Workaround clang bug

Flamefire · Flamefire · commit e5e0c5028d79 · 2025-01-04T14:46:31.000+01:00
Clang &lt; 15 has a bug in c++-20 mode where using the `std::basic_string` constructor taking a pointer and size leads to an undefined symbol `M_construct` when used with Unicode char types

Avoid this by using the range constructor.
diff --git a/include/boost/core/detail/string_view.hpp b/include/boost/core/detail/string_view.hpp
@@ -422,7 +422,7 @@ template<class Ch> class basic_string_view
 
     template<class A> operator std::basic_string<Ch, std::char_traits<Ch>, A>() const
     {
-        return std::basic_string<Ch, std::char_traits<Ch>, A>( data(), size() );
+        return std::basic_string<Ch, std::char_traits<Ch>, A>( begin(), end() );
     }
 
 #if !defined(BOOST_NO_CXX17_HDR_STRING_VIEW)

Original file line number	Diff line number	Diff line change
`@@ -422,7 +422,7 @@ template<class Ch> class basic_string_view`
`422`	`422`
`423`	`423`	`template<class A> operator std::basic_string<Ch, std::char_traits<Ch>, A>() const`
`424`	`424`	`{`
`425`		`- return std::basic_string<Ch, std::char_traits<Ch>, A>( data(), size() );`
	`425`	`+ return std::basic_string<Ch, std::char_traits<Ch>, A>( begin(), end() );`
`426`	`426`	`}`
`427`	`427`
`428`	`428`	`#if !defined(BOOST_NO_CXX17_HDR_STRING_VIEW)`