#define NOARGC  /* no arg count passing */›#define FIXARGC /* don't expect arg counts passed in */›/*›** return 'true' if c is a white-space character›*/›isspace(c) ›int c; ›$(›  /* first check gives quick exit in most cases */›  return(c<=' ' && (c==' ' || (c<=13 && c>=9)));›$)››