C++ Console App in IDA Pro find Actual Main Function

In C++

XorTesting.exe

has

XorTesting.cpp

which looks like

int main(int argc, char * argv[])
{
    if ((argc == 3 && strlen(argv[1]) == 1 && argv[1][0] == '0') ||
        (argc == 2 && strlen(argv[1]) == 1 && argv[1][0] == '1'))
    {
            .... more code ....
    }
}

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In IDA Pro here is how to find the actual main function
----------

----------
start proc
   jmp start_0
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----------
start_0 proc
   push ebp
   mov ebp, esp
   call sub_xxxxx1 (just calls init functions)
   pop ebp
   return
-----------

-----------
sub_xxxxx1 proc
  push ebp
  mov ebp, esp
  call sub_xxxxx2  (security cookie check)
  call sub_xxxxx3  (initializes and then calls actual main function)
  pop ebp
  ret
-----------

-----------
sub_xxxxx3 proc
  var_44= dword ptr -44h
  var_40= dword ptr -40h
  var_3C= dword ptr -3Ch
  ... many more ...
  push ebp
  mov ebp, esp
  push 0FFFFFFFEh
  ...
  call j__initterm
  ...
  call ds:___guard_check_icall_fptr
  ...
  call j__register_threat_local_exe_atexit_callback
  add esp, 4
  loc_xxxxxx:
    call sub_xxxxx4 (will end up calling the actual main function)
    ...
    call j_exit
    ... lots more code...
------------


------------
sub_xxxxx4 proc
  var_C= dword ptr -0Ch
  var_8= dword ptr -8h
  var_4= dword ptr -4h
  push ebp
  mov ebp, esp
  ...
  call j__get_initial_narrow_environment
  ...
  call j__p___argv
  ...
  call j__p___argc
  ...
  call j__sub_xxxxx5   (will end up calling the actual main function)
  add esp, 0Ch
  mov esp, ebp
  pop ebp
  return
-------------

-------------
sub_xxxxx5 proc
  jmp sub_xxxxx6   (the ACTUAL main function code)
-------------

-------------
sub_xxxxx6 proc
  var_178= dword ptr -178h
  var_174= dword ptr -174h
  var_168= dword ptr -168h
  ... many more ...
  push ebp
  mov ebp, esp
  sub esp, 178h
  ...
  rep stosd
  mov eax, __security_cookie
  ...
  cmp [ebp+arg_0], 3       (equivalent of C++   "if argc == 3")
  ...
  call j_strlen          (equivalent of c++ 'strlen' call)
  ... rest of code ...
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