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[WIP] Add applyEntrywise method

Open [WIP] Add applyEntrywise method
feature/inplace_binary into master
1 unresolved thread
Open lh1887 requested to merge feature/inplace_binary into master
1 unresolved thread

With this tool, one can write quite general code to apply x = op(y) entrywise for vectors x, y (where y can indeed be a pack of vectors).

Edited by lh1887

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dune/matrix-vector/genericvectortools.hh
44 45 Impl::ScalarSwitch<Vector>::truncate(v, tr);
45 46 }
46 47
48 /**! For a given operator "op", compute x = op(x,y) ENTRYWISE.
49 *
50 * If the op is not defined for the given types,
51 * the operator is recursively applied to subblocks
52 * until it can be used.
53 */
54 template<typename X, typename Y, typename BinaryOp>
55 void inplaceBinary(X&& x, Y&& y, BinaryOp&& op) {
56 if constexpr(Concept::isLegalBinaryOperator(x,y,op)) {
  • graeser
    graeser @graeser
    Owner

    I'm not sure if this does what you want (leaving the constexpr issue aside): For vectors x and x x * y may be the defined to be inner product which is not what is claimed here.

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