wip print before solution

Makefile

@@ -117,7 +117,9 @@ run: $(NAME)
 	@echo $(B_PURPLE)"\n---------------------------------------------\n8. run with power 4 \n"$(RESET)
 	-./$(NAME) -d "3x^2 + 2x -7x^4 = x^4"
 	@echo $(B_PURPLE)"\n---------------------------------------------\n9. run with utf8 \n"$(RESET)
-	-./$(NAME) -d "3x² + 2x -7x³ = x³"
+	-./$(NAME) -d "3x² + 2x -7x¹ = x"
+	@echo $(B_PURPLE)"\n---------------------------------------------\n9. run normal \n"$(RESET)
+	-./$(NAME) -d "3x² + 2x -7 = x"
 
 clean:
 	$(RM_OBJS)

headers/computorv1.h

@@ -155,6 +155,7 @@ const char *delta_sign_to_str(e_delta_sign sign);
  */
 
 void print_debug(const char *description, ...);
+void print_before_solution(double *polynom, int max_exponent);
 
 /** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
  * GLOBALS

src/launcher.c

@@ -91,7 +91,7 @@ static void polynom_fill_null(double *polynom, int len)
     int i;
 
     i = 0;
-    while (i < len)
+    while (i <= len)
     {
         polynom[i] = 0.0;
         i++;
@@ -125,14 +125,16 @@ void launch_computorv1(char *input)
     parse(tokens, terms, terms_count_prediction);
 
     // reduce
-    max_exponent = get_max_exponent(terms) + 1;
-    double polynom[max_exponent];
+    max_exponent = get_max_exponent(terms);
+    print_debug("-> max_exponent: %i\n\n", max_exponent); // debug
+    double polynom[max_exponent + 1];
     polynom_g_err = polynom;
     polynom_len_g_err = max_exponent;
     polynom_fill_null(polynom, max_exponent);
     reduce(terms, polynom);
 
     // print before solution
+    print_before_solution(polynom, max_exponent);
 
     // solve
     s_solution solution[1];

src/parser.c

@@ -22,13 +22,15 @@ static e_term_sign get_sign(s_token *tokens, int i, int *token_count)
     {
         *token_count = 1;
     }
-    else if (i == 0) // if most left term, the sign can be ommited for a '+' sign in front of a number or variable
+    else if (i == 0)
     {
+        // if most left term, the sign can be ommited for a '+' sign in front of a number or variable
         *token_count = 0;
         return TERM_PLUS;
     }
-    else if (tokens[i - 1].type == TOKEN_EQUAL) // if first token after 'equal', the sign can be ommited for a '+' sign in front of a number or variable
+    else if (tokens[i - 1].type == TOKEN_EQUAL)
     {
+        // if first token after 'equal', the sign can be ommited for a '+' sign in front of a number or variable
         *token_count = 0;
         return TERM_PLUS;
     }

src/reducer.c

@@ -11,6 +11,7 @@ void reduce(s_term *terms, double *polynom)
     i = 0;
     while (terms[i].position != TERM_END)
     {
+
         // get coefficient with left sign
         tmp = terms[i].coefficient;
         if (terms[i].position == TERM_RIGHT)

src/utils/errors.c

@@ -61,9 +61,9 @@ static void print_context_polynom()
     int i;
 
