pub unsafe extern "C" fn xc_gga_exc_vxc(
p: *const xc_func_type,
np: c_ulong,
rho: *const f64,
sigma: *const f64,
zk: *mut f64,
vrho: *mut f64,
vsigma: *mut f64
)Expand description
Evaluates the energy density and its first derivative for a GGA functional