Function nfloat_complex_mat_mul_fixed 

pub unsafe extern "C" fn nfloat_complex_mat_mul_fixed(
    C: *mut gr_mat_struct,
    A: *const gr_mat_struct,
    B: *const gr_mat_struct,
    max_extra_prec: slong,
    ctx: *mut gr_ctx_struct,
) -> c_int