CODEWITHSUNDEEP
c++arrayslinked-list
Fattaneh Talebi
Fattaneh Talebi

Reputation: 767

dynamic size array in linked list

I want to have a linked list, with a variable which has dynamic size, because I want to just allocate different sizes for a variable in different nodes.
for example node1 has a array variable with size 1, but node 2 has a array variable with size 10, and node3 never allocates this array. like this:

struct st{
   int * var_dynamic;
   int x;
};

now I want to initialize them. for the static one, it is like this:

struct st st1;
st1.x=1;

but how can I initialize the dynamic one?
Is it something like this?

st1.var_dynamic= new int [100];

and if yes, Is this way correct and efficient?

Upvotes: 1

Views: 368

Answers (1)

Angew is no longer proud of SO
Angew is no longer proud of SO

Reputation: 171167

The most idiomatic, straightforward, and safe solution is to simply use std::vector:

struct st
{
  std::vector<int> var_dynamic;
  int x;
};

For using std::vector, consult a reference documentation, or your favourite book.

Upvotes: 2

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