The program below has a problem. Which statement correctly describes it? #include int main(void) { int a[3] = {1, 2, 3}, b[3]; b = a; printf("%d\n", b[0]); return 0; }

b = a; – an array cannot be assigned; copy with a loop or memcpy()

b must be initialised before use

Arrays · Find the Error · Question 1

Error: assigning one array to another in C Answer, explanation & discussion

Question 1 Back to Exercise

The program below has a problem. Which statement correctly describes it?

main.c

#include <stdio.h>

int main(void) {
    int a[3] = {1, 2, 3}, b[3];
    b = a;
    printf("%d\n", b[0]);
    return 0;
}

Correct Answer: Option A

An array name is not a modifiable lvalue, so it cannot be on the left of =. Use memcpy(b, a, sizeof a); (from <string.h>) or a loop.

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