------entering main------
Test(): this->buf @ 0x1e1550
Test(): this->buf @ 0x1e1570
------before call f1------
f1():
Test(const Test&) called. this->buf @ 0x1e1590
a.buf @ 0x1e1590
Test(Test&&) called. this->buf @ 0x1e1590
Test(Test&&) called. this->buf @ 0x1e1590
~Test(): this->buf @ 0
~Test(): this->buf @ 0
------after f1 return------
------before call f2------
f2():
b.buf @ 0x1e1570
------after f2 return------
------before call f3------
f3():
Test(Test&&) called. this->buf @ 0x1e1550
~Test(): this->buf @ 0
------after f3 return------
------exiting main------
~Test(): this->buf @ 0x1e1590
~Test(): this->buf @ 0x1e1550
~Test(): this->buf @ 0x1e1570