4 files changed, 9 insertions, 9 deletions
diff --git a/lib/libc/locale/mbstowcs.c b/lib/libc/locale/mbstowcs.c
index b473f89..f27f897 100644
--- a/lib/libc/locale/mbstowcs.c
+++ b/lib/libc/locale/mbstowcs.c
@@ -45,8 +45,8 @@ __FBSDID("$FreeBSD$");
 
 size_t
 mbstowcs(pwcs, s, n)
-	wchar_t *pwcs;
-	const char *s;
+	wchar_t *__restrict pwcs;
+	const char *__restrict s;
 	size_t n;
 {
 	char const *e;
diff --git a/lib/libc/locale/mbtowc.c b/lib/libc/locale/mbtowc.c
index 166ea79..67771a0 100644
--- a/lib/libc/locale/mbtowc.c
+++ b/lib/libc/locale/mbtowc.c
@@ -43,8 +43,8 @@ __FBSDID("$FreeBSD$");
 
 int
 mbtowc(pwc, s, n)
-	wchar_t *pwc;
-	const char *s;
+	wchar_t *__restrict pwc;
+	const char *__restrict s;
 	size_t n;
 {
 	char const *e;
diff --git a/lib/libc/locale/multibyte.3 b/lib/libc/locale/multibyte.3
index 6cfaa7a..7069b7c 100644
--- a/lib/libc/locale/multibyte.3
+++ b/lib/libc/locale/multibyte.3
@@ -52,11 +52,11 @@
 .Ft int
 .Fn mblen "const char *mbchar" "size_t nbytes"
 .Ft size_t
-.Fn mbstowcs "wchar_t *wcstring" "const char *mbstring" "size_t nwchars"
+.Fn mbstowcs "wchar_t *restrict wcstring" "const char *restrict mbstring" "size_t nwchars"
 .Ft int
-.Fn mbtowc "wchar_t *wcharp" "const char *mbchar" "size_t nbytes"
+.Fn mbtowc "wchar_t *restrict wcharp" "const char *restrict mbchar" "size_t nbytes"
 .Ft size_t
-.Fn wcstombs "char *mbstring" "const wchar_t *wcstring" "size_t nbytes"
+.Fn wcstombs "char *restrict mbstring" "const wchar_t *restrict wcstring" "size_t nbytes"
 .Ft int
 .Fn wctomb "char *mbchar" "wchar_t wchar"
 .Sh DESCRIPTION
diff --git a/lib/libc/locale/wcstombs.c b/lib/libc/locale/wcstombs.c
index ed9397a..208aac8 100644
--- a/lib/libc/locale/wcstombs.c
+++ b/lib/libc/locale/wcstombs.c
@@ -45,8 +45,8 @@ __FBSDID("$FreeBSD$");
 
 size_t
 wcstombs(s, pwcs, n)
-	char *s;
-	const wchar_t *pwcs;
+	char *__restrict s;
+	const wchar_t *__restrict pwcs;
 	size_t n;
 {
 	char buf[MB_LEN_MAX];