Arrays of Pointers
Since variables can be pointers, it should come as no surprise that
we can create arrays of pointers. We declare variables to be
"pointer to int" using int *. We declare arrays using
brackets ([ ] ). We can combine them to declare
an "array of pointers to int" with
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int *pInts[5];
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This declares pInts to be an array of 5 pointers to int.
that is, pInts[0] can point to some int, pInts[1] can point to another int,
and so on. Pictorially, we have
One of the most common uses for arrays of pointers is an array of
character pointers. Each character pointer points to a string.
We can declare an array of char pointers and initialize them to
essentially create an array of strings. For example
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char *months[12] = {"January", "February",
"March", "April",
"May", "June",
"July", "August",
"September", "October",
"November", "December"};
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which we can think of as looking like this:
then we can reference
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months[3] to mean "April",
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An array of "pointers to chars" is used to pass command line arguments
to your program.
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