1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768697071727374757677787980818283 |
- // Boost.Geometry (aka GGL, Generic Geometry Library)
- // Copyright (c) 2015, Oracle and/or its affiliates.
- // Contributed and/or modified by Menelaos Karavelas, on behalf of Oracle
- // Licensed under the Boost Software License version 1.0.
- // http://www.boost.org/users/license.html
- #ifndef BOOST_GEOMETRY_POLICIES_IS_VALID_FAILURE_TYPE_POLICY_HPP
- #define BOOST_GEOMETRY_POLICIES_IS_VALID_FAILURE_TYPE_POLICY_HPP
- #include <boost/geometry/algorithms/validity_failure_type.hpp>
- namespace boost { namespace geometry
- {
- // policy that simply keeps (and can return) the failure type
- template <bool AllowDuplicates = true, bool AllowSpikes = true>
- class failure_type_policy
- {
- private:
- static inline
- validity_failure_type transform_failure_type(validity_failure_type failure)
- {
- if (AllowDuplicates && failure == failure_duplicate_points)
- {
- return no_failure;
- }
- return failure;
- }
- static inline
- validity_failure_type transform_failure_type(validity_failure_type failure,
- bool is_linear)
- {
- if (is_linear && AllowSpikes && failure == failure_spikes)
- {
- return no_failure;
- }
- return transform_failure_type(failure);
- }
- public:
- failure_type_policy()
- : m_failure(no_failure)
- {}
- template <validity_failure_type Failure>
- inline bool apply()
- {
- m_failure = transform_failure_type(Failure);
- return m_failure == no_failure;
- }
- template <validity_failure_type Failure, typename Data>
- inline bool apply(Data const&)
- {
- return apply<Failure>();
- }
- template <validity_failure_type Failure, typename Data1, typename Data2>
- inline bool apply(Data1 const& data1, Data2 const&)
- {
- m_failure = transform_failure_type(Failure, data1);
- return m_failure == no_failure;
- }
- validity_failure_type failure() const
- {
- return m_failure;
- }
- private:
- validity_failure_type m_failure;
- };
- }} // namespace boost::geometry
- #endif // BOOST_GEOMETRY_POLICIES_IS_VALID_FAILURE_TYPE_POLICY_HPP
|