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int ia[] = {1,2,3,4};
for(int *p = ia,size_t size = sizeof(ia)/sizeof(ia[0]); p != ia + size; p++)
{
cout<<*p<<endl;
}
{size_t size = sizeof(ia) / sizeof(ia[0]);
for(int *p = ia; p != ia + size; p++)
{
cout << *p << endl;
}}