1 files changed, 10 insertions, 0 deletions

diff --git a/src/compat52.h b/src/compat52.h
index 163aecb..9b0a48e 100644
--- a/src/compat52.h
+++ b/src/compat52.h
@@ -29,6 +29,16 @@
 
 #define lua_getfield(L, i, f) (lua_getfield(L, (i), (f)), lua_type(L, -1))
 
+static int lua_isinteger(lua_State *L, int index) {
+  if (lua_type(L, index) == LUA_TNUMBER) {
+    lua_Number n = lua_tonumber(L, index);
+    lua_Integer i = lua_tointeger(L, index);
+    if (i == n)
+      return 1;
+  }
+  return 0;
+}
+
 #endif
 
 #if LUA_VERSION_NUM < 502