Can you iterate through a struct in C?

There is no way. C/C++ are static type languages by default. Without any meta information it is not possible to iterate through all elements of structure by not looking its definition.

What are iterators iterators are used to iterate over C like array?

Explanation: Iterators are STL components used to point a memory address of a container. They are used to iterate over container classes.

Can you iterate through a struct?

Answer #1: Nope, not with the language as it is. You could do it by deriving your classes from a common base, and then implementing your own iterator to return pointers to each item as the iterator is traversed. Alternatively put the items in a std::vector and use that to provide the iteration.

How do you iterate over an array of unknown size?

This is the method:

1. #include
2. int main(void) {
3. // your code goes here.
4. int a[] = {2,3,4,5};
5. int size;
6. size = sizeof(a)/sizeof(a[0]);//Method.
7. printf (“size = \%d”,size);
8. return 0;

Why do we need iterators in C++?

Iterators are used to traverse from one element to another element, a process is known as iterating through the container. The main advantage of an iterator is to provide a common interface for all the containers type. Iterators make the algorithm independent of the type of the container used.

Can you iterate through a struct C++?

Yes, this is not possible in C++. You can’t make a function take a ‘struct’, you have to tell it what kind of struct (ie, you have to specify either abc or def, you can’t just have it take any struct).

How do you create a struct in C++?

To create a C++ struct, we use the struct keyword. Pointers pointing to a struct are created similarly to how pointers which is pointing to regular types are created. A struct can be passed as an argument to a function in the same way ordinary functions are passed.

How do you go through a list in C++?

Iterating through list using Iterators

1. Create an iterator of std::list.
2. Point to the first element.
3. Keep on increment it, till it reaches the end of list.
4. During iteration access, the element through iterator.

How to iterate through a struct and print its members?

You can easily iterate through the members of a struct and print them using standard C++: A a; printf(a.a); printf(a.b); printf(a.c);. There are plenty of ways to make the syntax more like the desired ‘loop’, using some kind of custom reflection mechanism.

Is it possible to loop through all the members of a struct?

The answer to the question is not ‘no’. You can easily iterate through the members of a struct and print them using standard C++: A a; printf(a.a); printf(a.b); printf(a.c);. There are plenty of ways to make the syntax more like the desired ‘loop’, using some kind of custom reflection mechanism.

How to iterate through a list using a while loop?

If it is not the first node, set the value of currentNode to the next address of temp. This means, temp is linked to the currentNode. After the loop is completed, set the value of next of temp as NULL. Set the value of head to temp. Now, iterate through the elements of the list using a while loop. If the current node is NULL, exit from the loop.

How do you iterate through a list with NULL values?

Now, iterate through the elements of the list using a while loop. If the current node is NULL, exit from the loop. Print the value for each node and set the next address to current.