ISO C forbids empty initializer braces in C

问题

I have a struct like this:

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

then I declare it in this way:

Hello hello[6] = {};

Then I got this warning: ISO C forbids empty initializer braces, anyhow I think I need to initialize it, how to do it in the right way?

回答1:

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

Will initialize all members of each struct to 0.

回答2:

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

回答3:

Try something like this:-

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

This will initialize all the members of struct to 0.

来源：https://stackoverflow.com/questions/13295872/iso-c-forbids-empty-initializer-braces-in-c