3.18. C++
call _ZNSt6vectorIiSaIiEE9push_backERKi ; std::vector<int,std::allocator<int>>::push_back(⤦
Çint const&)
lea eax, [esp+14h]
mov [esp], eax
call _Z4dumpP14vector_of_ints ; dump(vector_of_ints *)
mov eax, [esp+14h]
mov edx, [esp+18h]
sub edx, eax
cmp edx, 17h
ja short loc_8000246
mov dword ptr [esp], offset aVector_m_range ; "vector::_M_range_check"
call _ZSt20__throw_out_of_rangePKc ; std::__throw_out_of_range(char const*)loc_8000246: ; CODE XREF: main+19C
mov eax, [eax+14h]
mov [esp+8], eax
mov dword ptr [esp+4], offset aD ; "%d\n"
mov dword ptr [esp], 1
call __printf_chk
mov eax, [esp+14h]
mov eax, [eax+20h]
mov [esp+8], eax
mov dword ptr [esp+4], offset aD ; "%d\n"
mov dword ptr [esp], 1
call __printf_chk
mov eax, [esp+14h]
test eax, eax
jz short loc_80002AC
mov [esp], eax ; void
call _ZdlPv ; operator delete(void )
jmp short loc_80002AC
mov ebx, eax
mov edx, [esp+14h]
test edx, edx
jz short loc_80002A4
mov [esp], edx ; void *
call _ZdlPv ; operator delete(void *)loc_80002A4: ; CODE XREF: main+1FE
mov [esp], ebx
call _Unwind_Resume
loc_80002AC: ; CODE XREF: main+1EA
; main+1F4
mov eax, 0
lea esp, [ebp-0Ch]
pop ebx
pop esi
pop edi
pop ebp
locret_80002B8: ; DATA XREF: .eh_frame:08000510
; .eh_frame:080005BC
retn
main endp
.reserve()is inlined as well. It callsnew()if the buffer is too small for the new size, callsmemmove()to
copy the contents of the buffer, and callsdelete()to free the old buffer.
Let’s also see what the compiled program outputs if compiled with GCC:
_Myfirst=0x(nil), _Mylast=0x(nil), _Myend=0x(nil)
size=0, capacity=0
_Myfirst=0x8257008, _Mylast=0x825700c, _Myend=0x825700c
size=1, capacity=1
element 0: 1
_Myfirst=0x8257018, _Mylast=0x8257020, _Myend=0x8257020
size=2, capacity=2