From 01b6fe0cbfe59fe74b255ede51806a574f5cf447 Mon Sep 17 00:00:00 2001
From: Roberto Ierusalimschy <roberto@inf.puc-rio.br>
Date: Thu, 25 Apr 2013 10:52:49 -0300
Subject: [PATCH] new API function 'lua_isinteger'

---
 lapi.c | 8 +++++++-
 lua.h  | 3 ++-
 2 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/lapi.c b/lapi.c
index 60e3a1ee..f0e219b4 100644
--- a/lapi.c
+++ b/lapi.c
@@ -1,5 +1,5 @@
 /*
-** $Id: lapi.c,v 2.172 2013/04/12 19:07:09 roberto Exp roberto $
+** $Id: lapi.c,v 2.173 2013/04/15 15:43:34 roberto Exp roberto $
 ** Lua API
 ** See Copyright Notice in lua.h
 */
@@ -264,6 +264,12 @@ LUA_API int lua_iscfunction (lua_State *L, int idx) {
 }
 
 
+LUA_API int lua_isinteger (lua_State *L, int idx) {
+  StkId o = index2addr(L, idx);
+  return ttisinteger(o);
+}
+
+
 LUA_API int lua_isnumber (lua_State *L, int idx) {
   TValue n;
   const TValue *o = index2addr(L, idx);
diff --git a/lua.h b/lua.h
index 7e898918..c1efd9a1 100644
--- a/lua.h
+++ b/lua.h
@@ -1,5 +1,5 @@
 /*
-** $Id: lua.h,v 1.284 2013/02/19 18:39:04 roberto Exp roberto $
+** $Id: lua.h,v 1.285 2013/03/15 13:04:22 roberto Exp roberto $
 ** Lua - A Scripting Language
 ** Lua.org, PUC-Rio, Brazil (http://www.lua.org)
 ** See Copyright Notice at the end of this file
@@ -161,6 +161,7 @@ LUA_API void  (lua_xmove) (lua_State *from, lua_State *to, int n);
 LUA_API int             (lua_isnumber) (lua_State *L, int idx);
 LUA_API int             (lua_isstring) (lua_State *L, int idx);
 LUA_API int             (lua_iscfunction) (lua_State *L, int idx);
+LUA_API int             (lua_isinteger) (lua_State *L, int idx);
 LUA_API int             (lua_isuserdata) (lua_State *L, int idx);
 LUA_API int             (lua_type) (lua_State *L, int idx);
 LUA_API const char     *(lua_typename) (lua_State *L, int tp);