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Full Discussion: Error: undefined reference to winmain@16?
Top Forums Programming Error: undefined reference to winmain@16? Post 302876613 by Corona688 on Monday 25th of November 2013 03:46:24 PM
Old 11-25-2013
Again, the compiler is not asking you to jam random things into the middle of your code when it says main doesn't exist. It's asking you to add main(), unrelated to your code, outside it.

Of course, if you want your function to be run, you should tell main() to run it, since main runs everything.

Code:
#include <iostream>

using namespace std;

// Your function
int identity(int input)
{
  int output = input;
  return output;
}

// The function which the compiler will call when the program is run
int main() {
        int output=identify(32);
}

This User Gave Thanks to Corona688 For This Post:
DyslexicChciken
 

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LEARN ABOUT DEBIAN

poe::component::resolver::sidecar

POE::Component::Resolver::Sidecar(3pm)			User Contributed Perl Documentation		    POE::Component::Resolver::Sidecar(3pm)

NAME

       POE::Component::Resolver::Sidecar - delegate subprocess to call getaddrinfo()

VERSION

       version 0.920

SYNOPSIS

       Used internally by POE::Component::Resolver.

DESCRIPTION

       POE::Component::Resolver creates subprocesses to call getaddrinfo() so that the main program doesn't block during that time.

       The actual getaddrinfo() calling code is abstracted into this module so it can be run in a separate executable program.	This reduces the
       memory footprint of forking the entire main process for just getaddrinfo().

       It's a strong, useful pattern that other POE::Components have implemented before.  POE::Quickie does it generically.
       POE::Component::SimpleDBI and POE::Component::EasyDBI do it so their DBI subprocesses are relatively lightweight.

   main
       The main code to read POE::Component::Resolver requests from STDIN and write getaddrinfo() responses to STDOUT.

SEE ALSO

       POE::Component::Generic is one generic implementation of this pattern.

       POE::Quickie is another generic implementation of this pattern.

BUGS

       None known.

LICENSE

       Except where otherwise noted, this distribution is Copyright 2011 by Rocco Caputo.  All rights reserved.  This distribution is free
       software; you may redistribute it and/or modify it under the same terms as Perl itself.

perl v5.14.2							    2012-06-03				    POE::Component::Resolver::Sidecar(3pm)
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