PenguinBuffer/examples/p_queue_example.c

#include "p_queue.h"

DEFINE_QUEUE(int);

#define SIZE_QUEUE (256)

queue_int_t queue;
int buffer[SIZE_QUEUE];

void display(queue_int_t* queue)
{
	if (queue->csize == 0)
	{
		printf("queue is empty\n");
	}
	else
	{
		printf("Queue:\n");
		int i = queue->head;
		for (int j = 0; j < queue->csize; j++)
		{
			printf("[%d]: %d ", i + j, queue->data[(i + j) % queue->msize]);
		}
		printf("\n");
	}
}

int main(int argv, char** argc)
{
	queue_int_init(&queue, buffer, SIZE_QUEUE);

	// queue.enqueue(&queue, 10);
	queue.empty(&queue);
	printf("csize: %d\n", queue.csize);
	queue.enqueue(&queue, 20);
	queue.enqueue(&queue, 30);
	queue.enqueue(&queue, 40);
	display(&queue);
	queue.enqueue(&queue, 10);

	int val = 0;
	queue.dequeue(&queue, &val);
	queue.dequeue(&queue, &val);

	display(&queue);

	queue.empty(&queue);

	display(&queue);
}