C + + Primer The Nineth chapter of post-curriculum programming

1.

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Code: Header File Golf.h code:

const int Len = 40;struct golf{    char Fullname[len];    int Handicap;}; void Setgolf (Golf & G, const char * name, int hc); int Setgolf (Golf & G); void Handicap (Golf & G, int hc); void s Howgolf (const golf & G);

Golf.cpp Code

#include <iostream> #include <cstring> #include "golf.h" using namespace Std;void Setgolf (Golf & G, const    char * name, int hc) {strcpy (g.fullname, name); G.handicap = HC;}    int Setgolf (Golf & G) {cout<< "Please enter full name:";    Cin.getline (G.fullname, Len);    if (g.fullname[0] = = ' + ') return 0;    cout << "Enter Handicap value:"; while (!) (        CIN >> G.handicap)) {cin.clear ();    cout << "Please enter an integer:";    } while (Cin.get ()! = ' \ n ') continue; return 1;} void Handicap (Golf & G, int hc) {g.handicap = HC;}    void Showgolf (const golf & G) {cout << "golfer:" << g.fullname << "\ n"; cout << "Handicap:" << g.handicap << "\ n";}    const INT Mems = 5;int Main () {golf Team[mems];    cout << "Input" << Mems << "team member: \ n";    int i;    for (i=0; i<mems; i++) if (Setgolf (team[i]) = = 0) break; for (int j=0; j<i; j + +) Showgolf (Team[j]);    Setgolf (Team[0], "Fred Norman", 5);    Showgolf (Team[0]);    Handicap (Team[0], 4);    Showgolf (Team[0]); return 0;}

Execution Result:

2, change the program listing 9.8: replace the character array with a string object. This way, the program will no longer need to checkwhether the input string is too long, the same time the input string can be compared to the string "", than the inference isNo blank lineCode:

#include <iostream> #include <string>using namespace std;void strcount (const string &str); int main () {    string input;    cout << "Enter a line:\n";    Getline (cin, input);    while (""! = input)    {        strcount (input);        cout << "Enter next line:";        Getline (cin, input);    }    cout << "bey!\n";} void Strcount (const string &str) {    cout << "\" "<< str <<" \ ":";    int count = Str.length ();    cout << Count << "  characters\n";}

Execution Result:

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3.
Code:

#include <iostream> #include <cstring>struct chaff{    char dross[20];    int slag;}; int main () {    using Std::cout;    Using Std::endl;    Chaff *p1;    int i;    P1 = new Chaff[2];    std::strcpy (P1[0].dross, "Tiffany Zhao");    p1[0].slag=13;    std::strcpy (P1[1].dross, "Guugle");    p1[1].slag=-23;    for (i=0; i<2; i++)        cout << p1[i].dross << ":" << p1[i].slag <<endl;    delete [] p1;    return 0;}

Execution Result:

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C + + Primer The Nineth chapter of post-curriculum programming