perl script

[Polanski]

To whom it may concern,

One of my friends made a perl script for me and I need to know what it does. I would translate it myself but right now one of my other friends is borrowing my o'reilly perl script book. Can someone help me out?

Here is the script:

#include<iostream.h>
#include<stdio.h>
void main ( )
{
int i=0;
int n;
int a[10];
int j;

cout << "enter number", << i+1 <<" 10 to end ";
cin >> n;
}
for (j =i; j>0; j--)
cout << a[j] << "\n";

[eyceguy]

umm sorry to burst your bubble... but it's not perl

it looks like c/c++, really bad c/c++

its hard to follow, since it does nothing with the value j, which is never initalized or even set before accessing the array which is a guarantee for out of bounds array accessing

BUT

if it was set it looks like it would display one line at a time the top x elements of array a where x is the value that one would input to at the prompt

EDIT:
ahh i notice that j is actually set at the beginning of the for loop, but still, the values of the array a[] are not set, which would give you different values each time you ran it

[phlipant]

It is C++. Best I can figure, it tries to do this

#include <iostream.h>
#include <stdio.h>

int main ( )
{
int i=0;
int j;

cout << "enter number: " << 1 <<" 10 to end ";
cin >> i;

for (j =i; j>0; j--) cout << "Value " << j << endl;
}

Although, I haven`t got a clue, why?

[whk]

You could have copied and pasted the first line on Google or Yahoo and found out what it is (C++). Then peruse each line and figured it out. You know "what is a loop?" etc ...

addendum
well you need to type it on a utility (e.g. vi, kate oe nano)
compile it and test the lines
use the command line to make and display results
you can do it

[nabetse]

What were you or your friend trying to do with the code?

#include<iostream.h>
#include<stdio.h>

void main ( ){
\\ Declares some integers
int i=0;
int n;
int a[10];
int j;

\\ Prompts user for a number (1 in this case)
cout << "enter number", << i+1 <<" 10 to end ";
\\ Takes a number as input
cin >> n;
}

\\ Notice this part is outside of main()
\\ I'm not even sure this part will run
\\ If it does, notice that j starts at 0 and proceeds to count down
\\ As far as I can tell, it'll cycle through all of the negative integers
\\ and then stop when it cycles through to the largest int
for (j =i; j>0; j--)
cout << a[j] << "\n";

[spx2]

your program does not make very much sense to me,but
here it is translated in perl.

my i,n,j; my @a;
n=<>;
print "value $j\n" for $j(reverse 0..$i);

[whitewater3505]

To whom it may concern,

One of my friends made a perl script for me and I need to know what it does. I would translate it myself but right now one of my other friends is borrowing my o'reilly perl script book. Can someone help me out?

Here is the script:

#include<iostream.h>
#include<stdio.h>
void main ( )
{
int i=0;
int n;
int a[10];
int j;

cout << "enter number", << i+1 <<" 10 to end ";
cin >> n;
}
for (j =i; j>0; j--)
cout << a[j] << "\n";

OK so this is c++. What this does is it has a user input one number into an array. then outputs the whole array. But this is terrible code. First you need to input all 10 values, or else the program may seg fault when it tries to output the other nine values that weren't inputed. So you would need for the input:

add:
for (int k=0; k<10; k++)
before:
cin >> n;

Also outside of main you have the output:

for (j =i; j>0; j--)
cout << a[j] << "\n";

You want to move that before the last } and change j-- to j++

Also take out the #include <studio.h>

you are adding an extra header file you do not need.

I believe someone had the perl script listed above...

Use that instead... Maybe your friend should not be programming if he believes the above code is perl