Perhaps here is a critical bug of scope statement and scoped variable (RAII), please help me to veriry it

[redsea]

If comment the following:

    if (a == 0 )
        return;

output would be ok:

[tmp]root ./test
doScan {{{
<<<
>>>
doScan ok }}}
doScan {{{
<<<
>>>
doScan ok }}}
doScan {{{
<<<
>>>
doScan ok }}}
doScan {{{
<<<
>>>
doScan ok }}}
doScan {{{
<<<
>>>
doScan ok }}}
doScan {{{
<<<
>>>
doScan ok }}}
doScan {{{
<<<
>>>
doScan ok }}}
doScan {{{
<<<
>>>
doScan ok }}}