pub unsafe extern "C" fn SelectSources(
nodes: *mut *mut nodeT,
mag: *mut *mut f32,
ground: *mut nodeT,
nflow: c_long,
flows: *mut *mut c_short,
ngroundarcs: c_long,
nrow: c_long,
ncol: c_long,
params: *mut paramT,
sourcelistptr: *mut *mut *mut nodeT,
nconnectedarrptr: *mut *mut c_long,
) -> c_long