From 2313705ae668e94d123128228db34560f4fff1db Mon Sep 17 00:00:00 2001
From: "A. Jiang" <de34@live.cn>
Date: Wed, 25 Mar 2026 21:05:15 +0800
Subject: [PATCH 1/2] [iostream.forward.overview] Add missing mentions of
 spanbuf and spanstreams

A follows up to P0448R4.
---
 source/iostreams.tex | 16 ++++++++++------
 1 file changed, 10 insertions(+), 6 deletions(-)

diff --git a/source/iostreams.tex b/source/iostreams.tex
index 03e07d529a..67a0ae72ee 100644
--- a/source/iostreams.tex
+++ b/source/iostreams.tex
@@ -363,17 +363,19 @@
 serves as a base class for class templates
 \tcode{basic_stringbuf},
 \tcode{basic_filebuf},
+\tcode{basic_syncbuf},
 and
-\tcode{basic_syncbuf}.
+\tcode{basic_spanbuf}.
 
 \pnum
 The
 class template specialization
 \tcode{basic_istream<charT, traits>}
 serves as a base class for class templates
-\tcode{basic_istringstream}
+\tcode{basic_istringstream},
+\tcode{basic_ifstream},
 and
-\tcode{basic_ifstream}.
+\tcode{basic_ispanstream}.
 
 \pnum
 The
@@ -382,17 +384,19 @@
 serves as a base class for class templates
 \tcode{basic_ostringstream},
 \tcode{basic_ofstream},
+\tcode{basic_osyncstream},
 and
-\tcode{basic_osyncstream}.
+\tcode{basic_ospanstream}.
 
 \pnum
 The
 class template specialization
 \tcode{basic_iostream<charT, traits>}
 serves as a base class for class templates
-\tcode{basic_stringstream}
+\tcode{basic_stringstream},
+\tcode{basic_fstream},
 and
-\tcode{basic_fstream}.
+\tcode{basic_spanstream}.
 
 \pnum
 \begin{note}

From 5735213fa0429d2a4b27ad3a4df94689fc62564e Mon Sep 17 00:00:00 2001
From: "A. Jiang" <de34@live.cn>
Date: Wed, 25 Mar 2026 21:05:37 +0800
Subject: [PATCH 2/2] [iostream.forward.overview] Say "designate
 specialization".

This replaces the imprecise and informal phrase "define instances of
class templates".
---
 source/iostreams.tex | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/source/iostreams.tex b/source/iostreams.tex
index 67a0ae72ee..2ec4c6445e 100644
--- a/source/iostreams.tex
+++ b/source/iostreams.tex
@@ -408,9 +408,8 @@
 \end{note}
 
 \pnum
-Other \grammarterm{typedef-name}{s} define instances of
-class templates
-specialized for
+Other \grammarterm{typedef-name}{s} designate
+class template specializations for
 \tcode{char}
 or
 \keyword{wchar_t}