How to work with functions correctly?

Question

C++ / C#

Good afternoon,

Faced with the difficulties of recreating "according to" a lesson from DarkTiger .
At the moment:

Let's insert the output of our string into the EntryPoint() function of our driver. In the variable declaration area, we add our variable of type CHAR16 (using double-byte character encoding UCS-2) in the MyFirstDriverDriverEntryPoint() function in MyFirstDriver.c:

CHAR16 *MyString = L"I have written my first UEFI driver\r\n";

After, at the very end of the MyFirstDriverDriverEntryPoint() function, paste the output code of our text variable to the output console (default screen, in our case):

gST->ConOut->OutputString(gST->ConOut, MyString);

And so I understood it like this:

EFI_STATUS
EFIAPI
MyFirstDriverDriverEntryPoint (
  IN EFI_HANDLE        ImageHandle,
  IN EFI_SYSTEM_TABLE  *SystemTable
  CHAR16 *MyString = L"I have written my first UEFI driver\r\n";
  )
{
  EFI_STATUS  Status;

  Status = EFI_SUCCESS;

  //
  // Install UEFI Driver Model protocol(s).
  //
  Status = EfiLibInstallDriverBindingComponentName2 (
             ImageHandle,
             SystemTable,
             &gMyFirstDriverDriverBinding,
             ImageHandle,
             &gMyFirstDriverComponentName,
             &gMyFirstDriverComponentName2
             );
  ASSERT_EFI_ERROR (Status);

  return Status;
}
  gST->ConOut->OutputString(gST->ConOut, MyString);

and got an error while compiling.

Where is the variable declaration area in the MyFirstDriverDriverEntryPoint() function ?

Insert the output of our string into a function

Does that mean put the given code inside the brackets () ?

After, at the very end of the MyFirstDriverDriverEntryPoint() function

Does that mean before the next function starts? Or at the end of the parenthesis?

Answer 1

Before return Status;
The scope of the function begins with the opening of the curly brace, respectively, the exit - when closing. I advise, before writing software products, to learn the language at an easier level