$ bc -q
read()
2^D^D2
^ prints the result of read()'ed expression
function old new delta
zbc_program_print 629 642 +13
bc_program_read 322 312 -10
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/1 up/down: 13/-10) Total: 3 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>