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- Subject: Re: Proposal for a standard way of defining custom operators in Lua
- From: Enrico Colombini <erix@...>
- Date: Thu, 25 Jul 2013 14:26:42 +0200
On 25/07/2013 14.03, steve donovan wrote:
Even in C++, the standard library makes very sparing use of operator
overloading, + for strings, << & >> for stream reading/writing,  for maps.
I agree with Lorenzo that otherwise an impressive string of symbols is an
attempt to make 'code' (source) look like 'code' (a secret cipher). Not a
good fit for a DSL intended for non-professional programmers!
When I first encountered C++ operator overloading (around 1990), I
thought "Wow! Great!" and used them extensively. Then I gradually moved
to "Not so great after all" and finally to "Best avoided" (except in
cases such as numeric types).
I still get confused by which one of "<<" / ">>" means "in" and which
one means "out" (when do data move from right to left?). Fortunately I
also learned to stay clear of the stream library altogether :-)