get_next_line_utils_bonus.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   get_next_line_utils_bonus.c                        :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: vmustone <marvin@42.fr>                    +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2022/12/01 12:09:42 by vmustone          #+#    #+#             */
/*   Updated: 2022/12/02 15:08:23 by vmustone         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "get_next_line_bonus.h"

size_t	ft_strlen(const char *s)
{
	int	i;

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

char	*ft_strchr(const char *s, int c)
{
	char	*str;

	if (!s)
		return (NULL);
	str = (char *)s;
	while (*str != '\0')
	{
		if (*str == (char)c)
			return (str);
		str++;
	}
	return (NULL);
}

char	*ft_strjoin(char const *s1, char const *s2)
{
	size_t	i;
	size_t	j;
	size_t	len;
	char	*ret;

	i = 0;
	j = 0;
	if (!s1 || !s2)
		return (NULL);
	len = ft_strlen(s1) + ft_strlen(s2);
	ret = (char *)malloc(sizeof(char) * (len + 1));
	if (!ret)
		return (NULL);
	while (s1[i] != '\0')
	{
		ret[i] = s1[i];
		i++;
	}
	while (s2[j] != '\0')
		ret[i++] = s2[j++];
	ret[i] = '\0';
	return (ret);
}

void	ft_bzero(void *s, size_t n)
{
	char	*c;

	c = (char *) s;
	while (n > 0)
	{
		*c = '\0';
		c++;
		n--;
	}
}

void	*ft_calloc(size_t count, size_t size)
{
	void	*ptr;

	if (count == 0 || size == 0)
		return (ft_calloc(1, 1));
	if ((size_t)-1 / count < size)
		return (NULL);
	ptr = (void *)malloc(count * size);
	if (!ptr)
		return (NULL);
	ft_bzero(ptr, (count * size));
	return (ptr);
}