Is east constexpr / constinit / consteval allowed in C++20?

Question

Most examples I found on the web preferred the "west style" for constexpr (C++11), consteval, and constinit (C++20):

consteval auto sqr(int n) {
  return n*n;
}
constexpr auto r = sqr(100);  // OK
constinit static auto x = r; 

Since I`m not a language lawyer, I have the following question: Is the "east style" allowed for these specifiers? Example:

auto consteval sqr(int n) {
  return n*n;
}
auto constexpr r = sqr(100);  // OK
static auto constinit x = r; 

To be clear: I do not intent to start a "west" / "east" language war. I'm not interested in opinions, just in facts, especially as clang and gcc head versions on wandbox at this moment give errors but no answers on constinit / consteval.

Answer 1

Sort of.

It's part of the decl-specifier-seq, and the specifiers in that can be in any order. It's the same rule that allows you to write volatile int static long unsigned inline long const x = 1;

But it isn't part of the declarator (in particular, the ptr-operator), so you can't do int* constexpr x = nullptr;.