sp                 19 polish.c         unsigned char **sp;                     /* current stack pointer          */ 
sp                 23 polish.c         sp = stack[0];
sp                 34 polish.c             if (sp != (unsigned char **) &stack[nest]) {
sp                 35 polish.c       	if (*(tempc = *--sp) == '*')
sp                 38 polish.c       	  *sp++ = tempc;
sp                 40 polish.c             *sp++ = *wda;
sp                 44 polish.c             while (sp != (unsigned char **) &stack[nest])
sp                 45 polish.c       	polish[i++] = *--sp;
sp                 46 polish.c             *sp++ = *wda;
sp                 49 polish.c             sp_save[nest] = sp;
sp                 54 polish.c             sp = stack[nest];
sp                 57 polish.c             while (sp != (unsigned char **) &stack[nest])
sp                 58 polish.c       	polish[i++] = *--sp;
sp                 63 polish.c             sp = sp_save[--nest];
sp                 76 polish.c         while (sp != (unsigned char **) &stack[nest])
sp                 77 polish.c           polish[i++] = *--sp;