if鐒跺悗灝監K浜?br />c.erase( remove_if(c.begin(), c.end(), badValue), c.end())//vector,string,deque
c.remove_if( badValue ) //list
瀵逛簬鏍囧噯鍏寵仈瀹瑰櫒錛?br />AssocContainner<int> c;
for(AssoContainer<int>::iterator i = c.begin();
i!= c.end(); )
{
 if(badValue(*i)) c.erase(i++);
 else ++i;
}


]]>
EFFECTIVE-STL5-7http://www.shnenglu.com/Husiwa/archive/2011/10/11/158057.htmlIT鑿滈笩IT鑿滈笩Tue, 11 Oct 2011 07:03:00 GMThttp://www.shnenglu.com/Husiwa/archive/2011/10/11/158057.htmlhttp://www.shnenglu.com/Husiwa/comments/158057.htmlhttp://www.shnenglu.com/Husiwa/archive/2011/10/11/158057.html#Feedback0http://www.shnenglu.com/Husiwa/comments/commentRss/158057.htmlhttp://www.shnenglu.com/Husiwa/services/trackbacks/158057.html鏉℃浜旓紝灝介噺浣跨敤鍖洪棿鎴愬憳鍑芥暟浠f浛浠栦滑鐨勫崟鍏冪礌鍏勫紵
*瀵逛簬鎵鏈夋爣鍑嗗簭鍒楀鍣?vector錛?string, deque, 鍜宭ist)閮芥湁鏁堬紝鏃犺浣曟椂浣犲繀欏誨畬鍏ㄦ浛浠d竴涓鍣ㄧ殑鍐呭錛屼綘灝卞簲璇ユ兂鍒拌祴鍊?br />*insert錛屾瘡嬈¢兘蹇呴』縐誨姩涓烘柊鍏冪礌鑵懼嚭絀洪棿
*搴忓垪瀹瑰櫒erase鏃惰繑鍥炶凱浠e櫒錛岃屽叧鑱斿鍣ㄨ繑鍥炵┖

鏉℃鍏紝璀︽儠C++鏈浠や漢鎭兼掔殑瑙f瀽
int g( double pf() ) pf鍏跺疄鏄竴涓寚閽?br />int g( double() );鍚屼笂錛屽嚱鏁板悕鐪佺暐
int g( double x) == int g( double (x) )

鏉℃涓冿紝 褰撴椂鐢╪ew寰楁寚閽堢殑瀹瑰櫒鏃訛紝璁板緱鍦ㄩ攢姣佸鍣ㄥ墠delete閭d簺鎸囬拡
*榪欐牱鐨勪唬鐮侀犳垚鍐呭瓨娉勯湶

void doSomething()
{
 vector
<Widget*> vwp;
 
for(int i =0 ; i < SOME_MAGIC_NUMBER; ++i)
 
{
  vwp.push_back(
new Widget);
 }

 
//浣跨敤瀹屾瘯鐨勬椂鍊欙紝vwp鍐呯殑Widget瀵硅薄娌℃湁閲婃斁
}



鏈綆鍗曠殑瀹炵幇鏂規硶鏄?/p>

void doSomething()
{
 
for(vector<Widget*>::iterator i = vwp.begin(); != vwp.end(); ++i)
 
{
  delete 
*i;
 }

}



榪欐牱鐨勯棶棰樻槸for寰幆浠g爜澶氫綑for_each錛屼絾娌℃湁浣跨敤for_each綆鍗曟槑浜?br />鍙︿竴涓棶棰樻槸榪欐浠g爜涓嶆槸寮傚父瀹夊叏鐨?/p>

綆媧佷笉鑰冭檻寮傚父鐨勬柟娉?/p>

struct DeleteObject{
 template
<typename T>
 
void operator()(const T* ptr) const
 
{
  delete prt;
 }

}
;
void doSomething()
{
 deque
<SpecialString*> dssp;
 for_each( dssp.begin(), dssp.end(), DeleteObject());
}


void doSomething()
{
 typedef boost::shar_ptr
<Widget> SPW;
 vector
<SPW> vwp;
 
for(int i = 0; i <SOME_MAGIC_NUMBER; ++i)
 
{
  vwp.push_back( SPW(
new Widget));
 }

}



 



]]>
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