boost.string_view support

[kotbegemot]

How to make boost.string_view support ?

[kotbegemot]

How to support the boost.string_view on the side of the project ?

[kotbegemot]

help please @wjakob

[YannickJadoul]

Since this is used for std::string_view:

pybind11/include/pybind11/cast.h

Lines 1310 to 1314 in 0d70f0e

	#ifdef PYBIND11_HAS_STRING_VIEW
	template <typename CharT, class Traits>
	struct type_caster<std::basic_string_view<CharT, Traits>, enable_if_t<is_std_char_type<CharT>::value>>
	: string_caster<std::basic_string_view<CharT, Traits>, true> {};
	#endif

adding something to your code like

namespace pybind11 {
namespace detail {
template <typename CharT, class Traits>
struct type_caster<boost::basic_string_view<CharT, Traits>, enable_if_t<is_std_char_type<CharT>::value>>
    : string_caster<boost::basic_string_view<CharT, Traits>, true> {};
} // namespace detail
} // namespace pybind11

might also work?

Please give it a try (or use std::string_view, if you can), and reopen this issue if that doesn't solve it.