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Diffstat (limited to 'doc/examples/matrixfree_cg.cpp')
| -rw-r--r-- | doc/examples/matrixfree_cg.cpp | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/doc/examples/matrixfree_cg.cpp b/doc/examples/matrixfree_cg.cpp index 6a205aea3..74699381c 100644 --- a/doc/examples/matrixfree_cg.cpp +++ b/doc/examples/matrixfree_cg.cpp @@ -67,6 +67,7 @@ namespace internal { // 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. 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, // but let's do something fancier (and less efficient): |