#include <iostream>
#include "matrice.h"
#include <stdlib.h>
using namespace std;

matrice::matrice(int l,int c, int** buf){
	this->l=l;
	this->c=c;
	this->buf=new int*[l];
	for(int i=0;i<l;i++){
		this->buf[i]=new int[c];
		for(int j=0;j<c;j++)
			this->buf[i][j]=buf[i][j];
	}
}

matrice::matrice(const matrice& m)
{
	*this=m;
}

void matrice::afis() const{
	cout<<"Nr linii: "<<l<<endl<<"Nr. coloane: "<<c<<endl;
	for(int i=0;i<l;i++){
		for(int j=0;j<c;j++){
			cout<<buf[i][j]<<" ";
		}
		cout<<endl;
	}
}

matrice::~matrice(){
	if(buf!=NULL)
		{
			for(int i=0;i<l;i++)
				if(buf[i]!=NULL)
					delete[]buf[i];
			delete[] buf;
		}
}

matrice& matrice::operator=(const matrice& m){
	l=m.l;
	c=m.c;
	buf=new int*[l];
	for(int i=0;i<l;i++){
		buf[i]=new int[c];
		for(int j=0;j<c;j++)
			buf[i][j]=m.buf[i][j];
	}
	return *this;
}

matrice& matrice::operator+=(const matrice& m){
	if (this->buf== NULL || m.buf==NULL)
		{
			cout<<"Adunarea nu a fost facuta!"<<endl;
			return *this;
 		}
	if (l!=m.l || m.c!=c)
		{
			cout<<"Adunarea nu a fost facuta!"<<endl;
			return *this;
 		}
	for(int i=0;i<l;i++)
		for(int j=0;j<c;j++)
			buf[i][j]+=m.buf[i][j];
	return *this;
}























#include <iostream>
#include "matrice.h"
using namespace std;

const matrice operator+(const matrice& a,const matrice& b){
	if (a.buf== NULL || b.buf==NULL)
		{
			cout<<"Adunarea nu a fost facuta!"<<endl;
			return matrice();
 		}
	if (a.l!=b.l || a.c!=b.c)
		{
			cout<<"Adunarea nu a fost facuta!"<<endl;
			return matrice();
 		}
 	int **v;
	v=new int*[3];
	for(int i=0;i<3;i++){
		v[i]=new int[3];
	}
 	matrice m(a.l,b.c,v);
	for(int i=0;i<a.l;i++)
		for(int j=0;j<b.c;j++)
			m.buf[i][j]=a.buf[i][j]+b.buf[i][j];
	return m;
}

bool operator==(const matrice&a,const matrice&b){
	if (a.buf== NULL || b.buf==NULL)
		{
			cout<<"Compararea nu poate fi facuta!"<<endl;
			return false;
 		}
	if (a.l!=b.l || a.c!=b.c)
		{
			cout<<"Matricile au ordin diferit. Compararea nu poate fi facuta!"<<endl;
			return false;
 		}
 		for(int i=0;i<a.l;i++)
		 for(int j=0;j<b.c;j++)
			if(a.buf[i][j]!=b.buf[i][j])
				return false;
		return true;
}

bool operator!=(const matrice&a,const matrice&b){
	if (a.buf== NULL || b.buf==NULL)
		{
			cout<<"Compararea nu poate fi facuta!"<<endl;
			return false;
 		}
	if (a.l!=b.l || a.c!=b.c)
		{
			cout<<"Matricile au ordin diferit. Compararea nu poate fi facuta!"<<endl;
			return true;
 		}
 		for(int i=0;i<a.l;i++)
		 for(int j=0;j<b.c;j++)
			if(a.buf[i][j]!=b.buf[i][j])
				return true;
		return false;
}

int main(int argc, char** argv) {
	int **v;
	v=new int*[3];
	for(int i=0;i<3;i++){
		v[i]=new int[3];
		for(int j=0;j<3;j++)
			v[i][j]=i+j;
	}
	matrice m1(3,3,v);
	m1.afis();
	system("PAUSE");
	system("CLS");

	matrice m2;
	m2.afis();
	system("PAUSE");
	m2=m1;
	m2.afis();
	system("PAUSE");
	system("CLS");

	m2+=m1;
	m2.afis();
	system("PAUSE");
	system("CLS");

	matrice m3;
	m3=(m2+m1);
	m3.afis();
	system("PAUSE");
	system("CLS");

	if (m1==m2){
		cout<<"Egale!"<<endl;
	}
	else
		cout<<"Nu egale!"<<endl;
	system("PAUSE");
	system("CLS");

	if (m2==m2){
		cout<<"Egale!"<<endl;
	}
	else
		cout<<"Nu egale!"<<endl;
	system("PAUSE");
	system("CLS");

	if (m1!=m2){
		cout<<"Diferite!"<<endl;
	}
	else
		cout<<"Nu diferite!"<<endl;
	system("PAUSE");
	system("CLS");

	if (m2!=m2){
		cout<<"Diferite!"<<endl;
	}
	else
		cout<<"Nu diferite!"<<endl;
	system("PAUSE");
	system("CLS");
	return 0;
}





















class matrice{
	int l,c;
	int **buf;
	public:
		matrice(int l=0,int c=0 ,int **buf=NULL);
		void afis()const; //sau suprascriu operator <<
		matrice(const matrice&);
		matrice& operator=(const matrice&);
		matrice& operator+=(const matrice&);//testare dimensiune
		friend const matrice operator+(const matrice&,const matrice&);
		friend bool operator==(const matrice&,const matrice&);
		friend bool operator!=(const matrice&,const matrice&);
		~matrice();
};