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Identity linear op added -- useful in circumstances where a linear op may or may not be needed.

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Supply a trivial one if not needed
This commit is contained in:
paboyle 2017-10-25 23:47:10 +01:00
parent 303e0b927d
commit d83868fdbb
1 changed files with 7 additions and 0 deletions
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7
lib/algorithms/LinearOperator.h
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@ -346,6 +346,13 @@ namespace Grid {
virtual void operator() (const Field &in, Field &out) = 0;
};
template<class Field> class IdentityLinearFunction : public LinearFunction<Field> {
public:
void operator() (const Field &in, Field &out){
out = in;
};
};
/////////////////////////////////////////////////////////////
// Base classes for Multishift solvers for operators