utils.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_putnbr_fd.c                                     :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: deleusis <deleusis@student.42.fr>          +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2021/10/19 17:40:50 by deleusis          #+#    #+#             */
/*   Updated: 2022/02/26 19:42:12 by deleusis         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "so_long.h"

void	ft_putchar_fd(char c, int fd)
{
	write (fd, &c, 1);
}

void	ft_putnbr_fd(int n, int fd)
{
	if (n == -2147483648)
	{
		write (fd, "-2147483648", 11);
	}
	else
	{
		if (n < 0)
		{
			n = -n;
			ft_putchar_fd ('-', fd);
		}
		if (n < 10)
			ft_putchar_fd ((n + '0'), fd);
		else
		{
			ft_putnbr_fd (n / 10, fd);
			ft_putnbr_fd (n % 10, fd);
		}
	}
}

int	ft_strncmp(const char *s1, const char *s2, size_t n)
{
	size_t	i;

	i = 0;
	if (n == 0)
		return (0);
	while (s1[i] != '\0' && s1[i] == s2[i] && i < n - 1)
		i++;
	return ((unsigned char)s1[i] - (unsigned char)s2[i]);
}

static int	ft_char_in_set(char c, char *set)
{
	size_t	i;

	i = 0;
	while (set[i])
	{
		if (set[i] == c)
			return (1);
		i++;
	}
	return (0);
}

char	*ft_strtrim(char *s1, char *set)
{
	char	*str;
	size_t	i;
	size_t	start;
	size_t	end;

	if (!s1 || !set)
		return (NULL);
	start = 0;
	while (s1[start] && ft_char_in_set(s1[start], set))
		start++;
	end = ft_strlen(s1);
	while (end > start && ft_char_in_set(s1[end - 1], set))
		end--;
	str = (char *)malloc(sizeof(*s1) * (end - start + 1));
	if (!str)
		return (NULL);
	i = 0;
	while (start < end)
		str[i++] = s1[start++];
	str[i] = 0;
	return (str);
}