cm_fm_config function

Hi,

What is the use of  this line " { 0,    (char *)0 }" in fm_bill_pol_custom_config function ? if we are not using this then what will be the impacts ?

struct cm_fm_config fm_bill_pol_custom_config[] = {

        /* opcode as a u_int, function name (as a string) */

/*

        { PCM_OP_BILL_POL_VALID_DISPUTE,        "op_bill_pol_valid_dispute" },

        { PCM_OP_BILL_POL_VALID_SETTLEMENT,     "op_bill_pol_valid_settlement" },

      { 0,    (char *)0 }

};

Regards,

Jeevan