cAn some one help me and explain why this error occurs

[masterjiraya]

I have here the the cpp file named as clock

#include <iostream>
#include <fstream>
#include <string>
using namespace std;

#include <cstdlib>
int main() {
// ofstream constructor opens file
ofstream outClientFile("clients.dat", ios::out);
if(!outClientFile) {
cerr << "File could not be opened" << endl;
exit(1);
}
cout << "Enter the account, name, and balance.\n"
<< "Enter end-of-file to end input.\n? ";
int account;
string name;
double balance;
while(cin >> account >> name >> balance) {
outClientFile << account << ' ' << name
<< ' ' << balance << '\n';
cout << "? ";
}

return 0; // ofstream destructor closes file

}

and the name as timefetch.cpp

#include <iostream>
#include <fstream>
#include <string>
#include <ctime>
#include <cstdlib>

using namespace std;
int main() {
// ofstream constructor opens file
ofstream outClientFile("bible13.txt", ios::out);
if(!outClientFile) {
cerr << "File could not be opened" << endl;
exit(1);
}
clock_t start = clock();
for (int i = 0; i<50000; i+=5000)
{
	cout<< i << endl;
}
clock_t end = clock();
double runningTime = (double) (end - start) / (double) CLOCKS_PER_SEC;
cout<<"The running Time is"<<runningTime;
system ("pause");
return 0;
}

the result are 2 errors naming:

Error 1 error LNK2005: _main already defined in Fetch.obj Clock.obj
Error 2 fatal error LNK1169: one or more multiply defined symbols found C:\Documents and Settings\Aldrich Uy\My Documents\Visual Studio 2005\Projects\clock sort\Debug\clock sort.exe 1

what should I do pls. help me

[Ancient Dragon]

you can't have the same function name in two or more *.cpp files and link them together.

>>what should I do pls.
Name one of the functions something else.

[masterjiraya]

you can't have the same function name in two or more *.cpp files and link them together.

>>what should I do pls.
Name one of the functions something else.

well what i do know is transfer the contents of the main of clock.cpp to timefetch.cpp

and here is the code:

#include <iostream>
#include <fstream>
#include <string>
#include <ctime>
#include <cstdlib>

using namespace std;
int main() {
// ofstream constructor opens file
ofstream outClientFile("bible13.txt", ios::out);
if(!outClientFile) {
cerr << "File could not be opened" << endl;
exit(1);
}
clock_t start = clock();

for (int i = 1;  i<=5000; i++)
{
	
	cout<< i << endl;
	
}
clock_t end = clock();
double runningTime = (double) (end - start) / (double) CLOCKS_PER_SEC;
cout<<"The running Time is"<<runningTime;

system ("pause");


cout << "Enter the account, name, and balance.\n"
<< "Enter end-of-file to end input.\n? ";
int account;
string name;
double balance;
while(cin >> account >> name >> balance) {
outClientFile << account << ' ' << name
<< ' ' << balance << '\n';
cout << "? ";
}
return 0;
}

but i still have problem with this....
the timefetch.cpp result is counting the running time from 0 to 50 thousand although the result is there correctly posted... i want to post it this way...
for every count of 5000 there the result is posted and I don't want to see other numbers to posted and show the result except ( 5000, 10000, 15000, 20000, 25000, 30000, 35000, 40000, 45000 & 50000)
for example the result must show:
5000
the running time is 1.09
10000
the running time is 2.012
.
.
.
50000
the running time is 9.026

can you do something about it?

[n1337]

can you do something about it?

Well, you could do something about it... In your for loop, do something like:

if (i%5000 == 0)
{
     end = clock();
     runningTime = (double) (end - start) / (double) CLOCKS_PER_SEC;

     cout << i << endl << "the running time is " << runningTime << endl;
}

[masterjiraya]

Well, you could do something about it... In your for loop, do something like:

if (i%5000 == 0)
{
     end = clock();
     runningTime = (double) (end - start) / (double) CLOCKS_PER_SEC;

     cout << i << endl << "the running time is " << runningTime << endl;
}

you place it inside the for loop?

[n1337]

Yes but you will need to change around some declarations (I.e. end and runningTime need to be declared before the loop). Also, I just copied your code from outside the loop because you said it was working, so if you move it inside the loop, you no longer need it outside...

Note: I haven't tested any of your code or my own...I don't have a compiler on this computer. Should be ok though...gl

[masterjiraya]

Yes but you will need to change around some declarations (I.e. end and runningTime need to be declared before the loop). Also, I just copied your code from outside the loop because you said it was working, so if you move it inside the loop, you no longer need it outside...

Note: I haven't tested any of your code or my own...I don't have a compiler on this computer. Should be ok though...gl

According to my understanding... runningTime must be declared as double but I don't know what to declare for end in the end=clock();
because I think this could clash due to redifinition

and yet when I put the clock_t as declaration before the word end the result of time is not increasing and yet they are all the same.... what I mean is every reach of range of 5000 the result is posted....

[n1337]

lol dont redefine stuff. I said move the declarations around. To before where you use it. Before the loop. You already have the working code (I assume since that is what you said in a previous post). So move the declaration of end and running time before the loop, then just use the variables within the conditional statement as I provided...

[masterjiraya]

lol dont redefine stuff. I said move the declarations around. To before where you use it. Before the loop. You already have the working code (I assume since that is what you said in a previous post). So move the declaration of end and running time before the loop, then just use the variables within the conditional statement as I provided...

Hey pal I've figured out that the last parts are almost the same.... is it because of the speed of time allotted?