From 9969128e9d03ec2b5fd069787d38fb112b279dc2 Mon Sep 17 00:00:00 2001
From: Nilesh Payghan <26365396+NileshPayghan@users.noreply.github.com>
Date: Wed, 4 Oct 2017 10:45:25 +0530
Subject: [PATCH] Add files via upload

---
 _readme.swp    | Bin 0 -> 12288 bytes
 library.cpp    | 228 +++++++++++++++++++++++++++++++++++++++++++++++++
 library.so     | Bin 0 -> 14320 bytes
 readme         |   8 ++
 sharedheader.h |  31 +++++++
 user           | Bin 0 -> 9264 bytes
 user.cpp       |  43 ++++++++++
 7 files changed, 310 insertions(+)
 create mode 100644 _readme.swp
 create mode 100644 library.cpp
 create mode 100644 library.so
 create mode 100644 readme
 create mode 100644 sharedheader.h
 create mode 100644 user
 create mode 100644 user.cpp

diff --git a/_readme.swp b/_readme.swp
new file mode 100644
index 0000000000000000000000000000000000000000..56350be33b53ec010cc9d00bcadb5925938ba70a
GIT binary patch
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diff --git a/library.cpp b/library.cpp
new file mode 100644
index 0000000..7ebba19
--- /dev/null
+++ b/library.cpp
@@ -0,0 +1,228 @@
+///////////////////////////////////////////////////////////////////////////////////////////////////////
+//Name:
+//Modified: 2017
+//Author: Nilesh Payghan
+//Input:
+//output:
+//Description:
+////////////////////////////////////////////////////////////////////////////////////////////////////////
+
+#include<iostream>
+#include<stdlib.h>
+
+#include"sharedheader.h"
+
+
+SinglyLinkedList::SinglyLinkedList()
+{
+	head=NULL;
+}
+
+/////////////////////////////////////////////////////////////////////////////////////////////
+void SinglyLinkedList::InsertFirst(int data)
+{
+
+	PNODE newn=NULL;
+	newn=(PNODE)malloc(sizeof(NODE));
+	
+	//copy data to node
+	newn->data=data;
+	//copy the address of head node of linked list into newn->next
+	newn->next=head;
+	//copy the address of newn element into *head
+	head=newn;
+}
+//////////////////////////////////////////////////////////////////////////////////////////////
+
+void SinglyLinkedList::InsertLast(int data)
+{
+	
+	PNODE newn=NULL;
+	PNODE temp=head;
+	newn=(PNODE)malloc(sizeof(NODE));
+	if(newn==NULL)
+	{
+		return;
+	}
+	newn->data=data;
+	newn->next=NULL;
+	//if linked is empty
+	if(head==NULL)
+	{
+		head=newn;
+	}
+	//if linked list contains at least single element
+	else
+	{
+		//go till end of linked list
+		while(temp->next!=NULL)
+		{
+			temp=temp->next;
+		}
+		//copy address of newn into end of the linked list
+		temp->next=newn;
+	}
+}
+/////////////////////////////////////////////////////////////////////////////////////////////
+void SinglyLinkedList::Display()
+{
+	PNODE first=head;
+	//traversing the whole linked list elements
+	while(first!=NULL)
+	{
+		cout<<(first->data)<<endl;
+		first=first->next;
+	}
+}
+////////////////////////////////////////////////////////////////////////////////////////////
+int SinglyLinkedList::llCount()
+{
+if(head==NULL)
+	return 0;
+int cnt=0;
+PNODE temp=head;
+	//traversing the whole linked list elements
+	while(temp!=NULL)
+	{
+		temp=temp->next;
+		cnt++;
+	}
+return cnt;
+}
+///////////////////////////////////////////////////////////////////////////////////////////
+void SinglyLinkedList::InsertAtPosition(int data,int pos)
+{
+if(pos<=0 || pos>(llCount()+1))
+	return;
+if(head==NULL && pos>1)
+	return;
+	
+	int i=1;
+	PNODE newn=NULL;
+	PNODE temp=head;
+	newn=(PNODE)malloc(sizeof(NODE));
+	if(newn==NULL)
+	{
+		return;
+	}
+
+	newn->data=data;
+	newn->next=NULL;
+	if(temp==NULL && pos==1)
+	{
+		temp=newn;
+		newn->next=NULL;
+	}
+	else
+	{
+		while(i<pos-1 && temp->next!=NULL)
+		{	
+			temp=temp->next;
+			i++;
+		}
+		newn->next=temp->next;
+		temp->next=newn;
+	}
+}
+////////////////////////////////////////////////////////////////////////////////////
+
+void SinglyLinkedList::DisplayN(int no)
+{
+if(head==NULL || no<=0)
+	return;
+PNODE first=head;
+	//traversing the whole linked list elements
+	while(first!=NULL && no>0)
+	{
+		cout<<(first->data)<<endl;
+		first=first->next;
