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asked on

what is a+j

note: I change i to j because i is italic in ee

#include <stdio.h>
#include <string.h>

main()
{
//int A[];
int A[]={2,4,5,8,1};
printf("%d\n",A);
printf("%d\n",&A[0]);
printf("%d\n",A[0]);
printf("%d\n",*A);
//int *p = A;
int j;
for(j = 0;j<5;j++)
{
    printf("variable a[j]: address=%d value=%d\n",&A[j],A[j]);
    //printf("variable a:::: address=%d value=%d\n",&A,*A);
    printf("variable a+j:: address=%d value=%d\n",&A+j,*(A+j));
}
}

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output

-1524265408
-1524265408
2
2
variable a[j]: address=-1524265408 value=2
variable a+j:: address=-1524265408 value=2
variable a[j]: address=-1524265404 value=4
variable a+j:: address=-1524265388 value=4
variable a[j]: address=-1524265400 value=5
variable a+j:: address=-1524265368 value=5
variable a[j]: address=-1524265396 value=8
variable a+j:: address=-1524265348 value=8
variable a[j]: address=-1524265392 value=1
variable a+j:: address=-1524265328 value=1

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User generated image

address =&A[j] = (A+j)
value= A[j] = *(A+j)

what is A+J

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ASKER

If you add 1 to any of the pointers F, I, or C, the result will be the next float, int, or character.

could you give example please

(A+j) == &(A[j]) == &(j[A])

i do not understand &(j[A])

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Did someone claim that it was?

ASKER

&(j[A]) == &(A[j])
(A+j) == (j+A)

what is j[A]

is j an array or list?
is A an array or list?

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ASKER CERTIFIED SOLUTION

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ASKER

Thanks.

i did not fully understand your answers so just need to trust and move on to a debugger local window which is my next question

https://www.experts-exchange.com/questions/28499114/modify-code-so-I-can-see-values-in-a-local-debugger-window.html

>> j[A] is A[j]
It is rare to see j[A]. A[j] is the norm.