update all

functions.c

@@ -0,0 +1,117 @@
+#include "jac.h"
+
+void multiply (struct n *head, struct n *end)
+{
+	double result;
+
+    if (head->next == end || head->next == NULL)
+        return;
+
+    else {
+
+		if ((head->next)->op == '*') {
+			result = (head->next)->value * head->value;
+			head->value = result;
+			del_next(head);
+			multiply(head, end);
+		}
+
+		else
+			multiply(head->next, end);
+	}
+}
+
+void divide (struct n *head, struct n *end) {
+
+	double result;
+
+    if (head->next == end || head->next == NULL)
+        return;
+
+    else {
+
+		if ((head->next)->op == '/') {
+			result = (head->next)->value / head->value;
+			head->value = result;
+			del_next(head);
+			divide(head, end);
+		}
+
+		else
+			divide(head->next, end);
+	}
+}
+
+void add (struct n *head, struct n *end) {
+
+	double result;
+
+    if (head->next == end || head->next == NULL)
+        return;
+
+    else {
+
+		if ((head->next)->op == '+' || (head->next)->op == '-') {
+
+			if ((head->next)->op == '+')
+       	    	result = (head->next)->value +1 * head->value;
+
+            else {
+       			result = (head->next)->value -1 * head->value;
+       		}
+
+			head->value = result;
+			del_next(head);
+			add(head, end);
+		}
+
+		else
+			add(head->next, end);
+	}
+}
+
+void del_next (struct n *before_del_next) {
+
+    struct n *temp;
+    temp = before_del_next->next;
+    before_del_next->next = temp->next;
+    free(temp);
+
+}
+
+unsigned long factorial(unsigned long f) {
+
+    if ( f == 0 ) 
+        return 1;
+    return(f * factorial(f - 1));
+}
+
+int bin_dec(long long n) {
+
+    int dec = 0, i = 0, rem;
+
+    while (n != 0) {
+        rem = n % 10;
+        n /= 10;
+        dec += rem * pow(2, i);
+        ++i;
+    }
+    return dec;
+}
+
+long long dec_bin(int n) {
+
+    long long bin = 0;
+    int rem, i;
+
+    rem = i = 1;
+
+    while (n != 0) {
+        rem = n % 2;
+        n /= 2;
+        bin += rem * i;
+        i *= 10;
+    }
+
+    return bin;
+}

jac.h

@@ -0,0 +1,24 @@
+#include <stdlib.h>
+#include <math.h>
+
+#define MAX 1000
+
+struct n{
+	double value;
+	char op;
+	struct n *next;
+	char unary;
+};
+
+void add_item(struct n **ptr, double data, char s);
+void print_num(double x);
+void remove_spaces(char *str);
+void multiply (struct n *head, struct n *end);
+void divide (struct n *head, struct n *end);
+void add (struct n *head, struct n *end);
+void calculate (struct n *head, struct n *end, _Bool *operation);
+void del_next(struct n *head);
+void unary (struct n *head, struct n *end);
+unsigned long factorial(unsigned long f);
+int bin_dec(long long n);
+long long dec_bin(int n);