configuration for NaN trick big-endian + macro 'luai_checknum' to

ensure numbers comming from C are not "improper" (some kinds of
signaling NaNs)

1 files changed, 3 insertions, 1 deletions

diff --git a/lapi.c b/lapi.c
index 8fd9ba86..b2035931 100644
--- a/lapi.c
+++ b/lapi.c
@@ -1,5 +1,5 @@
 /*
-** $Id: lapi.c,v 2.147 2011/05/31 18:27:56 roberto Exp roberto $
+** $Id: lapi.c,v 2.148 2011/06/02 19:31:40 roberto Exp roberto $
 ** Lua API
 ** See Copyright Notice in lua.h
 */
@@ -463,6 +463,8 @@ LUA_API void lua_pushnil (lua_State *L) {
 LUA_API void lua_pushnumber (lua_State *L, lua_Number n) {
   lua_lock(L);
   setnvalue(L->top, n);
+  luai_checknum(L, L->top,
+    luaG_runerror(L, "C API - attempt to push a signaling NaN"));
   api_incr_top(L);
   lua_unlock(L);
 }