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

/*
 * show how to create dynmic strings
 */

int main()
{
	char	**pets;		// a pointer to an array of ptrs
	int	i;		// index for array
	int	capacity;	// total space in array
	int	num_pets;	// used spaces in arrays
	char	str[BUFSIZ];	// input buffer
	char	*newstr;	// pts to allocated string
	
	printf("How many pets in your zoo? ");
	fgets(str, BUFSIZ, stdin);
	capacity = atoi(str);

	pets = malloc( capacity * sizeof( char * ) );
	i = 0 ; 
	while (1 )
	{
		printf("next pet name? ");
		fgets(str, BUFSIZ, stdin);
		if ( str[0] == '\n'  )
			break;
		str[strlen(str)-1] = '\0';	// remove \n
		newstr = malloc( strlen(str) + 1);	// 1 for \0
		pets[i] =  newstr;
		strcpy(newstr, str);
		i++;
	}

	num_pets = i;

	for ( i = 0 ; i < num_pets ; i++ )
		printf("pet[%d] is %s\n", i, pets[i]);
	return 0;
}