abs_functor< X >

Computes the modulus (absolute value or magnitude). This functor is used to implement abs().

The added value of the abs_functor is that it can be extended to any value-type that one might want to use in glas.

Defined in abs.hpp

Parameter	Description	Default
X	type of `abs_functor`'s argument.

X can be

any builtin type
std::complex<T> if GLAS_COMPLEX is defined
any other type if the abs_functor is specialised for X and abs_functor<X>::result_type is Assignable. (see the test-program using a boost::rational value-type).

Member	Where defined	Comment
`argument_type`	AdaptableUnaryFunction
`result_type`	AdaptableUnaryFunction
`result_type operator() (const X& a) const`	UnaryFunction