#define NOARGC  /* no arg count passing */›#define FIXARGC /* don't expect arg counts passed in */›#include <stdio.h>›/*›** utoi -- convert unsigned decimal string to integer nbr›**          returns field size, else ERR on error›*/›#define ERR -1›utoi(decstr, nbr)  ›char *decstr;  ›int *nbr;  ›$(›  int d,t; d=0;›  *nbr=0;›  while((*decstr>='0')&(*decstr<='9')) ›    $(›    t=*nbr;t=(10*t) + (*decstr++ - '0');›    if ((t>=0)&(*nbr<0)) return ERR;›    d++; *nbr=t;›    $)›  return d;›$)›