Thread: Random Line (pls comment)

/*
Random Line 1 - The program copies random line from one file in other.
It is good for servers, where You need a random message to pop-up.
Programming by sikamikaniko
*/
#include<iostream.h>
#include<fstream.h>
#include<time.h>
#include<stdlib.h>

int countln(int ln); // functions prototype

ofstream ptr_write; //pointer to the file, the text will be written
ifstream ptr_read; //pointer to the file, the program will read from

// main function ---

main()
{
int i_ctrln=0;
int ln=0;
int i_gotoln=ln;
char c_ctrln;
char c_joke;


ln=countln(ln); //
srand(time(NULL)); //randomizacion
i_gotoln=rand()%ln; //

ptr_read.open("jokes.txt", ios::in);
while(ptr_read.get(c_ctrln)) // finds the line, that must be copied
{
if(c_ctrln=='\n')
{
i_ctrln++;
}
if(i_ctrln==i_gotoln)
{break;}

}
ptr_write.open("joke.txt", ios:ut);
while(ptr_read.get(c_joke)) // copies the line in jokes.txt
{
cout << c_joke;
ptr_write << c_joke;
if(c_joke=='\n')
{
break;

}
}

ptr_read.close();
ptr_write.close();
return 0;
}

// Counter ---

int countln(int ln) // counts the lines in jokes.txt
{
char c_ctrln;
ptr_read.open("jokes.txt", ios::in);
while(ptr_read.get(c_ctrln))
{
if(c_ctrln=='\n')
{
ln++;
}
}
ptr_read.close();
ln++;
return (ln);
}

Code:

#include<iostream.h>
#include<fstream.h>
#include<time.h>
#include<stdlib.h>

Should be:

Code:

#include <iostream>
#include <fstream>
#include <ctime>
#include <cstdio>

using namespace std;

Code:

main()
{

That's a C-style main function. In C++, main always returns an int.

Code:

int main( void )
{

but I don't have any problems with running the program. anyway, thanks 4 the advices

>>In C main() returns integer always just as in C++.

Should have been more clear. In C, it is implicit, while it must be explicitly stated in C++.