Introduction to C/C++

[c]
#include <stdio.h>
#include <iostream>
#include <cstdio>
#include <unistd.h>
#include <sys/types.h>
#include <sys/ipc.h>
#include <sys/shm.h>
#include <sys/wait.h>
#include <string>
#include <vector>
#include <cstring>
#include <cstdlib>
#include<fstream>
#include <time.h>
// Kutay ZORLU

using namespace std;
void readfile();

vector<string> satirlar(9);
vector<string> sonuc(9);
vector <int> A(16);
vector<int > B(16);
vector<int > C(16);
int main (){

string str = "SOMEload";
double start = clock();

bool okudumu=false;
int fork_id = fork();
while (!okudumu)
{
switch (fork_id) { // forkun durumuna gore asagidaki kodlar gerceklestirilecek

case -1: // -1 hata durumu idi
perror("fork");
return 3;

default:

if(!okudumu){
readfile();
okudumu = true;
}
else{
cout << "babadayım "<<endl;
//wait(0); // let the child finish
C[0] = A[0]*B[0]+ A[1]*B[4] + A[2]*B[8] + A[3]*B[12];
C[1] = A[0]*B[1]+ A[1]*B[5] + A[2]*B[9] + A[3]*B[13];
C[2] = A[0]*B[2]+ A[1]*B[6] + A[2]*B[10] + A[3]*B[14];
C[3] = A[0]*B[3]+ A[1]*B[7] + A[2]*B[11] + A[3]*B[15];
C[4] = A[4]*B[0]+ A[5]*B[4] + A[6]*B[8] + A[7]*B[12];
C[5] = A[4]*B[1]+ A[5]*B[5] + A[6]*B[9] + A[7]*B[13];
C[6] = A[4]*B[2]+ A[5]*B[6] + A[6]*B[10] + A[7]*B[14];
C[7] = A[4]*B[3]+ A[5]*B[7] + A[6]*B[11] + A[7]*B[15];
cout << "DEFAULT 1 içindeuim"<< endl;
}

break;
// break olana kadar default calisiyor

case 0:

//bebe
cout << "CASE 0 içindeyim"<< endl;

if(okudumu){
cout << "C carpti" ;
C[8] = A[8]*B[0]+ A[9]*B[4] + A[10]*B[8] + A[11]*B[12];
C[9] = A[8]*B[1]+ A[9]*B[5] + A[10]*B[9] + A[11]*B[13];
C[10] = A[8]*B[2]+ A[9]*B[6] + A[10]*B[10] + A[11]*B[14];
C[11] = A[8]*B[3]+ A[9]*B[7] + A[10]*B[11] + A[11]*B[15];
C[12] = A[12]*B[0]+ A[13]*B[4] + A[14]*B[8] + A[15]*B[12];
C[13] = A[12]*B[1]+ A[13]*B[5] + A[14]*B[9] + A[15]*B[13];
C[14] = A[12]*B[2]+ A[13]*B[6] + A[14]*B[10] + A[15]*B[14];
C[15] = A[12]*B[3]+ A[13]*B[7] + A[14]*B[11] + A[15]*B[15];
}

break;
}
}

//
//
//
cout << str << endl;
//
double finish = clock();

int sure_time = (double(finish-start)/CLOCKS_PER_SEC);
cout << "SURE : "<<sure_time << endl;
return 1;
}

void readfile(){

ifstream myfile,myfile_2;

myfile.open ("veri.dat");

//
char output[100];
int i=0;
if (myfile.is_open()) {
while (!myfile.eof()) {
//
myfile.getline(output,100) ;
cout << output << "[" << i << "]" <<endl;
i++;

}
}
myfile.close();

myfile_2.open ("veri.dat");

//

i=0; char xx[100];
if (myfile_2.is_open())
{
while (!myfile_2.eof())
{
if(i<1) { myfile_2 >> xx;}
else
{
myfile_2 >> A[i-1];
cout << "A["<<i-1 << "]:" << A[i-1] <<endl;
if((i-1)>15)
{
B[i-17] = A[i-1]; //b2 4
cout <<"B["<<i-17<< "]" << B[i-17]<< endl;
}

}
i++;
}
}
myfile_2.close();
//myfile << "Writing this to a file.\n";
}

[/c]

