Function lua_tonumber

Source/Misc/lua/src/lua.c:2162–2169

LUA_API lua_Number lua_tonumber (lua_State *L, int idx) {
TValue n;
const TValue *o = index2adr(L, idx);
if (tonumber(o, &n))
return nvalue(o);
else
return 0;
}


LUA_API lua_Integer lua_tointeger (lua_State *L, int idx) {