ir_back            30 maint/gnulib/lib/i-ring.c   ir->ir_back = 0;
ir_back            49 maint/gnulib/lib/i-ring.c   if (dest_idx == ir->ir_back)
ir_back            50 maint/gnulib/lib/i-ring.c     ir->ir_back = (ir->ir_back + !ir->ir_empty) % I_RING_SIZE;
ir_back            63 maint/gnulib/lib/i-ring.c   if (ir->ir_front == ir->ir_back)
ir_back            36 maint/gnulib/lib/i-ring.h   unsigned int ir_back;