From 9086bbd52734129d302f18767cb321d674d0d301 Mon Sep 17 00:00:00 2001
From: Lorenzo Cogotti <lcg@doublefourteen.io>
Date: Thu, 15 Dec 2022 19:41:14 +0100
Subject: [PATCH] [osx] Document isatty().

---
 osx.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/osx.c b/osx.c
index d3f7723..8d25a18 100644
--- a/osx.c
+++ b/osx.c
@@ -802,6 +802,13 @@ static int os_fadvise(lua_State *L)
     return os_result(L, ec, NULL);
 }
 
+/**
+ * Test whether an opened file handle references a character device (TTY).
+ *
+ * @tparam File f an opened file handle
+ * @treturn boolean true if file references a character device, false otherwise.
+ * @function isatty
+ */
 static int os_isatty(lua_State *L)
 {
     luaL_Stream *stream = luaL_checkudata(L, 1, LUA_FILEHANDLE);