text: // Copyright (c) 2021, gottingen group.
  // All rights reserved.
  // Created by liyinbin lijippy@163.com
  
  #ifndef FLARE_BASE_MATH_IS_ODD_H_
  #define FLARE_BASE_MATH_IS_ODD_H_
  
  namespace flare::base {
  
      constexpr bool is_odd(const long long x) noexcept {
          return (x & 1U) != 0;
      }
  
  }  // namespace flare::base
  
  #endif  // FLARE_BASE_MATH_IS_ODD_H_
  