string.c

#include "shell.h"

/**
 * _strncat - concatenates n bytes from a string to another.
 * @dest: destination string.
 * @src: source string.
 * @n: number of bytes of str to concatenate.
 *
 * Return: a pointer to the resulting string dest
 */
char *_strncat(char *dest, char *src, int n)
{
	int i, j;

	i = 0;
	j = 0;

	while (dest[i] != '\0')
		i++;

	while (src[j] != '\0' && j < n)
	{
		dest[i] = src[j];
		i++;
		j++;
	}

	dest[i] = '\0';

	return (dest);
}


/**
 * _strcmp - compares two strings
 * @s1: first string to compare
 * @s2: second string to compare
 *
 * Return: less than 0 if s1 is less than s2, 0 if they're equal,
 * more than 0 if s1 is greater than s2
 */
int _strcmp(char *s1, char *s2)
{
	while (*s1 == *s2)
	{
		if (*s1 == '\0')
		{
			return (0);
		}
		s1++;
		s2++;
	}
	return (*s1 - *s2);
}

/**
 * _puts - prints a string to stdout
 * @str: pointer to the string to print
 */
void _puts(char *str)
{
	int i;

	for (i = 0; str[i] != '\0'; i++)
	{
		_putchar(str[i]);
	}
	_putchar('\n');
}

/**
 * _strlen - returns the length of a string
 * @s: string to evaluate
 *
 * Return: the length of the string
 */
int _strlen(char *s)
{
	int i;

	i = 0;

	while (s[i] != '\0')
	{
		i++;
	}

	return (i);
}

/**
 * *_strcpy - copies the string pointed to by src
 * including the terminating null byte (\0)
 * to the buffer pointed to by dest
 * @dest: pointer to the buffer in which we copy the string
 * @src: string to be copied
 *
 * Return: the pointer to dest
 */
char *_strcpy(char *dest, char *src)
{
	int len, i;

	len = 0;

	while (src[len] != '\0')
	{
		len++;
	}

	for (i = 0; i < len; i++)
	{
		dest[i] = src[i];
	}
	dest[i] = '\0';

	return (dest);
}