28 lines
824 B
C++
28 lines
824 B
C++
/*
|
|
* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
|
|
*
|
|
* Copyright 2017 Danny Robson <danny@nerdcruft.net>
|
|
*/
|
|
|
|
#include "typeidx.hpp"
|
|
|
|
#include <atomic>
|
|
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
static std::atomic<int> counter;
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
int
|
|
cruft::detail::typeidx_next ()
|
|
{
|
|
// We can't return zero, but we want to optimise access to the static
|
|
// (which means we can't have it locally due to initialisation locking).
|
|
//
|
|
// Ensure we use pre-increment so that we can utilise zero static
|
|
// initialisation instead.
|
|
return ++counter;
|
|
}
|