Arrays and pointers (the and of all elements in an array)

//1. The following example evaluates all the elements in the array and//Array-to- pointer relationship, Integer is 4 bytes, a[] = = *a, a[i] = * (a+i)#include <stdio.h>#defineSIZE 10intSUM (intA[],intn);intMain () {intAR [SIZE] = {Ten, -, -, +, -, -, -, the, -}; Longanswer; Answer= SUM (AR, SIZE);//The emphasis is on this sentence, AR is int [10] Typeprintf"%lu\n",sizeof(answer));//answer is a long 8-byteprintf"answer=%lu\n", answer);//the result is a.    return 0;}intSUM (intA[]/***a*/,intN) {//two kinds of equivalence        intTotal =0, i =0;  for(i =0; I < n; i++) {//Total + = A[i]; //the two formulas above and below are equivalent,Total + = * (A +i); }    returnTotal ;}

The and of all the elements in the array.

Arrays and pointers (the and of all elements in an array)