Question

Recently i saw this piece of code. Shouldnt this line be a compile error?char arr[4]="Abc";

What happens here? Is arr a pointer? is the char* copied into an array on stack? is this legal in all version of C++ (and what about C?). I tested and seen this works in VS and code pad which i believe uses gcc

-edit- Just for fun I tried replacing “Abc” with a static const char *. It gave me an invalid initializer error.

int main()
{
    int j=97;
    char arr[4]="Abc";
    printf(arr,j);
    getch();
    return 0;
}

Answer 1

array = ptr is not a legal assignment (if array has an array type and ptr has the corresponding pointer type). In the code you have shown, though, the = introduces an initializer as it is part of a declaration. It is not an assignment.

It is legal to initialize an array of char with a string constant.