Two standard libraries?

[Robert Fraser]

I stand corrected.

Chris Nicholson-Sauls Wrote:

> Julio César Carrascal Urquijo wrote:
> > Kirk McDonald wrote:
> >> Robert Fraser wrote:
> >>> Well, not even scripting languages keep names of local variables in
> >>> memory at runtime...
> >>
> >> Hmm?
> >>
> >>  >>> a = 12
> >>  >>> b = 'waffles'
> >>  >>> locals()
> >> {'__builtins__': <module '__builtin__' (built-in)>, '__name__': 
> >> '__main__', 'b': 'waffles', '__doc__': None, 'a': 12}
> >>  >>> "%(a)s %(b)s" % locals()
> >> '12 waffles'
> >>
> > 
> > And if I may add:
> > 
> > <?php
> > 
> > $a = 5;
> > $b = 'a';
> > $$b = 'Hello, world!';
> > echo $a;
> > 
> > ?>
> 
> And also Ruby.
> 
> # names.rb
> puts Symbol.all_symbols.inspect
> 
> 
> This will print for you an array of a few thousand symbols from the 
> runtime, among them the names of many variables.  Changing the source to:
> myVar = 42
> puts Symbol.all_symbols.index(:myVar)
> 
> Gave me '1117'.  At least in Ruby each such symbol is retained exactly 
> once, no matter how many things have that name.  (Otherwise... could you 
> imagine the memory consumption...)
> 
> -- Chris Nicholson-Sauls