use of deleted function - std::atomic

Question

This is the declaration I have in .h file:

static std::atomic<int> OrdersExecutorIdCounter;

This is initilization from .cpp file:

std::atomic<int> ActionBasedOrdersExecutor::OrdersExecutorIdCounter = 0;

It compiles just fine in VC++, but in gcc 4.8 I get this error:

error: use of deleted function ‘std::atomic<int>::atomic(const std::atomic<int>&)’

How can I solve this problem?

Answer 1

You can directly initialise the atomic variable, which does not require deleted copy constructor, eg:

std::atomic<int> ActionBasedOrdersExecutor::OrdersExecutorIdCounter{0};

Answer 2

You don't need (or want) to initialize your atomic integer to 0 (the int value would be 0 initialized for a global).