From: Carlos <angus@...>
Date: 2001-09-24T04:00:54+09:00
Subject: [ruby-talk:21607] Re: Please translate this easy snip of C++ to Ruby

>         #define TRACE_(x) cout << #x ": " << x << endl
> 
> When you use that like this:
> 
>         TRACE_(y + z);
>         TRACE_(strAnimals);
>         TRACE_(__LINE__);
> 
> the program emits this:
> 
>         y + z: 12
>         strAnimals: Lemmings
>         __LINE__:  69
> 
> How do I do that, just as easy to call (meaning without extra "" quotes or 
> anything), in Ruby?

Just put in your script

	#define TRACE_(x) puts(#x + ": " + x)

and then run it through

	cpp -P script.rb | ruby

but remember to avoid comments that may give cpp warnings, such as

	#!/usr/bin/ruby

;)