From: Eric Pimentel Aguiar <eric.pimentela@gmail.com>
Date: Fri, 24 Oct 2025 13:41:04 +0000 (-0400)
Subject: libstdc++: Fix <mdspan> export in std module
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b1c2006077085a12b26c93cbc745508ba096be0a;p=thirdparty%2Fgcc.git

libstdc++: Fix <mdspan> export in std module

When exporting declarations in a namespace with using declarations, the
name must be fully qualified. Recently introduced std::full_extent{,_t},
std:strided_slice, and std::submdspan_mapping_result broke module std
and module std.compat.

libstdc++-v3/ChangeLog:

	* src/c++23/std.cc.in (std::strided_slice, std::full_extent_t)
	(std::full_extent, std::submdspan_mapping_result): Add std
	qualification.

Reviewed-by: Jonathan Wakely <jwakely@redhat.com>
---

diff --git a/libstdc++-v3/src/c++23/std.cc.in b/libstdc++-v3/src/c++23/std.cc.in
index e849307f186..4c11b1bf711 100644
--- a/libstdc++-v3/src/c++23/std.cc.in
+++ b/libstdc++-v3/src/c++23/std.cc.in
@@ -1872,10 +1872,10 @@ export namespace std
 #if __glibcxx_padded_layouts
   using std::layout_left_padded;
   using std::layout_right_padded;
-  using strided_slice;
-  using full_extent_t;
-  using full_extent;
-  using submdspan_mapping_result;
+  using std::strided_slice;
+  using std::full_extent_t;
+  using std::full_extent;
+  using std::submdspan_mapping_result;
 #endif
   // FIXME submdspan_extents, mdsubspan
 }