vmat

来源： https://stackoverflow.com/questions/15899937/is-it-possible-to-enable-libcpp-debug2-in-the-current-xcode-4-6-1-toolchain-on

来源： https://stackoverflow.com/questions/15899937/is-it-possible-to-enable-libcpp-debug2-in-the-current-xcode-4-6-1-toolchain-on

来源： https://stackoverflow.com/questions/15899937/is-it-possible-to-enable-libcpp-debug2-in-the-current-xcode-4-6-1-toolchain-on

问题 I am porting some MATLAB code to C++ using the Eigen 3 template library, and I am looking for a good mapping for this common MATLAB idiom: K>> [1 2 3 4 5] <= 3 ans = 1 1 1 0 0 So, compare an array and a scalar, returning an array of booleans that has the same shape. I understand that Eigen's Array class has coefficient-wise comparison operators, but if I'm interpreting the docs correctly they only work with another array; not with scalar values. Is there some option I've missed that will