128-bit int
(Mylib/Misc/int128.cpp)

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• Last update: 2021-04-23 23:44:44+09:00
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Operations

Requirements

Notes

Problems

References

Required by

• Primality test (Miller-Rabin algorithm) (Mylib/Number/Prime/miller_rabin.cpp)
• Prime factorization (Pollard's rho algorithm) (Mylib/Number/Prime/pollard_rho.cpp)

Verified with

• test/yosupo-judge/factorize/main.test.cpp
• test/yukicoder/3030/main.test.cpp

Code

#pragma once

namespace haar_lib {
#ifdef __SIZEOF_INT128__
  using uint128_t = __uint128_t;
  using int128_t  = __int128_t;
#else
#include <boost/multiprecision/cpp_int.hpp>
  using uint128_t = boost::multiprecision::uint128_t;
  using int128_t  = boost::multiprecision::int128_t;
#endif
}  // namespace haar_lib

#line 2 "Mylib/Misc/int128.cpp"

namespace haar_lib {
#ifdef __SIZEOF_INT128__
  using uint128_t = __uint128_t;
  using int128_t  = __int128_t;
#else
#include <boost/multiprecision/cpp_int.hpp>
  using uint128_t = boost::multiprecision::uint128_t;
  using int128_t  = boost::multiprecision::int128_t;
#endif
}  // namespace haar_lib

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