//#include <unistd.h> #include <cstdlib> #include <iostream> using namespace std; int main(int argc, char *argv[]) { int sz = 1024*1024*1024; cout<<sz; char * m = new char[sz]; if(m==NULL) { cout<<"new failed\n"; exit(-1); } for(int i=0; i<sz; i++) m[i]=0; sleep(5); // delete m; return 0; }