C++Primer Plus（第六版） 第八章 第二题

#include<iostream>
#include<cstring>

struct CandyBar
{
char name[40];
double weight;
int heat;
};

void setCandyBar(CandyBar &candybar, const char *name = "Millennium Munch", const double weight = 2.85, const int heat = 350);
void showCandyBar(const CandyBar &candybar);

int main()
{
using namespace std;
CandyBar c1, c2;
setCandyBar(c1);
showCandyBar(c1);
setCandyBar(c2, "Abc", 8.45, 8700);
showCandyBar(c2);
cin.get();
return 0;
}

void setCandyBar(CandyBar & candybar, const char * name, const double weight, const int heat)
{
strcpy_s(candybar.name, name);
candybar.weight = weight;
candybar.heat = heat;
}

void showCandyBar(const CandyBar & candybar)
{
std::cout << "name:" << candybar.name << ",weight:" << candybar.weight << ",heat:" << candybar.heat << std::endl;
}