The eighth chapter: function exploration

8.1 Questions

1#include <iostream>2 voidSillyConst Char* S,intn =0);3 intMain ()4 {5     Char*pointer ="Lala";6Silly"Hello?");7      for(inti =0; I <5; i++)8 Silly (pointer,i);9 }Ten voidSillyConst Char* S,intN) One { A     Static intUse =0; -     intLimit = + +Use ; -      for(inti =0; i < limit; i++) theStd::cout << S <<'\ t'<<"limit ="<< Limit <<'\ t'<<"i ="<< I <<Std::endl; -}

Stastic restricting local variables

8.4 Questions

1#include <iostream>2#include <cstring>//for strlen (), strcpy ()3 using namespacestd;4 structstringy {5  Char* STR;//points to a string6  intCt//length of string (not counting ')7  };8 voidShowConst Char*STR,intCNT =1);9 voidShowConstStringy & BNY,intCNT =1);Ten void Set(Stringy & BNY,Const Char*str); One intMainvoid) A { - stringy Beany; -  CharTesting[] ="Reality isn ' t what it used to be."; the  Set(Beany, testing);//First argument is a reference, -  //allocates space to hold copy of testing, -  //sets STR member of Beany to the -  //new block, copies testing to new block, +  //and sets CT member of Beany -Show (Beany);//Prints member string once +Show (Beany,2);//prints member string twice Atesting[0] ='D'; attesting[1] ='u'; -Show (testing);//Prints testing string once -Show (Testing,3);//Prints testing string thrice -Show"done!"); -  return 0; - } in //corresponding show (testing) - voidShowConst Char*STR,intCNT) to { +      while(cnt-->0) -cout << str <<Endl; the } * //corresponding Show (Beany) $ voidShowConstStringy &bny,intCNT)Panax Notoginseng { -      while(cnt-->0) thecout << bny.str <<Endl; + } A void Set(Stringy & BNY,Const Char*str) the { +Bny.ct =strlen (str); -Bny.str =New Char[Bny.ct +1]; $ strcpy (BNY.STR,STR); $ }

The function prototype CNT = 1, if the default does not enter CNT, then the default is 1; If you enter a value of n, you get the new value N. For example, 20 and a line of code.

8.5 questions

1#include <iostream>2Template <classT>3 t Max5 (t ar[])4 {5     intN;6T max = ar[0];7      for(n =0; N <5; n++)8         if(Ar[n] >max)9Max =Ar[n];Ten     returnMax; One } A Const intLIMIT =5; - intMain () - { the     DoubleArr1[limit] = { A,32.23,-423,-37.987,35.9}; -     intArr2[limit] = { the, -, the, $,- -}; -Std::cout << max5 (arr1) <<Std::endl; -Std::cout << max5 (arr2) <<Std::endl; + } -  

function template.

Eighth chapter: function Exploration