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fix #1139

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Cloud Wu
2019-12-25 17:58:03 +08:00
parent c075de7425
commit d232af70f2
1 changed files with 2 additions and 1 deletions
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3
lualib-src/lua-multicast.c
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@@ -141,7 +141,8 @@ static int
mc_nextid(lua_State *L) {
uint32_t id = (uint32_t)luaL_checkinteger(L, 1);
id += 256;
lua_pushinteger(L, (uint32_t)id);
// remove the highest bit, see #1139
lua_pushinteger(L, id & 0x7fffffffu);
return 1;
}