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Fix warning

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This commit is contained in:
Gael Guennebaud 2018-06-07 15:56:20 +02:00
parent af7c83b9a2
commit c723ffd763
1 changed files with 1 additions and 0 deletions
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doc/examples/matrixfree_cg.cpp
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@ -67,6 +67,7 @@ namespace internal {
// This method should implement "dst += alpha * lhs * rhs" inplace, // This method should implement "dst += alpha * lhs * rhs" inplace,
// however, for iterative solvers, alpha is always equal to 1, so let's not bother about it. // however, for iterative solvers, alpha is always equal to 1, so let's not bother about it.
assert(alpha==Scalar(1) && "scaling is not implemented"); assert(alpha==Scalar(1) && "scaling is not implemented");
EIGEN_ONLY_USED_FOR_DEBUG(alpha);
// Here we could simply call dst.noalias() += lhs.my_matrix() * rhs, // Here we could simply call dst.noalias() += lhs.my_matrix() * rhs,
// but let's do something fancier (and less efficient): // but let's do something fancier (and less efficient):