锘??xml version="1.0" encoding="utf-8" standalone="yes"?>国产精品美女久久久久,午夜精品久久久久,久久亚洲中文字幕精品一区 http://www.shnenglu.com/wolf5x/category/10845.htmlgood luck & have fun zh-cn Sun, 04 Sep 2011 01:38:25 GMT Sun, 04 Sep 2011 01:38:25 GMT 60 The "Clockwise/Spiral Rule" http://www.shnenglu.com/wolf5x/archive/2011/08/31/154778.html<A href="mailto:wolf5x1016@gmail.com">wolf5x</A> <A href="mailto:wolf5x1016@gmail.com">wolf5x</A> Wed, 31 Aug 2011 05:07:00 GMT http://www.shnenglu.com/wolf5x/archive/2011/08/31/154778.html http://www.shnenglu.com/wolf5x/comments/154778.html http://www.shnenglu.com/wolf5x/archive/2011/08/31/154778.html#Feedback 0 http://www.shnenglu.com/wolf5x/comments/commentRss/154778.html http://www.shnenglu.com/wolf5x/services/trackbacks/154778.html void (*signal(int, void (*fp)(int)))(int); Question: What is 'signal' ?
#include < cstdio > using namespace std; void f( int ); void ( * pf)( int ), ( * qf)( int ); void ( * hf( int , void ( * )( int )))( int ); typedef void ( * sighandler_t)( int ); sighandler_t signal( int , sighandler_t); void f( int a) { printf( " void f(int %d)\n " , a); } void ( * hf( int _i, void ( * _pf)( int )))( int ) { printf( " _i = %d\n " , _i); _pf(_i); return _pf; } sighandler_t signal(int signum, sighandler_t sighandler) { printf( " signal num = %d\n " , signum); sighandler(signum); return sighandler; } int main() { pf = &f; qf = hf( 12 , pf); qf( 23 ); signal( 54 , f); return 0 ; } void (*signal(int, void (*)(int)))(int);Answer: signal is a function, passing {an int and a pointer [to a function passing an int returning nothing (void)] }, returning {a pointer [to a function passing an int returning nothing (void)] }. ]]> 欏轟究璐翠釜闅愬紡綾誨瀷杞崲瑙勫垯澶嶄範(fàn)涓涓?/title> http://www.shnenglu.com/wolf5x/archive/2009/10/27/99552.html<A href="mailto:wolf5x1016@gmail.com">wolf5x</A> <A href="mailto:wolf5x1016@gmail.com">wolf5x</A> Tue, 27 Oct 2009 02:05:00 GMT http://www.shnenglu.com/wolf5x/archive/2009/10/27/99552.html http://www.shnenglu.com/wolf5x/comments/99552.html http://www.shnenglu.com/wolf5x/archive/2009/10/27/99552.html#Feedback 0 http://www.shnenglu.com/wolf5x/comments/commentRss/99552.html http://www.shnenglu.com/wolf5x/services/trackbacks/99552.html 2. 鍚﹀垯,濡傛灉鍏朵腑涓涓搷浣滄暟涓篸ouble, 鍒欏彟涓涓搷浣滄暟琚漿鎹負(fù)double. 3. 鍚﹀垯,濡傛灉鍏朵腑涓涓搷浣滄暟涓篺loat, 鍒欏彟涓涓搷浣滄暟涔熻漿鎹負(fù)float. 4. 鍚﹀垯,涓や釜鎿嶄綔鏁拌繘琛?"鏁村瀷鍗囩駭": a. 濡傛灉鍏朵腑涓涓搷浣滄暟涓簎nsigned long int, 鍒欏彟涓涓搷浣滄暟涔熻瑙嗕負(fù)unsigned long int. b. 鍚﹀垯,濡傛灉鍏朵腑涓涓搷浣滄暟涓簂ong int,鑰屽彟涓涓搷浣滄暟綾誨瀷鏄痷nsigned int, 騫朵笖long int鑳藉琛ㄧずunsigned int鐨勬墍鏈夊?鍒欏彟涓涓搷浣滄暟涔熻瑙嗕負(fù)long int;濡傛灉long int涓嶈兘琛ㄧずunsigned int鐨勬墍鏈夊?鍒欎袱涓暟閮借瑙嗕負(fù)unsigned long int. c. 鍚﹀垯, 濡傛灉鍏朵腑涓涓搷浣滄暟鏄痩ong int,鍒欏彟涓涓搷浣滄暟涔熻瑙嗕負(fù)long int. d. 鍚﹀垯, 濡傛灉鍏朵腑涓涓搷浣滄暟鏄痷nsigned int, 鍒欏彟涓涓搷浣滄暟涔熻瑙嗕負(fù)unsigned int. e. 鍚﹀垯, 涓や釜鎿嶄綔鏁伴兘琚涓篿nt.
]]> 灝忕帺鎰忓効 鍑芥暟鎸囬拡瀹氫箟 http://www.shnenglu.com/wolf5x/archive/2009/06/10/87289.html<A href="mailto:wolf5x1016@gmail.com">wolf5x</A> <A href="mailto:wolf5x1016@gmail.com">wolf5x</A> Wed, 10 Jun 2009 03:30:00 GMT http://www.shnenglu.com/wolf5x/archive/2009/06/10/87289.html http://www.shnenglu.com/wolf5x/comments/87289.html http://www.shnenglu.com/wolf5x/archive/2009/06/10/87289.html#Feedback 0 http://www.shnenglu.com/wolf5x/comments/commentRss/87289.html http://www.shnenglu.com/wolf5x/services/trackbacks/87289.html 1 #include < iostream > 2 using namespace std; 3 4 #define DF(N) void N(){\ 5 cout << " function " #N " called... " << endl;} 6 7 DF(a)DF(b)DF(c)DF(d)DF(e)DF(f) 8 9 void ( * func_table[])() = {a,b,c,d,e,f}; 10 11 int main(){ 12 for ( int i = 0 ; i < 6 ; i ++ ){ 13 (func_table[i])(); 14 } 15 return 0 ; 16 }
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