  We assess the Tognetti-Cortona-Adamo (TCA) generalized gradient approximation
correlation functional [J. Chem. Phys. 128:034101 (2008)] for a variety of
electronic systems. We find that, even if the TCA functional is not exact for
the uniform electron gas, it is very accurate for the jellium surface
correlation energies and it gives a realistic description of the quantum
oscillations and surface effects of various jellium clusters, that are
important model systems in computational chemistry and solid-state physics.
When the TCA correlation is combined with the non-empirical PBEint, Wu-Cohen,
and PBEsol$_b$ exchange functionals, the resulting exchange-correlation
approximations provide good performances for a broad palette of systems and
properties, being reasonably accurate for thermochemistry and geometry of
molecules, transition metal complexes, non-covalent interactions,equilibrium
lattice constants, bulk moduli, and cohesive energies of solids.
