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http://www.shnenglu.com/luke/zh-cnFri, 09 May 2025 17:53:48 GMTFri, 09 May 2025 17:53:48 GMT60- c++鏍囧噯搴撲腑endl鐨勫疄鐜?/title>http://www.shnenglu.com/luke/archive/2009/04/01/78572.html鍗㈠厠鍗㈠厠Wed, 01 Apr 2009 07:15:00 GMThttp://www.shnenglu.com/luke/archive/2009/04/01/78572.htmlhttp://www.shnenglu.com/luke/comments/78572.htmlhttp://www.shnenglu.com/luke/archive/2009/04/01/78572.html#Feedback0http://www.shnenglu.com/luke/comments/commentRss/78572.htmlhttp://www.shnenglu.com/luke/services/trackbacks/78572.htmlhttp://www.sgi.com/tech/stl/)瀹炵幇,
浜庢槸鎭嶇劧澶ф偀錛屽鍏跺疄鐜拌呯湡鏄暚浣┿?br>
鍦ㄦ枃浠禣stream涓璫lass basic_ostream 鏈夊涓嬫垚鍛樺嚱鏁幫細
basic_ostream& operator<< (basic_ostream& (*__f)(basic_ostream&))
{ return __f(*this); }
basic_ostream& operator<< (_Basic_ios& (*__f)(_Basic_ios&))
{ __f(*this); return *this; }
basic_ostream& operator<< (ios_base& (*__f)(ios_base&))
{ __f(*this); return *this; }
鐒跺悗鏈夊涓嬪叏灞鍑芥暟錛?br>template <class _CharT, class _Traits>
inline basic_ostream<_CharT, _Traits>&
endl(basic_ostream<_CharT, _Traits>& __os) {
__os.put(__os.widen('\n'));
__os.flush();
return __os;
}
鍙鍘熸潵鎴戜滑緇忓父浣跨敤鐨刢out<<.....<<endl涓殑endl绔熺劧鏄竴涓嚱鏁版寚閽堬紝鐢辨鎴戜滑榪樺彲浠ユ壘鍒板涓嬪畾涔夛細
// basefield manipulators, section 27.4.5.3
inline ios_base& dec(ios_base& __s)
{ __s.setf(ios_base::dec, ios_base::basefield); return __s; }
inline ios_base& hex(ios_base& __s)
{ __s.setf(ios_base::hex, ios_base::basefield); return __s; }
inline ios_base& oct(ios_base& __s)
{ __s.setf(ios_base::oct, ios_base::basefield); return __s; }
鍘熸潵榪欎簺鎴戜滑緇忓父瑙佸埌鐨凜++嫻佽緭鍑烘牸寮忕灞呯劧閮芥槸涓浜涘嚱鏁幫紝閮芥槸閫氳繃閲嶈澆<<鎿嶄綔絎︽潵瀹炵幇鐨勩?br>

]]> - boost 涓殑noncopyablehttp://www.shnenglu.com/luke/archive/2009/03/13/76411.html鍗㈠厠鍗㈠厠Fri, 13 Mar 2009 03:00:00 GMThttp://www.shnenglu.com/luke/archive/2009/03/13/76411.htmlhttp://www.shnenglu.com/luke/comments/76411.htmlhttp://www.shnenglu.com/luke/archive/2009/03/13/76411.html#Feedback0http://www.shnenglu.com/luke/comments/commentRss/76411.htmlhttp://www.shnenglu.com/luke/services/trackbacks/76411.htmlclass noncopyable
{
protected:
noncopyable() {}
~noncopyable() {}
private: // emphasize the following members are private
noncopyable( const noncopyable& );
const noncopyable& operator=( const noncopyable& );
};
榪欓噷鐨勮璁℃濇兂鏄瀛愮被緇ф壙錛屼絾鏄樆姝㈠瓙綾昏皟鐢ㄨ祴鍊煎拰copy鏋勯犲嚱鏁幫紝鏈変粈涔堢敤鍛紵
鍐欎唬鐮佺殑鏃跺欐垜緇忓父鍠滄鐢╯ingleton妯″紡錛屾瘮濡傞偅浜涘伐鍘傜被錛岀鐞嗚呯被涔嬬被鐨勶紝浣嗘槸鍐欒繖浜?br>singleton鐨勬椂鍊欏綋鐒舵槸甯屾湜鍏ㄥ眬鍙湁涓涓紝鑰屼笖涓嶅笇鏈涘埆浜哄湪鐢ㄧ殑鏃跺欏張鑷繁鍒涢犱竴涓紝寰寰
灝辮姣忓啓涓涓猻ingleton綾誨氨瑕佸湪綾葷殑declaration涓妸瀹冧滑鐨勬瀯閫犲嚱鏁幫紝璧嬪煎嚱鏁幫紝鏋愭瀯鍑芥暟錛宑opy鏋勯犲嚱鏁伴殣钘忓埌
private鎴栬卲rotected涔嬩腑錛岃繖鏍風湡鐨勫緢绱?br> 鐜板湪濂戒簡錛屽彧瑕佽榪欎簺singleton鐩存帴緇ф壙noncopyable灝眔k浜嗐傝繖鏍瘋嚦灝戝彲浠ヤ笉鐢ㄥ鍐欒祴鍊煎拰copy鏋勯?br>鍑芥暟浜嗭紱鏋勯犲拰鏋愭瀯鍑芥暟鐪嬫儏鍐佃屽畾浜嗐?br>
class noncopyable鐨勫熀鏈濇兂鏄妸鏋勯犲嚱鏁板拰鏋愭瀯鍑芥暟璁劇疆protected鏉冮檺錛岃繖鏍峰瓙綾誨彲浠ヨ皟鐢紝浣嗘槸澶栭潰鐨勭被涓嶈兘璋冪敤錛?br>閭d箞褰撳瓙綾婚渶瑕佸畾涔夋瀯閫犲嚱鏁扮殑鏃跺欎笉鑷充簬閫氫笉榪囩紪璇戙備絾鏄渶鍏抽敭鐨勬槸noncopyable鎶奵opy鏋勯犲嚱鏁板拰copy璧嬪煎嚱鏁板仛鎴愪簡
private錛岃繖灝辨剰鍛崇潃闄ら潪瀛愮被瀹氫箟鑷繁鐨刢opy鏋勯犲拰璧嬪煎嚱鏁幫紝鍚﹀垯鍦ㄥ瓙綾繪病鏈夊畾涔夌殑鎯呭喌涓嬶紝澶栭潰鐨勮皟鐢ㄨ呮槸涓嶈兘澶熼氳繃
璧嬪煎拰copy鏋勯犵瓑鎵嬫鏉ヤ駭鐢熶竴涓柊鐨勫瓙綾誨璞$殑銆備婦涓畝鍗曠殑渚嬪瓙錛?br>class Test 錛?public noncopyable
{
};
void main()
{
Test a,c;
Test b(a); ///<------錛?錛?error
c = a; ///<------(2) error
}
濡傛灉Test綾繪病鏈夌戶鎵?noncopyable,閭d箞錛?錛夊拰錛?錛夐兘鍙互閫氳繃緙栬瘧錛屼絾鏄竴鏃est緇ф壙浜唍oncopyable錛屽垯(1)鍜岋紙2錛夐兘閫氫笉榪?br>緙栬瘧錛屼粠鑰屽彲浠ラ槻姝㈣皟鐢ㄨ呭啓涓浜涢敊璇殑浠g爜錛岃繖涓嶆鏄垜浠仛singleton瀵硅薄鎵闇瑕佺殑鍚楋紵

