C - Pointers and Arrays3

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Pointers and Arrays ...

  • If pa points to a particular element of an array, then by definition pa+1 points to the next element, (pa+i) points i elements after pa, and (pa-i) points i elements before.
  • An array-and-index expression is equivalent to one written as a pointer and offset.
  • A pointer is a variable, so pa = ar and pa++ are legal. But an array name is not a variable; constructions like ar = pa and ar++ are illegal.