0-strcat.c

#include "main.h"

/**
 * _strcat - concatenates the string pointed to by @src to
 * the end of the string pointed to by @dest
 *@dest: String that will append
 *@src: string that will be concatenated upon
 *
 * Return: returns pointer to @dest
 */

/*
1. First, we’re declaring a function called _strcat that takes two arguments: dest and src.
2.  Next, we’re declaring two variables: index and dest_len.
3.  Then, we’re using a while loop to iterate through the dest string and find its length.
4.  Next, we’re using a for loop to iterate through the src string and append each character to the end of the dest string.
5.  Finally, we’re returning the dest string.
*/
/*
Time Complexity: O(n)
*/
char *_strcat(char *dest, char *src)
{
	int index = 0, dest_len = 0;

	while (dest[index++])
		dest_len++;
	for (index = 0; src[index]; index++)
		dest[dest_len++] = src[index];

	return (dest);
}