2 files changed, 17 insertions, 0 deletions

diff --git a/src/lua_typeerror.c b/src/lua_typeerror.c
new file mode 100644
index 0000000..d6a3d76
--- /dev/null
+++ b/src/lua_typeerror.c
@@ -0,0 +1,10 @@
+#include "lua_typeerror.h"
+#include "lua.h"
+#include "lauxlib.h"
+
+int luaL_typeerror (lua_State *L, int narg, const char *tname) 
+{
+  const char *msg = lua_pushfstring(L, "%s expected, got %s",tname, luaL_typename(L, narg));
+  return luaL_argerror(L, narg, msg);
+}
+
diff --git a/src/lua_typeerror.h b/src/lua_typeerror.h
new file mode 100644
index 0000000..4f2aafd
--- /dev/null
+++ b/src/lua_typeerror.h
@@ -0,0 +1,7 @@
+#ifndef LUA_TYPEERROR_H_
+#define LUA_TYPEERROR_H_
+
+struct lua_State;
+int luaL_typeerror (struct lua_State *L, int narg, const char *tname);
+
+#endif