MidTerm Exam Question

[aidenkael]

So I have a question on my midterm that is stumping me; Use the pointer fptr and a for loop to loop through the array of numbers.

I tried to do:

double numbers[10] = { 1,2,3,4,5,6,7,8,9,10 };
double * fptr;
for (fptr = &numbers; fptr < &numbers + 10; fptr++)
{
    std::cout << *fptr
}

Which in my head should assign fptr the memory address of the first element of numbers, then add one to the memory address each pass until it is through the list, but I can't even test because I get the following errors:

A value of type double(*)[10] can not be assigned to an entity of type double*

Any ideas? This is my last question and the exam is due at midnight!

[TheIdeasMan]

Hi,

An ordinary array name decays to a pointer.

Doe this help?

[aidenkael]

Not in the slightest.

[TheIdeasMan]

On line 3, you take the address of the array, but the array name is already a pointer. So change &numbers to numbers

[integralfx]

If you would like to use the address-of operator (&), you can just do

fptr = &numbers[0]

This will retrieve the address of the first element in the array. It is exactly the same as

fptr = numbers

as numbers points to the first element in the array.

Hope this helps.