]]> - service 鍦╲ista鍜寃indows2008涓嬩笉宸ヤ綔http://www.shnenglu.com/luke/archive/2008/10/13/63907.html鍗㈠厠鍗㈠厠Mon, 13 Oct 2008 09:06:00 GMThttp://www.shnenglu.com/luke/archive/2008/10/13/63907.htmlhttp://www.shnenglu.com/luke/comments/63907.htmlhttp://www.shnenglu.com/luke/archive/2008/10/13/63907.html#Feedback0http://www.shnenglu.com/luke/comments/commentRss/63907.htmlhttp://www.shnenglu.com/luke/services/trackbacks/63907.html 鍋氫簡濡備笅鍑犱釜嫻嬭瘯錛?br> 錛?錛夋妸ServiceMain寮濮嬮儴鍒嗗仛鎴愪竴涓猚onsole紼嬪簭錛岃繍琛孫K錛岃繖璇存槑涓昏閮ㄥ垎浠g爜閫昏緫娌℃湁闂銆?br> 錛?錛夊幓鎺塖erviceMain()涓殑澶ч儴鍒嗗姛鑳戒唬鐮侊紝鍋氫竴涓畝鍗曠殑service錛岃繍琛孫K錛岃繖璇存槑鍘熸潵鐨剆ervice瀹夎鍜屽惎鍔ㄩ儴鍒嗕唬鐮佷篃娌℃湁闂銆?br> 錛?錛夊垎姝ユ帓闄ゅ悇涓猟ll銆?br> 鏈鍚庡彂鐜板鑷存棤娉曞惎鍔ㄧ殑緗瓉紲擱灞呯劧鏄痩ibmysql.dll錛屾垜濡傛灉鍦ㄧ▼搴忎腑灞忚斀鎺夋墍鏈塵ysql鐨勮皟鐢紝絳変簬紼嬪簭鍚姩鐨勬椂鍊欎笉鍔犺澆libmysql.dll,閭d箞灝卞彲浠ラ『鍒╁惎鍔紝鎺ョ潃鏇存崲鍒版渶鏂扮殑libmysql.dll錛堢増鏈?.0.67錛夛紝浠嶇劧鏄惎鍔ㄤ笉鎴愬姛錛涘悗鏉ュ垏鎹㈠埌涓涓悓浜嬬殑鑰佺増鏈琹ibmysql.dll錛屽眳鐒跺彲浠ュ惎鍔ㄦ垚鍔熴?.0.67鐗堟湰libmysql.dll 錛坥pt錛夌殑澶у皬鏄?M澶氾紝鑰屾垜鍚屼簨鐨勯偅涓猯ibmysql.dll鎵?M澶氾紝闅鵑亾浠栫殑鐗堟湰鏄痬ysql4.x ?
絀剁珶鏄粈涔堝師鍥犲鑷磋繖涓棶棰樼殑錛?br>

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