濡傛灉鎮(zhèn)ㄥ疄鍦ㄦ槸鏈夌偣鍙椾笉浜?jiǎn)鎴栬呬綘涓嶈兘紜畾瀹瑰櫒涓┒绔熸斁鐨勬槸浠涔堣屼笖浣犳効鎰忎嬌鐢ㄤ竴涓嬪噯鏍囧噯搴?灝卞彲浠ヨ冭檻boost搴撶殑mem_fn.boost::mem_fn涔熶笉鏄緢鐗瑰埆鐨刡oost鎴愬憳.浣跨敤boost::mem_fn濂藉錛氫笉鐢ㄥ叧蹇?jī)瀹瑰櫒涓槸T榪樻槸T*鐢氳嚦鏄痓oost::share_ptr<T>,鍙﹀涔頒竴璧犱竴fn姣攆un鏇村ソ鍚竴鐐?涓嬮潰鎶勫綍boost鐨勫府鍔╀唬鐮佸氨寰堣鏄庨棶棰樹簡(jiǎn).
struct X
{
void f();
};
void g(std::vector<X> & v)
{
std::for_each(v.begin(), v.end(), boost::mem_fn(&X::f));
};
void h(std::vector<X *> const & v)
{
std::for_each(v.begin(), v.end(), boost::mem_fn(&X::f));
};
void k(std::vector<boost::shared_ptr<X> > const & v)
{
std::for_each(v.begin(), v.end(), boost::mem_fn(&X::f));
};
{
void f();
};
void g(std::vector<X> & v)
{
std::for_each(v.begin(), v.end(), boost::mem_fn(&X::f));
};
void h(std::vector<X *> const & v)
{
std::for_each(v.begin(), v.end(), boost::mem_fn(&X::f));
};
void k(std::vector<boost::shared_ptr<X> > const & v)
{
std::for_each(v.begin(), v.end(), boost::mem_fn(&X::f));
};
]]>
- 瀹氫箟涓涓猣ormat綾伙紝騫舵寚瀹氬瓧絎︿覆鐨勫悇寮?鐩稿綋浜巔rintf鐨勭涓涓弬鏁?
- boost::format fs("Test String:%s,%d");
- 閫氳繃%榪愮畻絎﹀甫鍏ュ弬鏁?%s琛ㄧず瀛楃涓?%d琛ㄧず鏁存暟,涓巔rintf闈炲父綾諱技)
- fs%"string"%121;
- 閫氳繃<<杈撳嚭(format閲嶈澆浜?lt;<榪愮畻絎?鎴栭氳繃str()鍑芥暟鑾峰彇緇撴灉
- std::cout<<fs; //杈撳嚭Test String:string,121
- std::string result = fs.str();
- str() 鑾峰彇緇撴灉瀛楃涓?/li>
- clear() 娓呯┖宸茬粡甯﹀叆鐨勫弬鏁?/li>
- parse(str::string s)娓呯┖宸茬粡甯﹀叆鐨勫弬鏁?騫跺皢s鍔犲湪鍚勫紡瀛楃涓蹭箣鍚?/li>
姝ゅ浠呬粎鎶涚爾寮曠帀錛屽瑕佷嬌鐢ㄨ鍙傝?http://www.boost.org/libs/format/doc/format.html
]]>
class Test
{
聽 聽 public :
聽 聽 聽聽 T t;
聽 聽 .....
};
闅忕潃妯℃澘搴旂敤鐨勬帹騫匡紝澶у鍙戠幇浣跨敤typedef闈炲父鍏抽敭錛屽洜涓哄疄渚嬪寲鍚庣殑妯℃澘瀹氫箟閫氬父寰堥暱錛岄氳繃浣跨敤typedef鍙互鏈夋晥鐨勭緝鐭唬鐮侀暱搴︺傚:
class UseTest
{
public:
聽聽聽 typedef Test<int> intTT;
聽聽聽 ...
};
榪欐椂闂灝辨潵浜?褰撴垜鍐橴seTest::intTT錛岃繖涓猧ntTT絀剁珶鏄疷seTest鐨勪竴涓潤(rùn)鎬佹垚鍛?static)榪樻槸涓涓被鍨嬪憿錛熸墍浠ypename鍏抽敭瀛楀氨寮曞叆浜?jiǎn)C++銆?br />鎵浠ュ湪瀹氫箟涓涓猧ntTT鐨勫璞℃椂,鎴戜滑灝辮榪欐牱鍐?
聽 typename UseTest::intTT int_tt_obj;
閫氳繃typename鏄庣‘鎸囧嚭intTT鏄竴涓被鍨嬭屼笉鏄竴涓潤(rùn)鎬佹垚鍛樸?br />
]]>