A program that produces its source code as output

@prakashathani-RsvHp8 • Oct 26, 2024

Oct 26, 2024

1.6K

Can anyone think about a program in any programming language of your choice which will post its own source code as output?

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Kaustubh Katdare

@thebigk • Oct 7, 2008

No tries here? Where are our *crazy* computer engineers?
0
sauravgoswami

@sauravgoswami-UAfTlI • Oct 7, 2008

well its possible to write a programme to generate source codes,and it is possible here too,but the challenge is to generate codes according to the need of the hour,say less memory space,more sturdy,preference of tools so.on...
0
sriramchandrk

@sriramchandrk-wt4rlR • Oct 9, 2008

There are 3 types of executable programs (interpreted(basic, perl) , compiled programs (c, pascal) & semi interpreted (java) )

You can produce its own source code as output only in interpreted programs.

its possible for semi interpreted using a process called as decompilation but the output may not be exactly same as initial source.

It not possible for compiled program.

example for interpreted program using perl.
=========================

#!/usr/bin/perl

open(INFILE, $0);
while(<INFILE>)
{
print "$_";
}

=========================

Thanks & Regards
Sriram
0
aashu_itdude

@aashu-itdude-YKuvro • Oct 10, 2008

this c++ code reads the source file and displays the code as output. Its not a perfect code for this query but it can be further developed.

#include<iostream.h>
#include<conio.h>
#include<stdio.h>
#include<fstream.h>
void main()
{
clrscr();
int c=0;
char a[238];
ifstream fin("out.cpp"); //name of program
while(!fin.eof())
{
fin.read(a,238);
}
puts(a);
getch();
}
0

emYth

@emyth-rTOL7D • Oct 12, 2008

Assuming that the source file names test.cpp

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

int main()
{
    freopen("test.cpp","rt",stdin);
    string g;
    while(getline(cin,g)&&cin)
    {
      cout<<g<<endl;
    }
    return 0;
}

Predictor

@predictor-lfVrRm • Feb 23, 2010

sriramchandrk
There are 3 types of executable programs (interpreted(basic, perl) , compiled programs (c, pascal) & semi interpreted (java) )
...but there have been BASIC compilers and C interpreters. ???

-Will Dwinnell
<a href="https://matlabdatamining.blogspot.com/" target="_blank" rel="nofollow noopener noreferrer">Data Mining in MATLAB</a>

0

Manish Goyal

@manish-r2Hoep • Feb 23, 2010

import java.io.*;
class Source
{
public static void main(String args[])throws IOException
{
FileReader fr=new FileReader("Source.java");
int c;
while((c=fr.read())!=-1)
{
System.out.print((char)c);
}
}
}

malardevi

@malardevi-aD4KBK • Feb 23, 2010

prakash.athani
Can anyone think about it and post replies?
I think try it by using the same file name in that program. open the same file read it and then print it. just try it.
0
trishna05

@trishna05-dzSjuq • Jun 28, 2012

#include <stdio.h>
char*s="#include <stdio.h>%c char*s=%c%s%c;%c int main(void){printf(s,10,34,s,34,10,10);}";
int main(void)
{
printf(s,10,34,s,34,10,10);
}
0
Sahithi Pallavi

@sahithi-oJZaYj • Jun 28, 2012

😕 😲 😒

PS : sorry for spamming.
0