Re: good tutorial on extending a c++ project with Guile ?

["Hans Åberg" <haberg-1@telia.com>]

> On 26 Jun 2017, at 14:45, Samuel Barreto <samuel.barreto8@gmail.com> wrote:

> So can anyone point me to a good example or a simple tutorial on how to
> extend C++ with Guile ?

Long ago, I wrote [1], which includes a parser generated with Flex/Bison, and examples how to convert between Guile and C++ exceptions. According to discussions here before, it is bad idea passing C++ exceptions through C code.

One difference is that in general there is no way one can guarantee in a C++ interface that an integer staying the same when passed through Guile, as Scheme does not have a static integer and rational number types, but a single number type. So there need to be checks there.

> I think the main confusion point to me is the
> compilation [dance] between g++ and gcc.

C++ names are mangled, and 'extern "C"' drops that, so that the names can be combined with C. If you compile C with g++, I think it will assume it is compile it as C++ with name mangling then.

The Makefile of [1] compiles C++ with g++, but links using gcc with the option '-lstdc++', but perhaps it works using g++, as long it involves no C file compiling.

1. https://secure2.storegate.com/Shares/Home.aspx?ShareID=56659ce2-127e-455e-ba1f-e6cbc82ba973