[gcc r16-183] libstdc++: Fix mingw build by using _M_span [PR119970]

[Tomasz Kaminski]

https://gcc.gnu.org/g:1be88e43f3e93e85bef9499de905fa72d8596e7d

commit r16-183-g1be88e43f3e93e85bef9499de905fa72d8596e7d
Author: Tomasz Kamiński <tkaminsk@redhat.com>
Date:   Mon Apr 28 08:53:59 2025 +0200

    libstdc++: Fix mingw build by using _M_span [PR119970]
    
    The r16-142-g01e5ef3e8b9128 chagned return type of _Str_sink::view()
    to basic_string_view<_CharT>. The mutable access is provided by _M_span
    function, that is now used for mingw path.
    
            PR libstdc++/119970
    
    libstdc++-v3/ChangeLog:
    
            * include/std/ostream (vprint_unicode) [_WIN32 && !__CYGWIN__]: Call
            _Str_sink::_M_span instead of view.
            * include/std/print (vprint_unicode) [_WIN32 && !__CYGWIN__]: Call
            _Str_sink::_M_span instead of view.

Diff:
---
 libstdc++-v3/include/std/ostream | 2 +-
 libstdc++-v3/include/std/print   | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/libstdc++-v3/include/std/ostream b/libstdc++-v3/include/std/ostream
index 644e568e8829..3a0a0d35df1d 100644
--- a/libstdc++-v3/include/std/ostream
+++ b/libstdc++-v3/include/std/ostream
@@ -193,7 +193,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
       {
 	__format::_Str_sink<char> __buf;
 	std::vformat_to(__buf.out(), __os.getloc(), __fmt, __args);
-	auto __out = __buf.view();
+	auto __out = __buf._M_span();
 
 	void* __open_terminal(streambuf*);
 	error_code __write_to_terminal(void*, span<char>);
diff --git a/libstdc++-v3/include/std/print b/libstdc++-v3/include/std/print
index ea1aaac43892..92dbe118fc31 100644
--- a/libstdc++-v3/include/std/print
+++ b/libstdc++-v3/include/std/print
@@ -73,7 +73,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
 #else
     __format::_Str_sink<char> __buf;
     std::vformat_to(__buf.out(), __fmt, __args);
-    auto __out = __buf.view();
+    auto __out = __buf._M_span();
 
     void* __open_terminal(FILE*);
     error_code __write_to_terminal(void*, span<char>);