[ns] How to set node frequency in C++ ?

[Su Jinzhao]

Hi All,

      There is only one interface in my simulation network, I want to
switch some nodes frequency to another channel with new center frequency in
C++, my code snippet is like this:

                 Tcl& tcl = Tcl::instance();
               tcl.evalf("$opt(netif) set freq_ %f",v[i].mid_freq);
               if(tcl.result() != TCL_OK)
                     cout << "set freq error!" << endl;

      Here the variable $opt(netif) is defined in my .tcl file, and the
result is print out "set freq error!", So How to set node frequency in C++
? any suggestions is appreciated.

-- 
Su Jinzhao(苏金钊)