diff --git a/ex00/ft_utils.c b/ex00/ft_utils.c
index c97ffe9..0db80a1 100644
--- a/ex00/ft_utils.c
+++ b/ex00/ft_utils.c
@@ -1,12 +1,12 @@
 /* ************************************************************************** */
 /*                                                                            */
 /*                                                        :::      ::::::::   */
-/*   utils.c                                            :+:      :+:    :+:   */
+/*   ft_utils.c                                         :+:      :+:    :+:   */
 /*                                                    +:+ +:+         +:+     */
 /*   By: achubuko <marvin@42.fr>                    +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2023/12/02 21:56:30 by achubuko          #+#    #+#             */
-/*   Updated: 2023/12/02 23:45:23 by achubuko         ###   ########.fr       */
+/*   Updated: 2023/12/03 18:03:15 by asargsya         ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 #include "ft_utils.h"
@@ -25,3 +25,20 @@ size_t	ft_strlen(char *s)
 		l++;
 	return (l);
 }
+int ft_str_is_numeric(char *str)
+{
+	int i;
+
+	i = 0;
+	if (str[i] == '\0')
+		return (0);
+	while (str[i] != '\0')
+	{
+		if (str[i] < '0' || str[i] > '9')
+			return (0);
+		i++;
+	}
+	if (str[0] == '-')
+		return (-1);
+	return (1);
+}