structure initialization

Example by: Ira Oldham, References: Savitch eighth edition, section 10.1; Gaddis seventh edition, section 10.4

The member variables within a structure variable can be initialized when the structure variable is defined.

1  struct Part
2  {
3    int    id;
4    int    onHand;
5    double cost;
6  };
7  int main(void)
8  {
9    Part wrench = {12345, 13, 8.10};
10   cout << "ID:      " << wrench.id     << endl;
11   cout << "On Hand: " << wrench.onHand << endl;
12   cout << "Cost:    " << wrench.cost   << endl;
13   return 0;
14 }

ID:      12345
On Hand: 13
Cost:    8.10

• line 9 defines the variable wrench and initializes its three member variables.

The list of initial values are enclosed in braces and seperated with commas. The order of thie initialization list is the same as the order of the definition of the member variables.