+		no--;
+	}
+}
+/*////////////////////////////////////////////////////////////////////////////////
+void SinglyLinkedList::DisplayReverse()
+{
+	PNODE first=head;
+if(first==NULL)
+	return;
+	// recursive call to the function
+		first=first->next;
+		DisplayReverse();
+		cout<<(first->data)<<endl;
+}
+*//////////////////////////////////////////////////////////////////////////
+void SinglyLinkedList::DeleteFirst()
+{
+	PNODE temp=head;
+	if(temp==NULL)
+		return;
+	head=temp->next;
+	temp->next=NULL;
+	delete(temp);
+}
+//////////////////////////////////////////////////////////////////////////
+void SinglyLinkedList::DeleteLast()
+{
+	PNODE temp=head;
+	PNODE temp2=NULL;
+	if(temp==NULL)
+		return;
+	if(temp->next==NULL)
+	{
+		delete(temp);
+		head=NULL;
+	}
+	else
+	{
+		while(temp->next->next!=NULL)
+		{
+			temp=temp->next;
+		}
+		temp2=temp->next;
+		temp->next=NULL;
+		delete(temp2);
+	}
+}
+///////////////////////////////////////////////////////////////////////////////
+void SinglyLinkedList::DeleteAll()
+{
+	if(head==NULL)
+		return;
+	PNODE temp=head;
+	delete(temp);
+	head=NULL;
+}
+///////////////////////////////////////////////////////////////////////////////
+void SinglyLinkedList::DeleteNode(int data)
+{
+	PNODE temp=head;
+	PNODE temp2=head;
+	if(head==NULL)
+		return;
+	while(temp->next!=NULL)
+	{
+		if(temp->data==data)
+			break;
+		temp2=temp;
+		temp=temp->next;
+	}
+	if(temp->data==data)
+	{
+		temp2=temp->next;
+		temp->next=NULL;
+		delete(temp);
+	}
+}
+extern "C"
+{
+	SinglyLinkedList* create()
+	{
+		return new SinglyLinkedList;
+	}
+	void destroy(SinglyLinkedList* p)
+	{
+		delete p;
+	}
+}
+
+
diff --git a/library.so b/library.so
new file mode 100644
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diff --git a/readme b/readme
new file mode 100644
index 0000000..85dd34d
--- /dev/null
+++ b/readme
@@ -0,0 +1,8 @@
+command too create .so file:
+        g++ -fPIC -shared library.cpp -o library.so
+
+command t create executable for client program
+        g++ user.cpp -ldl -o user
+
+after executing this command use executable : ./user
+                                                                                                                                               
\ No newline at end of file
diff --git a/sharedheader.h b/sharedheader.h
new file mode 100644
index 0000000..852122c
--- /dev/null
+++ b/sharedheader.h
@@ -0,0 +1,31 @@
+#include<iostream>
+#include<stdlib.h>
+using namespace std;
+typedef struct node
+{
+int data;
+struct node* next;
+}NODE,*PNODE,**PPNODE;
+
+
+class SinglyLinkedList
+{
+private:
+	PNODE head;
+public:
+	SinglyLinkedList();
+	void InsertFirst(int);
+	void InsertLast(int);
+	void InsertAtPosition(int,int);
+	void Display();
+	void DisplayN(int);
+	//void DisplayReverse();
+	//void DisplayForward();//recursively 
+	int llCount();
+
+	void DeleteFirst();
+	void DeleteAtPosition(int);
+	void DeleteLast();
+	void DeleteAll();
+	void DeleteNode(int);
+};
\ No newline at end of file
diff --git a/user b/user
new file mode 100644
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diff --git a/user.cpp b/user.cpp
new file mode 100644
index 0000000..fb53f97
--- /dev/null
+++ b/user.cpp
@@ -0,0 +1,43 @@
+#include<iostream>
+#include<stdlib.h>
+
+#include"sharedheader.h"
+#include<dlfcn.h>
+int main()
+{
+	
+	//SinglyLinkedList sll;
+	void* p=NULL;
+	SinglyLinkedList* ptr=NULL;
+	SinglyLinkedList*(*fp1)()=NULL;
+	void (*fp2)(SinglyLinkedList*)=NULL;
+	p=dlopen("library.so",RTLD_LAZY);
+	if(!p)
+	{
+		cout<<"unable to load library";
+		return -1;
+	}
+	fp1=(SinglyLinkedList*(*)())dlsym(p,"create");
+	fp2=(void(*)(SinglyLinkedList*))dlsym(p,"destroy");
+	ptr=fp1();
+	cout<<ptr;
+
+	ptr->InsertFirst(10);
+	ptr->InsertLast(20);
+	ptr->InsertLast(20);
+	ptr->InsertLast(20);
+	ptr->InsertAtPosition(30,2);
+	ptr->DeleteFirst();
+	ptr->Display();
+	//ptr->DeleteLast();
+	//ptr->DisplayN(2);
+	ptr->DeleteNode(20);
+	//ptr->DeleteAll();
+	ptr->Display();	
+	fp2(ptr);
+	dlclose(p);
+
+cout<<"main";
+
+return 0;
+}