Re: [Boost-users] does boost::variant support 128 bit integer?

I said that I am not sure if boost::variant supports __int128 because I had difficulties in compiling this code : 1. #include 2. #include <string> 3. #include <iostream> 4. std::ostream& operator<<(std::ostream& o, const __int128& x) { if (x == std::numeric_limits<__int128>::min()) return o << "-170141183460469231731687303715884105728"; if (x < 0) return o << "-" << -x; if (x < 10) return o << (char)(x + '0'); return o << x / 10 << (char) (x % 10 + '0'); } 5. int main() 6. { 7. boost::variant<__int128, char, std::string> v; 8. v = 56; 9. v = 'Y'; 10. __int128 d=12; 11. std::cout < wrote:

On 4/7/2021 2:15 PM, Anil Muthigi via Boost-users wrote:

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I dont think so...

If it is available why do you think variant would not support it ?

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I guess int128_t under boost/multiprecision/cpp_int is the only viable option.

On Wed, 7 Apr 2021, 11:39 pm David Frank via Boost-users, mailto:boost-users@lists.boost.org> wrote:

especially the gnu __int128?

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