ft_select/libft/ft_isnum.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_isnum.c                                         :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: bchanot <bchanot@students.42.fr>           +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2016/07/20 14:23:27 by bchanot           #+#    #+#             */
/*   Updated: 2016/07/20 14:25:22 by bchanot          ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "libft.h"

int	ft_isnum(const char *s)
{
	if (*s == '+' || *s == '-')
		s++;
	if (*s == '\0')
		return (0);
	while (*s)
	{
		if (!ft_isdigit(*s))
			return (0);
		s++;
	}
	return (1);
}