ajout des fonctions atol free_tab et isnumber

srcs/ft_any.c

@@ -10,6 +10,12 @@
 /*                                                                            */
 /* ************************************************************************** */
 
+/*
+** i don't understand the purpose of this function...
+** it takes a 2D array, and for each array it checks
+** if a function given in parameters is true or false
+*/
+
 #include "libft.h"
 
 int		ft_any(char **tab, int (*f)(char*))