shared_ptr exercise

shared.cc

// g++ -std=c++11 shared.cc

#include <iostream>
#include <memory>

#include <sys/time.h>
#include <sys/resource.h>

class A {
private:
  char a[0x10000000];
};
typedef std::shared_ptr<A> Aptr;
// typedef A *Aptr;

Aptr getA(void) {
  Aptr a(new A());
  return a;
}

int main(void) {
  struct rusage rusage;
  for (int i = 0 ; i < 1000 ; i++) {
    Aptr a = getA();
    getrusage( RUSAGE_SELF, &rusage );
    std::cout << rusage.ru_maxrss	<< std::endl;
  }
  return 0;
}