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When an argument in a binary operation is a constant it is never subscripted by definition. The list of variants is shorter. For example, for multiplication of an SU(N) vector by a constant we have the following.
| function name | meaning | |
| 1 | QLA_V_eq_c_times_V(c,z,b) | c = z*b |
| 2 | QLA_V_veq_c_times_V(c,z,b,n) | c[i] = z*b[i] |
| 3 | QLA_V_xeq_c_times_V(c,z,b,j,n) | c[j[i]] = z*b[j[i]] |
| 5 | QLA_V_eq_c_times_xV(c,z,b,jb,n) | c[i] = z*b[jb[i]] |
| 6 | QLA_xV_eq_c_times_V(c,jc,z,b,n) | c[jc[i]] = z*b[i] |
| 8 | QLA_xV_eq_c_times_xV(c,jc,z,b,jb,n) | c[jc[i]] = z*b[jb[i]] |
| 12 | QLA_V_veq_c_times_pV(c,z,b,n) | c[i] = z*(*b[i]) |
| 15 | QLA_V_xeq_c_times_pV(c,z,b,j,n) | c[j[i]] = z*(*b[j[i]]) |
The scalar variant QLA_V_eq_C_times_V(c,z,b) is also in the library and is equivalent to variant 1 above.