Re: [Swig-devel] Non-const std::string references/pointers

[William S F. <ws...@fu...>]

David Nadlinger wrote:
> Just a quick question: I noticed that <std_string.i> only provides 
> typemaps for pass-by-value and const-reference strings (at least) for C# 
> and Java.
> 
> Is this just because strings themselves are immutable in these 
> languages,
Yes, although in C# there you could use ref string. The default handling 
in SWIG for non const primitive ref or pointer types, including strings 
is to treat as a pointer (intermediary class in strongly typed 
languages). Typemap libraries can offer improvements if necessary.

> which could be worked around by (pseudo-)pass-by-reference, 
> or are there any other issues with mutable string references I should be 
> aware of?
Typemaps for non const strings references/references ought to map to 
StringBuffer/StringBuilder in a library, but we don't have these available.

William