nanobind incompatible function argument types

Question

I have this basic example:

#include <iostream>
#include <nanobind/nanobind.h>

class T {
public:
    T(std::string s) {
        std::cout << "hello world" << std::endl;
    };
}

NB_MODULE(basic_example, m) {

    nb::class_<T>(m, "T")
    .def(nb::init<std::string>())
    ;
}

When I try to compile, I'm getting the error:

TypeError: init(): incompatible function arguments. The following argument types are supported: 1. init(self, arg: std::__cxx11::basic_string<char, std::char_traits, std::allocator >, /) -> None

I'm new to nanobind and unfamiliar with how to fix it.

Answer 1

For whatever reason (probably performance), just using #include <nanobind/nanobind.h> will not give you access to std::string interoperability, for that you will need to make sure you include nanobind/stl/string.h and recompile it it will work.