3 files changed, 16 insertions, 10 deletions
diff --git a/lib/libc/string/memccpy.3 b/lib/libc/string/memccpy.3
index 2de981449119..0d35a68fce67 100644
--- a/lib/libc/string/memccpy.3
+++ b/lib/libc/string/memccpy.3
@@ -80,7 +80,7 @@ The
 function conforms to
 .St -p1003.1-2004
 and
-.St -isoC-2024 .
+.St -isoC-2023 .
 .Sh HISTORY
 The
 .Fn memccpy
diff --git a/lib/libc/string/memchr.3 b/lib/libc/string/memchr.3
index f5d1fe5d5c7f..c50e932d3382 100644
--- a/lib/libc/string/memchr.3
+++ b/lib/libc/string/memchr.3
@@ -34,7 +34,7 @@
 .Os
 .Sh NAME
 .Nm memchr
-.Nd locate byte in byte string
+.Nd locate byte in memory object
 .Sh LIBRARY
 .Lb libc
 .Sh SYNOPSIS
@@ -51,8 +51,11 @@ locates the first occurrence of
 .Fa c
 (converted to an
 .Vt "unsigned char" )
-in string
-.Fa b .
+in object
+.Fa b ,
+limited to at most
+.Fa len
+characters.
 .Pp
 The
 .Fn memrchr
@@ -60,16 +63,19 @@ function behaves like
 .Fn memchr ,
 except that it locates the last occurrence of
 .Fa c
-in string
-.Fa b .
+in object
+.Fa b ,
+limited to the first
+.Fa len
+characters.
 .Sh RETURN VALUES
 The
 .Fn memchr
 and
 .Fn memrchr
-functions
-return a pointer to the byte located,
-or NULL if no such byte exists within
+functions return a pointer to the byte located, or
+.Dv NULL
+if no such byte exists within
 .Fa len
 bytes.
 .Sh SEE ALSO
diff --git a/lib/libc/string/memset.3 b/lib/libc/string/memset.3
index f2dba3ec5a48..f6ab9dacb516 100644
--- a/lib/libc/string/memset.3
+++ b/lib/libc/string/memset.3
@@ -141,4 +141,4 @@ conforms to
 K.3.7.4.1.
 .Fn memset_explicit
 conforms to
-.St -isoC-2024 .
+.St -isoC-2023 .