程序设计教案10 overload允许多个函数共享同一个名

REliable,REliable, ligent&ScalableEpisode

REliable, ligent&Scalablefunction1+1.0+"1.0"

REliable, ligent&Scalableinti_max(int,intintvi_max(constvector<int>&intmatrix_max(constmatrix&intmax(int,intintmax(constvector<int>&intmax(constmatrix&

REliable, ligent&Scalableintmax(int,intintmax(constvector<int>&intmax(constmatrix&

REliable, ligent&Scalable

REliable, ligent&Scalablevoidprint(conststring&);voidprint(vector<int>& voidprint(conststring&str);voidprint(conststring&);

REliable, ligent&Scalable unsignedintmax(inti1,inti2intmaxintint// intmax(int*ia,intsz);intmax(int*,int=10);

REliable, ligent&ScalabletypedefdoubleDOLLAR;//typedef并不引入新的类型externDOLLARcalc(DOLLAR);externintcalc(double//错误：只有返回类型不同（编译报错 voidf(intvoidf(constint);//同一函数重

REliable, ligent&Scalable如果把const或volatile应用在指针或参数指向的类型上，则在判断函数是否相同时，就要考虑const和volatile修饰voidf(int*voidf(constint*voidf(int&voidf(constint&

REliable, ligent&ScalableScreen&moveHome();Screen&moveAbs(int,int);Screen&moveRel(int,int,char*direction);Screen&moveX(int);Screen&moveY(int#includevoidprint(conststring&voidprint(double);//overloadsprint()voidfooBar(intival){externvoidprint(int错误print(conststring&在这个域中被隐藏print("Value:");printivalok:printint}#include<string>namespaceIBMexternvoidprint(conststringexternvoidprint(double}namespaceDisney独立的域externvoidprint(int}REliable,REliable, ligent&Scalablenamespacelibs_R_us{intmax(int,int);intmax(double,double);externvoidprint(int);externvoidprint(double);}//usingusinglibs_R_us::printdoublevoid{max87,65libs_R_us::maxintintmax35.576.6libs_R_us::maxdouble,double}REliable,REliable, ligent&Scalable#include<string>namespacelibs_R_us{externvoidprint(int);externvoidprint(double);}externvoidprint(conststring&libs_R_us::printint和libs_R_us::printdoubleprint(conststring&usinglibs_R_us::print;voidfooBar(intival{printValueprint(conststring&printivallibs_R_us::printint}REliable,REliable, ligent&Scalablenamespacelibs_R_us{voidprint(int);voidprint(double);}voidprint(intusinglibs_R_us::print错误print(intvoidfooBar(intival{}REliable,REliable, ligent&Scalable#include<string>namespacelibs_R_us{externvoidprint(int);externvoidprint(double);}externvoidprint(conststring&using指示符print(intprint(double和print(conststringusingnamespacelibs_R_us;voidfooBar(intival){printValueglobalprint(conststring&)printivallibs_R_us::print(int)}REliable,REliable, ligent&Scalableintprint(int);}namespaceDisney{}usingnamespaceIBM;intmain(){return0;}

REliable, ligent&Scalable

REliable, ligent&ScalablefunctionoverloadTt1,voidf(int,int);voidf(float,float);intmain(){f(t1,t2}voidf();voidf(int);voidf(double,double=3.4

REliable, ligent&Scalablevoidf(char*,char*);intmain(){f(5.6return}

f(double,f(char*,voidf();voidf(int);voidf(double,double=3.4

REliable, ligent&Scalablevoidf(char*,char*);intmain(){f(5.