diff --git a/Makefile b/Makefile
index bc6ab2e..2a395e6 100644
--- a/Makefile
+++ b/Makefile
@@ -3,10 +3,10 @@
 #                                                         :::      ::::::::    #
 #    Makefile                                           :+:      :+:    :+:    #
 #                                                     +:+ +:+         +:+      #
-#    By: tmaze <marvin@42.fr>                       +#+  +:+       +#+         #
+#    By: tmaze <tmaze@student.42.fr>                +#+  +:+       +#+         #
 #                                                 +#+#+#+#+#+   +#+            #
-#    Created: 2018/04/04 10:51:59 by tmaze             #+#    #+#              #
-#    Updated: 2018/04/07 11:42:48 by tmaze            ###   ########.fr        #
+#    Created: 2018/04/07 12:47:06 by tmaze             #+#    #+#              #
+#    Updated: 2018/04/07 12:47:09 by tmaze            ###   ########.fr        #
 #                                                                              #
 #******************************************************************************#
 
@@ -51,7 +51,8 @@ SRCS =	\
 		ft_strdel.c   \
 		ft_strclr.c   \
 		ft_striter.c  \
-		ft_striteri.c
+		ft_striteri.c \
+		ft_strmap.c
 OBJS = $(SRCS:.c=.o)
 INCLS = -I.
 
diff --git a/ft_strmap.c b/ft_strmap.c
new file mode 100644
index 0000000..3dfda7a
--- /dev/null
+++ b/ft_strmap.c
@@ -0,0 +1,27 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_strmap.c                                        :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: tmaze <tmaze@student.42.fr>                +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2018/04/07 12:35:16 by tmaze             #+#    #+#             */
+/*   Updated: 2018/04/07 13:04:23 by tmaze            ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "libft.h"
+
+char	*ft_strmap(char const *s, char (*f)(char))
+{
+	char	*ret;
+	size_t	i;
+	size_t	s_len;
+
+	i = -1;
+	s_len = ft_strlen(s);
+	ret = ft_strnew(s_len);
+	while (++i < s_len)
+		ret[i] = (*f)(s[i]);
+	return (ret);
+}