Question: Language C++ Given an integer variable bar . _How can you create a pointer foo to bar ? _How can you extract the integer from

Language C++

Given an integer variable bar. _How can you create a pointer foo to bar? _How can you extract the integer from the pointer foo? And, what is this called?

Given an array int r[3] = {5, 4, 3}: _What does *(r + 1) give? _Given the pointer auto *y_ptr = &r[1]. What is y_ptr + 1?

What is a scope?

Given the Gridpoint object starts with member variables x, y and z: _ How can you extract x from the start? _ Given Gridpoint* ptr = &start, how can you extract x from ptr?

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