Color argument for SU(N)

For the general color case SU(N) the specific function call requires an extra argument giving the number of colors. It always comes first. Thus in the above example we would write

   QLA_FN_V_veq_c_times_V(nc,c,z,b,n)

where nc specifies the number of colors. In normal practice, the value of the argument nc should be derived from the required user-defined macro QLA_Nc specifying the prevailing number of colors. The generic function is actually a macro and is automatically converted to this usage with QLA_Nc for the first argument. However, if the specific name is used, the user must supply the argument.