Prelab5.c

// Don't steal my stuff btw I will find you

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

typedef struct
{
	int rows, columns;
} TableDimensions;

void ** createTable(int rows, int columns, int elementSize)
{
	void ** table = malloc(rows * sizeof(void *));
	*table = malloc(columns * elementSize + sizeof(TableDimensions));
	for(int i = 1; i<rows; i++)
	{
		*(table + i) = malloc(columns * elementSize);
	}
	TableDimensions test = {rows, columns};
	**((TableDimensions **)table) = test;
	*table += sizeof(TableDimensions);

	return (void **)table;
}

int getRows(void ** table)
{
	return ((TableDimensions *)((*table) - sizeof(TableDimensions)))->rows;
}

int getColumns(void ** table)
{
	return ((TableDimensions *)((*table) - sizeof(TableDimensions)))->columns;
}

void freeTable(void ** table)
{
	free(*table - sizeof(TableDimensions));
	table = NULL;
	return;
}

int main(void)
{
	int rows = 10, columns = 10;
	int ** table = (int **)createTable(rows, columns, sizeof(int));
	printf("The array values are:\n");

	// Initialize array values and print them at the same time
	int counter = 0;
	for(int i = 0; i<getRows((void **)table); i++)
	{
		for(int j = 0; j<getColumns((void **)table); j++)
		{
			counter++;
			table[i][j] = counter;
			printf("%d\t", table[i][j]);
		}
		puts("");
	}

	freeTable((void **)table);

	puts("Program has finished.");
	return 0;
}