The following code snippet will not compile since cc is a mapping.
std::vector<double> value(5, 0);
Eigen::Map<Eigen::VectorXd> cc(value.data(), value.size());
auto dd = cc.cwiseMax(3);
auto ee = cc.array().cwiseMax(3);
Other functions, like cwiseInverse(), cwiseAbs() work well.
I fixed this in the dev-branch:
A unit case for this would actually be nice (therefore I don't close it yet).
Date: 2013-10-15 23:51:01
Summary: bug 679: add respective unit test
Both changesets have been backported to 3.2
The unit test still does not cover Maps or Blocks (or .transpose(), ...)
we cannot test all operations with all possible expressions. The problem was that cwiseMin/Max worked only on Matrix or Array object. The new tests check for a more general expression that seems enough to me.