ISO C forbids empty initializer braces in C

Question

I have a struct like this:

typedef struct
{
   int a;
   int b;
   int c;
   int d;
} Hello;

then I declare it in this way:

Answer 1

Hello hello[6] = {{0}};

Will initialize all members of each struct to 0.

Answer 2

That's not valid C. The universal zero initializer in C is {0}, not {}.

Answer 3

Try something like this:-

  Hello hello[6] = {{0}};

This will initialize all the members of struct to 0.