On 26 August 2015 at 12:04, Kostas Savvidis wrote: > The online documentation contains the attached passage as part of the "C-Extensions” chapter. There are no actual machines which have an " integer mode wide enough to hold 128 bits” as the document puts it. It's not talking about machine integers, it's talking about GCC integer modes. Several targets support that. > This would be a harmless confusion if it didn’t go on to say “… long long integer less than 128 bits wide” (???!!!) Whereas in reality "long long int” is 64 bits everywhere i have seen. Read it more carefully, it says you can't express an integer constant of type __int128 on such platforms. So you can't write __int128 i = 999999999999999999999999999999999999999999999999999999999999;
