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

See Also

Reference

<atomic>

atomic Structure

atomic_fetch_sub_explicit Function