Vertex.h

#ifndef _VERTEX_AM_H_LB
#define _VERTEX_AM_H_LB 1
#pragma once
#include<stdint.h>
#include<stdbool.h>
/**
 * Vertex Library C
 *
 * GCC C99 <Vertex.h>
 *
 * @author Amanuel Bogale
 * @copyright 2016 Amanuel Bogale
 * @license   http://www.opensource.org/licenses/mit-license.html  MIT License
 *
 */

//@union for storing
//data types supported
//for vertex
typedef union
{
		char ch; //1 byte
		unsigned char uch;//1 byte
		signed char sch;// 1 byte
		int in;//2 or 4bytes
		unsigned int uin;//2 or 4bytes
		long ln;// 4byte
		unsigned long uln; //4byte
		long long lnln; //8byte
		short sh;// 2byte
		unsigned short ush; //2bytes
		float fl;//4byte
		double db; //8byte
		long double ldb; //10byte
}type;

/*
 * @enum for index
 * first or last
 */

typedef enum
{
	FIRST,
	LAST
}index;

/*
 * @struct for defining
 * vertex. Initalize First
 */
struct vertex_am
{
	size_t current_size;
	type type;
	long long size_contents;
	void **contents; //Array Of Void Pointers
	//Add to the end of array
	void (*add)(struct vertex_am *self,void*val);
};

typedef struct vertex_am vertex_am;


/*
 * Vertex Initalizer
 * Always call after initalizing a
 * vertex
 */
vertex_am* init_vertex(size_t size, vertex_am* vertex);

/*
 * Vertex "Detilazer"
 * Always call at the end
 * of lifetime of a vertex
 * to stop leaks
 */
void end_vertex(vertex_am* vertex);

/*
 * Get Number of elements
 */
long long get_elements_num(vertex_am vert);

/*
 * Add to the end
 * of the Dynamic Array
 * / "Vertex"
 */
void add_end(vertex_am *vert, void* val);
/*
 * Add to the beggining
 * of the Dynamic Array
 *  / "Vertex"
 */
void add_beg(vertex_am *vert, void* val);

/*
 * Add to the specified
 * index of the Dynamic
 * Array / "Vertex"
 */

void add_index(vertex_am *vert, void* val,long long index);

/*
 * Get Value, based on Index
 */
void* get_val(vertex_am vert,long long index);
/*
 * Get index based on value.
 * Thier might be multiple
 * values that are the same.
 * So the param decides this
 * @param index, FIRST for
 * first value that appears
 * LAST for last value that appears
 */
int get_index(vertex_am vert, void*key,index in);


/*
 * Get the index based on
 * after how many occurrences
 * do you decide to get the index
 * . If -1 is returned, you have incorrect
 * specifier. NOTE: START FROM 0
 */
int get_specified_index(vertex_am vert, void*key, int specifier);

/*
 * Delete the Last
 * Element on the
 * Dynamic Array.
 * @param returns true
 * if successfully deleted,
 * false if unsuccessful
 */
bool pop_end(vertex_am *vert);

#endif