Dune::MathOverloads Namespace Reference

namespace for customization of math functions with Dune-Semantics More...

Classes
struct	ADLTag
	Tag to make sure the functions in this namespace can be found by ADL. More...

Functions
template<class K , int SIZE>
auto	isFinite (const FieldVector< K, SIZE > &b, PriorityTag< 2 >, ADLTag)
	Returns whether all entries are finite.
template<class K , int SIZE>
bool	isInf (const FieldVector< K, SIZE > &b, PriorityTag< 2 >, ADLTag)
	Returns whether any entry is infinite.
template<class K , int SIZE, std::enable_if_t< HasNaN< K >::value, int > = 0>
bool	isNaN (const FieldVector< K, SIZE > &b, PriorityTag< 2 >, ADLTag)
	Returns whether any entry is NaN.
template<class K , std::enable_if_t< HasNaN< K >::value, int > = 0>
bool	isUnordered (const FieldVector< K, 1 > &b, const FieldVector< K, 1 > &c, PriorityTag< 2 >, ADLTag)
	Returns true if either b or c is NaN.

Detailed Description

namespace for customization of math functions with Dune-Semantics

You can add overloads for the Dune-semantics of math-functions in this namespace. These overloads will be used by functors like Dune::isNaN to implement these functions, and will be preferred over functions found by ADL, or the corresponding functions from the standard (whether they are found by ADL or in the namespace std.

PriorityTag

There are two predefined priorities:

<1> provides a default implementation, only applicable if the camelCase-Version of the function (e.g. isNaN) can be found via ADL for an argument of type T. (Otherwise the overload should not participate in overload resolution.)

<0> provides a default implementation that forwards the call to the lower-case version of the function (e.g. isnan), found via ADL and the namespace std.

Any higher priority up to 10 can be used by other overloads.