Skip to content

Latest commit

 

History

History
executable file
·
110 lines (67 loc) · 1.94 KB

rational.md

File metadata and controls

executable file
·
110 lines (67 loc) · 1.94 KB
Raw

Boost.Rational

  • lib: boost/libs/rational
  • repo: boostorg/rational
  • commit: d1cd08fc, 2017-03-27

Rational Number

Header

  • <boost/rational.hpp>

Class bad_rational

class bad_rational : public std::domain_error;

Class rational

template <typename IntType>
class rational;
Constructors & Destructor
  • constexpr rational() - 0/1
  • constexpr rational(n) - n/1
  • rational(num, den) - num/den, normalized
  • constexpr explicit rational(rational<NewType> const &)
Assign
  • operator=(n) -> rational& - n/1
  • assign(num, den) -> rational& - num/den
Operators
  • +=, -=, *=, /=, ++, --, !, bool, <, ==, >
Accessors
  • constexpr numerator() const -> const IntType&
  • constexpr denominator() const -> const IntType&
Non-member Operators
  • <=, ==, +, -, *, /, ++, -- Both for rational and IntType.
IO Supports
  • << and >>
Non-member Functions
  • constexpr rational_cast<T>(const rational<IntType>&) -> T
  • abs(const rational<IntType>&) -> rational<IntType>

Rationale

Keep normalized if possible. Throw bad_rational whenever encounter error.

Dependency

Boost.Config

  • <boost/config.hpp>.
  • <boost/detail/workaround.hpp>.

Boost.Core

  • <boost/utility/enable_if.hpp>

Boost.Utility

  • <boost/operators.hpp> - Support non-function operators.
  • <boost/call_traits.hpp>

Boost.Assert

  • <boost/assert.hpp>

Boost.Integer

  • <boost/integer/common_factor_rt.hpp> - Run-time GCD/LCM functions

Boost.StaticAssert

  • <boost/static_assert.hpp>

Boost.TypeTraits

  • <boost/type_traits/is_convertible.hpp>
  • <boost/type_traits/is_class.hpp>
  • <boost/type_traits/is_same.hpp>

Boost.ThrowException

  • <boost/throw_exception.hpp>

Standard Facilities

  • Proposals
    • n3611 - A Rational Number Library for C++ (not accepted).