LWG4448 Do not forward fn in completion_signatures

burblebee · tkoeppe · commit 5d4d8ffa774d · 2025-12-14T14:36:57.000Z
Fixes NB US 230-360 (C++26 CD).
diff --git a/source/exec.tex b/source/exec.tex
@@ -6129,7 +6129,7 @@
 
       template<class Fn>
         static constexpr void @\exposid{for-each}@(Fn&& fn) {               // \expos
-          (std::forward<Fn>(fn)(static_cast<Fns*>(nullptr)), ...);
+          (fn(static_cast<Fns*>(nullptr)), ...);
         }
     };
 

Original file line number	Diff line number	Diff line change
`@@ -6129,7 +6129,7 @@`
`6129`	`6129`
`6130`	`6130`	`template<class Fn>`
`6131`	`6131`	`static constexpr void @\exposid{for-each}@(Fn&& fn) { // \expos`
`6132`		`- (std::forward<Fn>(fn)(static_cast<Fns*>(nullptr)), ...);`
	`6132`	`+ (fn(static_cast<Fns*>(nullptr)), ...);`
`6133`	`6133`	`}`
`6134`	`6134`	`};`
`6135`	`6135`