How do I pass an identifier to a macro?

See more:

C++20

The C++ code below will not compile w/ error C2065: 'buffer_identifier': undeclared identifier

I do not understand why the argument passed to DEBUG_ASSERT from HANDLE_NULL_BUFFER is not replaced by the argument passed to HANDLE_NULL_BUFFER

Kindly advise Thank You

#include <cassert>

#define DEBUG_ASSERT(assert_condition) { assert(assert_condition); }
#define HANDLE_NULL_BUFFER(buffer_identifer) DEBUG_ASSERT(buffer_identifier != nullptr)

void foobar(void* buffer)
{
	HANDLE_NULL_BUFFER(buffer) // error C2065: 'buffer_identifier': undeclared identifier
}

What I have tried:

I removed much other processing resulting in this simplest demonstration of the error