What are all the proper ways to initialize a variable a of the following type:
struct some_type {
size_t s;
double tab[3];
};

Penalty for wrong ticks.

Question

What are all the proper ways to initialize a variable  a  of the following type: 
 struct some_type {
    size_t s;
    double tab[3];
};
 
 Penalty for wrong ticks.

Accepted Answer

struct some_type a;
memset(&a, 0, sizeof(a));

Accepted Answer

struct some_type a = { 0, { 1.0 } };

Answer

None of the other.

Answer

struct some_type a;
a.s = 0;
const double init[] = { 0.0, 0.0, 0.0 };
a.tab = init;

Answer

struct some_type {
  size_t s = 0;
  double tab[3] = { 0.0 };
};

Answer

struct some_type a;
a.s = 0;
a.tab = { 0.0, 0.0, 0.0 };

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What are all the proper ways to initialize a variable a of the following type:...

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