     i = 0;
-    while (i < polynom_len_g_err)
+    while (i <= polynom_len_g_err)
     {
-        dprintf(STDERR_FILENO, "polynom[%i]: %10g\n", i, polynom_g_err[i]);
+        dprintf(STDERR_FILENO, "polynom[%i]: %c -> %10g\n", i, i + 'a', polynom_g_err[i]);
         i++;
     }
     ft_putchar_fd('\n', STDERR_FILENO);
@@ -72,11 +72,11 @@ static void print_context_polynom()
 static void print_context_solution()
 {
     dprintf(STDERR_FILENO, "delta_sign             : %25s\n", delta_sign_to_str(solution_g_err->delta_sign));
-    dprintf(STDERR_FILENO, "delta_absolute         : %25g\n", solution_g_err->delta_absolute);
+    dprintf(STDERR_FILENO, "delta_absolute         : %25g (|b² - 4ac|)\n", solution_g_err->delta_absolute);
     dprintf(STDERR_FILENO, "first_term_gcd         : %25i\n", solution_g_err->first_term_gcd);
-    dprintf(STDERR_FILENO, "first_term_numerator   : %25i\n", solution_g_err->first_term_numerator);
-    dprintf(STDERR_FILENO, "first_term_denominator : %25i\n", solution_g_err->first_term_denominator);
-    dprintf(STDERR_FILENO, "first_term             : %25g\n", solution_g_err->first_term);
+    dprintf(STDERR_FILENO, "first_term_numerator   : %25i (-b / gcd)\n", solution_g_err->first_term_numerator);
+    dprintf(STDERR_FILENO, "first_term_denominator : %25i (2a / gcd)\n", solution_g_err->first_term_denominator);
+    dprintf(STDERR_FILENO, "first_term             : %25g (-b / 2a)\n", solution_g_err->first_term);
     // dprintf(STDERR_FILENO, "second_term_gcd        : %25g\n", solution_g_err->second_term_gcd);
     // dprintf(STDERR_FILENO, "second_term_numerator  : %25g\n", solution_g_err->second_term_numerator);
     // dprintf(STDERR_FILENO, "second_term_denominator: %25g\n", solution_g_err->second_term_denominator);
@@ -106,10 +106,17 @@ void print_state()
 
 void stop_errors(const char *description, ...)
 {
-    // print context (if debug mode)
+    // print context
+    if (flag_debug_mode)
+    {
         print_state();
+    }
 
+    // print red ERROR
+    if (flag_debug_mode)
+    {
         ft_putstr_fd("\e[1;31mERROR:\e[0m ", STDERR_FILENO);
+    }
 
     // print the formatted description
     va_list args;
@@ -118,7 +125,11 @@ void stop_errors(const char *description, ...)
     va_end(args);
 
     // print the base message
+    if (flag_debug_mode)
+    {
         ft_dprintf(STDERR_FILENO, " (errno[%d] : %s)\n", errno, strerror(errno));
+    }
 
+    // stop program
     exit(EXIT_FAILURE);
 }

src/utils/printer.c

@@ -10,7 +10,46 @@ void print_debug(const char *description, ...)
     // print the formatted description
     va_list args;
     va_start(args, description);
-    // ft_vdprintf(STDOUT_FILENO, description, args); // it's not handling floats for the moment
-    vdprintf(STDOUT_FILENO, description, args);
+    // ft_vdprintf(STDERR_FILENO, description, args); // it's not handling floats for the moment
+    vdprintf(STDERR_FILENO, description, args);
     va_end(args);
 }
+
+void print_before_solution(double *polynom, int max_exponent)
+{
+    int i;
+
+    // reduced form
+    ft_putstr("Reduced form: ");
+    i = max_exponent;
+    printf("%g * x^%i ", ft_fabs(polynom[i]), i);
+    fflush(stdout);
+    i--;
+    while (i >= 0)
+    {
+        if (polynom[i] >= 0)
+        {
+            ft_putchar('+');
+        }
+        else
+        {
+            ft_putchar('-');
+        }
+        printf(" %g * x^%i ", ft_fabs(polynom[i]), i);
+        fflush(stdout);
+        i--;
+    }
+    ft_putstr("= 0\n");
+
+    // // check errors
+    // ft_printf(": ");
+    // ft_printf(": ");
+    // ft_printf(": ");
+
+    // degree
+    ft_printf("Polynomial degree: %i\n", max_exponent);
+    if (max_exponent > 2)
+    {
+        stop_errors("The polynomial degree is strictly greater than 2, I can't solve.\n");
+    }
+}