refac: handle when invalid real number given

Author: takumihara

scenes_bonus/err_real_invalid.rt

@@ -0,0 +1,7 @@
+A  0.1      255,255,255
+L  -5,5,-5  1         255,255,255
+C  0,0,-10    0.3,-0.1,1    30
+# C  0,10,0    0,-1,-0    100
+
+sp 6,0.5,1       2.0          176,176,176
+ch 10a 10 255,255,255 0,0,255

scenes_bonus/err_real_overflow.rt

@@ -0,0 +1,7 @@
+A  0.1      255,255,255
+L  -5,5,-5  1         255,255,255
+C  0,0,-10    0.3,-0.1,1    30
+# C  0,10,0    0,-1,-0    100
+
+sp 6,0.5,1       2.0          176,176,176
+ch 1000000000000000000000000000000000 50 255,255,255 0,0,255

src/rt_params.c

@@ -1,5 +1,4 @@
 #include "../include/scene.h"
-#include "../libft/libft.h"
 
 char	*load_ambient(t_program *p, char **info)
 {
@@ -98,12 +97,12 @@ char	*load_checker(t_program *p, char **info)
 	if (object->material.flag == (1 << MFLAG_CHECKER))
 		return (ERR_DUPLICATE_MATERIAL);
 	object->material.flag |= (1 << MFLAG_CHECKER);
-	object->material.checker_width = ft_atoi(info[1]);
-	if (!(0 <= object->material.checker_width))
+	if (!(atoi_strict(info[0], &object->material.checker_width) && 0 <= object->material.checker_width))
 		return (ERR_MISCONFIGURED_CHECKER);
-	object->material.checker_height = ft_atoi(info[1]);
-	if (!(0 <= object->material.checker_height))
+	printf("%d\n", object->material.checker_width);
+	if (!(atoi_strict(info[1], &object->material.checker_height) && 0 <= object->material.checker_height))
 		return (ERR_MISCONFIGURED_CHECKER);
+	printf("%d\n", object->material.checker_height);
 	if (!(get_color_from_str(info[2], &c) && check_color_range(c, 0.0, 255.0)))
 		return (ERR_MISCONFIGURED_CHECKER);
 	object->material.checker_col1 = color_mult(c, (double)1/255);

src/scene.c

@@ -89,7 +89,8 @@ static void	read_rt_file(char *filename, t_program *p)
 		if (err != NO_ERR)
 			break ;
 	}
-	err = check_lack_of_identifier(ident_flag);
+	if (err == NO_ERR)
+		err = check_lack_of_identifier(ident_flag);
 	free(line);
 	x_close(fd);
 	if (err != NO_ERR)

libft/ft_atoi.c renamed to utils/atoi_strict.c

@@ -1,6 +1,6 @@
-#include <limits.h>
+#include <stdbool.h>
 
-int	ft_atoi(char *str)
+bool	atoi_strict(char *str, int *dst)
 {
 	long long	rtn;
 	int			sign;
@@ -13,16 +13,17 @@ int	ft_atoi(char *str)
 		sign = -1;
 	if (*str == '+' || *str == '-')
 		str++;
+	if (*str == '\0')
+		return (false);
 	while ('0' <= *str && *str <= '9')
 	{
 		if ((rtn * 10 + *str - '0') / 10 != rtn)
-		{
-			if (sign == 1)
-				return ((int)(LONG_MAX));
-			return ((int)(LONG_MIN));
-		}
+			return (false);
 		rtn = rtn * 10 + *str - '0';
 		str++;
 	}
-	return ((int)(sign * rtn));
+	*dst = (int)(sign * rtn);
+	if (*str == '\0')
+		return (true);
+	return (false);
 }

utils/utils.h

@@ -14,5 +14,6 @@ void	exit_with_error_message(const char *msg);
 bool	ft_strtod(const char *s, double *val);
 size_t	count_2d_array(void **array);
 void	free_2d_array(void ***array);
+bool	atoi_strict(char *str, int *dst);
 
 #endif