structures

[yoli1780]

I have the next code:

  new_->first = NULL;
  new_->last = NULL;
  new_->sum = 0;
  new_->len = 0;

is there a faster way you can change the structure variables or does it have to be one by one?


p.s this is the code:

#include <stdio.h>
#include <stdlib.h>

struct node
{
	int data;
	struct node* next;
	struct node* prev;
};

struct mainlist
{
	struct node* first;
	struct node* last;
	int sum;
	int len;
};

typedef struct mainlist* list;


list createList(void) 
{
	list new_ = (list)malloc(sizeof(struct mainlist));
    //set structure values to 0.
    new_->first = NULL;
	new_->last = NULL;
	new_->sum = 0;
	new_->len = 0;

	return new_;
}


int main()
{

	list mylist = createList();

    return 0;
}

[Ganado]

Is this C, or C++? Assuming C:

This really isn't a problem you should worry about. It's a hell of a lot cleaner to have four clear commands. But you can use memset.

memset(mylist, 0, sizeof(*mylist));

[yoli1780]

thank you :) it works now