atomic::fetch_sub Method
Subtracts a specified value from the stored value.
Ty atomic<Ty>::fetch_sub (
Ty Value,
memory_order Order = memory_order_seq_cst
) volatile _NOEXCEPT;
Ty atomic<Ty>::fetch_sub (
Ty Value,
memory_order Order = memory_order_seq_cst
) _NOEXCEPT;
Parameters
Value
A value of type Ty.Order
A memory_order.
Return Value
A Ty object that contains the result of the subtraction.
Remarks
The fetch_sub method performs a read-modify-write operation to atomically subtract Value from the stored value in *this, within the memory constraints that are specified by Order.
Requirements
Header: atomic
Namespace: std