FLENS is a C++ library for the efficient implementation of numerical algorithms.
Compiles with
clang++
g++ (>= 4.7)
icc (>= 12.1.2)
Read more on
http://www.mathematik.uni-ulm.de/~lehn/FLENS/
If you want to test FLENS-LAPACK with Netlib's LAPACK test suites simply run
make check
Note that this requires a Fortran compiler.