PracticeDev/study_cpp/cpp_primer_source_code/Chapter 4/mixtypes.cpp

28 lines
832 B
C++

// mixtypes.cpp --some type combinations
#include <iostream>
struct antarctica_years_end
{
int year;
/* some really interesting data, etc. */
};
int main()
{
antarctica_years_end s01, s02, s03;
s01.year = 1998;
antarctica_years_end * pa = &s02;
pa->year = 1999;
antarctica_years_end trio[3]; // array of 3 structures
trio[0].year = 2003;
std::cout << trio->year << std::endl;
const antarctica_years_end * arp[3] = {&s01, &s02, &s03};
std::cout << arp[1]->year << std::endl;
const antarctica_years_end ** ppa = arp;
auto ppb = arp; // C++0x automatic type deduction
// or else use const antarctica_years_end ** ppb = arp;
std::cout << (*ppa)->year << std::endl;
std::cout << (*(ppb+1))->year << std::endl;
// std::cin.get();
return 0;
}