[GiNaC-list] problem about cl_N output format

Hi all, I got a problem with the csrc_cl_N output format, for example, ex expr = pow(1+x(0),-6); expr.print(print_csrc_cl_N(cout)); I got an output as expt( x(0)+1, (--6)) and it seems that "--" should be only one "-". so is it normal or a bug?