fix ft_sqrt

Makefile

@@ -12,7 +12,7 @@ _DEP	=	libft.h
 DEPS	=	$(_DEP:%.h=$(IDIR)/%.h)
 
 CFLAGS	=	-I$(IDIR)
-CFLAGS +=	-Wall -Wextra -Werror -g3
+CFLAGS +=	-Wall -Wextra -Werror -g
 
 SRCS	=	ft_memset.c \
 			ft_bzero.c \

includes/libft.h

@@ -132,7 +132,7 @@ int ft_sign(int i);
 int ft_fsign(double i);
 double ft_pow(double base, int exponent);
 double ft_round(double x);
-double ft_sqrt(double i);
+double ft_sqrt(double i, double precision);
 void ft_free_tab(char **tab);
 
 int ft_arrint(int *intarr, int comp, size_t size);

srcs/ft_atoll_superscript.c

@@ -32,8 +32,10 @@ long long ft_atoll_superscript(const char *str)
         int digit;
         if (superscript_size == 2)
         {
-            // ² (U+00B2) or ³ (U+00B3)
+            // ¹ (U+00B9), ² (U+00B2), or ³ (U+00B3)
-            if ((uint8_t)str[i + 1] == 0xB2)
+            if ((uint8_t)str[i + 1] == 0xB9)
+                digit = 1;
+            else if ((uint8_t)str[i + 1] == 0xB2)
                 digit = 2;
             else if ((uint8_t)str[i + 1] == 0xB3)
                 digit = 3;

srcs/ft_sqrt.c

@@ -4,17 +4,13 @@
  * return the square root of nb
  * Newton–Raphson method : https://en.wikipedia.org/wiki/Newton%27s_method#Use_of_Newton's_method_to_compute_square_roots
  */
-double ft_sqrt(double x)
+double ft_sqrt(double x, double precision)
 {
-	double precision;
-
 	if (x < 0)
 		return -1; // handle negative numbers
 	if (x == 0)
 		return 0;
 
-	precision = 0.00001;
-
 	// Newton-Raphson
 	double guess = x;
 	double prev_guess;
@@ -22,11 +18,11 @@ double ft_sqrt(double x)
 	{
 		prev_guess = guess;
 		guess = (guess + x / guess) / 2.0;
-	} while (prev_guess - guess > precision);
+	} while (ft_fabs(prev_guess - guess) > precision);
 	return guess;
 
 	// // binary search
-	// double low = 0
+	// double low = 0;
 	// double high = x;
 	// double mid;
 	// while (high - low > precision)