From 29dbf3fd70509889724dda05badaa61dd9042825 Mon Sep 17 00:00:00 2001
From: Eisenwave <me@eisenwave.net>
Date: Sun, 9 Nov 2025 16:25:44 +0100
Subject: [PATCH 1/2] CWG1670 auto as conversion-type-id

Fixes NB FI-4 (C++14 CD).
---
 source/declarations.tex | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/source/declarations.tex b/source/declarations.tex
index 31f91c4c9b..98d45bf18b 100644
--- a/source/declarations.tex
+++ b/source/declarations.tex
@@ -1866,7 +1866,8 @@
 \pnum
 A placeholder type can appear in
 the \grammarterm{decl-specifier-seq} or \grammarterm{type-specifier-seq}
-in the declared return type of a function declarator that declares a function;
+in the declared return type of a function declarator
+that declares a function other than a conversion function\iref{class.conv.fct};
 the return type of the function is
 deduced from non-discarded \tcode{return} statements, if any, in the body
 of the function\iref{stmt.if}.

From c40f6339411f05c35e51a1ceb9a3a7bdc2575eb7 Mon Sep 17 00:00:00 2001
From: Eisenwave <me@eisenwave.net>
Date: Sun, 9 Nov 2025 16:32:01 +0100
Subject: [PATCH 2/2] [class.conv.fct] Remove line incorrectly stating that
 "operator auto" is well-formed

---
 source/classes.tex | 1 -
 1 file changed, 1 deletion(-)

diff --git a/source/classes.tex b/source/classes.tex
index 742e3c6493..e5579e4c12 100644
--- a/source/classes.tex
+++ b/source/classes.tex
@@ -2711,7 +2711,6 @@
 \begin{example}
 \begin{codeblock}
 struct S {
-  operator auto() const { return 10; }      // OK
   template<class T>
   operator auto() const { return 1.2; }     // error: conversion function template
 };