CODEWITHSUNDEEP
c++pointersrecursionstruct
user3215251
user3215251

Reputation: 249

Assign values to arrays in structs

I am using a struct that, within it, it has an array of pointers to other structs of the same type. How do I assign that array at design time to have multiple elements?

Example:

struct structx {
int value;
structx *pChild[];
};

void funcY(hasChild*, int);

struct structx noChild = { 1, NULL };

struct structx otherNoChild = { 2, NULL };

struct structx childHaver = {
3,
&noChild
};

struct structx parent = {
4,
&childHaver
};

int _tmain(int argc, _TCHAR* argv[])
{
funcY(&parent, 0);

cout << endl;

funcY(&childHaver, 0);

system("pause");
return 0;
}

void funcY(hasChild* child, int childPosition)
{
if (child->pChild[0] != NULL)
{
    funcY(child->pChild[childPosition], childPosition);
}
cout << child->value << endl;
}

This code is for C++ in visual studio 2008.

When I use this code, it works just fine, and prints 1, 3, 4.

However, if I try to put multiple addresses into the struct, like so:

struct structx parent = {
4,
(&childHaver, &noChild)
};

It despite sending in position 0, it will select &noChild, which should be the next position in the array.

Is there a special way to do this in the syntax that I'm missing?

Upvotes: 0

Views: 194

Answers (1)

excray
excray

Reputation: 2858

Use the curly braces for initializing the array of structs. 

struct structx parent = {
4,
{&childHaver, &noChild}
};

Upvotes: 1

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