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[c]

#include <stdio.h>

#include <iostream>

#include <cstdio>

#include <unistd.h>

#include <sys/types.h>

#include <sys/ipc.h>

#include <sys/shm.h>

#include <sys/wait.h>

#include <string>

#include <vector>

#include <cstring>

#include <cstdlib>

#include<fstream>

#include <time.h>

// Kutay ZORLU

using namespace std;

void readfile();

vector<string> satirlar(9);

vector<string> sonuc(9);

vector <int> A(16);

vector<int > B(16);

vector<int > C(16);

int main (){

string str = "SOMEload";

double start = clock();

bool okudumu=false;

int fork_id = fork();

while (!okudumu)

{

switch (fork_id) { // forkun durumuna gore asagidaki kodlar gerceklestirilecek

case -1: // -1 hata durumu idi

perror("fork");

return 3;

default:

if(!okudumu){

readfile();

okudumu = true;

}

else{

cout << "babadayım "<<endl;

//wait(0); // let the child finish

C[0] = A[0]*B[0]+ A[1]*B[4] + A[2]*B[8] + A[3]*B[12];

C[1] = A[0]*B[1]+ A[1]*B[5] + A[2]*B[9] + A[3]*B[13];

C[2] = A[0]*B[2]+ A[1]*B[6] + A[2]*B[10] + A[3]*B[14];

C[3] = A[0]*B[3]+ A[1]*B[7] + A[2]*B[11] + A[3]*B[15];

C[4] = A[4]*B[0]+ A[5]*B[4] + A[6]*B[8] + A[7]*B[12];

C[5] = A[4]*B[1]+ A[5]*B[5] + A[6]*B[9] + A[7]*B[13];

C[6] = A[4]*B[2]+ A[5]*B[6] + A[6]*B[10] + A[7]*B[14];

C[7] = A[4]*B[3]+ A[5]*B[7] + A[6]*B[11] + A[7]*B[15];

cout << "DEFAULT 1 içindeuim"<< endl;

}

break;

// break olana kadar default calisiyor

case 0:

//bebe

cout << "CASE 0 içindeyim"<< endl;

if(okudumu){

cout << "C carpti" ;

C[8] = A[8]*B[0]+ A[9]*B[4] + A[10]*B[8] + A[11]*B[12];

C[9] = A[8]*B[1]+ A[9]*B[5] + A[10]*B[9] + A[11]*B[13];

C[10] = A[8]*B[2]+ A[9]*B[6] + A[10]*B[10] + A[11]*B[14];

C[11] = A[8]*B[3]+ A[9]*B[7] + A[10]*B[11] + A[11]*B[15];

C[12] = A[12]*B[0]+ A[13]*B[4] + A[14]*B[8] + A[15]*B[12];

C[13] = A[12]*B[1]+ A[13]*B[5] + A[14]*B[9] + A[15]*B[13];

C[14] = A[12]*B[2]+ A[13]*B[6] + A[14]*B[10] + A[15]*B[14];

C[15] = A[12]*B[3]+ A[13]*B[7] + A[14]*B[11] + A[15]*B[15];

}

break;

}

cout << str << endl;

double finish = clock();

int sure_time = (double(finish-start)/CLOCKS_PER_SEC);

cout << "SURE : "<<sure_time << endl;

return 1;

}

void readfile(){

ifstream myfile,myfile_2;

myfile.open ("veri.dat");

char output[100];

int i=0;

if (myfile.is_open()) {

while (!myfile.eof()) {

myfile.getline(output,100) ;

cout << output << "[" << i << "]" <<endl;

i++;

}

myfile.close();

myfile_2.open ("veri.dat");

i=0; char xx[100];

if (myfile_2.is_open())

{

while (!myfile_2.eof())

{

if(i<1) { myfile_2 >> xx;}

else

{

myfile_2 >> A[i-1];

cout << "A["<<i-1 << "]:" << A[i-1] <<endl;

if((i-1)>15)

{

B[i-17] = A[i-1]; //b2 4

cout <<"B["<<i-17<< "]" << B[i-17]<< endl;

}

i++;

}

myfile_2.close();

//myfile << "Writing this to a file.\n";

}

[/c]

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