On Saturday, 4 November 2023 at 12:34:28 UTC, Dadoum wrote:
On Saturday, 4 November 2023 at 12:01:11 UTC, Emmanuel Danso
Nyarko wrote:
[...]
So C-strings are just an array of characters that are governed
by simple functions and D strings also defined the same. So
you could see that D strings are possibly built on the
architecture of C strings. In C++, string is a complex
standard template library that generates complex symbols and
cannot be mapped as it is based on a standard library
implementation.
I don't think the strings are being translated in any way when
we change the linkage. Strings in D are dynamic arrays of
chars, the C binding code is giving us a template representing
D's dynamic arrays, and so I thought that we could also use it
in C++ for interoperability with D dynamic arrays.
There is a syntax disagreement here that's why the D compiler is
instantly stopping you from doing any symbol generated
interaction with string in C++ interop. C++ doesn't know 'string'
and C++ mangles with parameters and so passing string will make
string get involved with the symbol generation and since
string(std::string) in C++ is a template library, the D compiler
stops you from engaging with 'string'
