atomic_fetch_sub

Global function atomic_sub. Calls sub on SYCL atomic object.

template <typename T, access::address_space addressSpace>
T atomic_fetch_sub(atomic<T, addressSpace> object, T operand, cl::sycl::memory_order mem_order)

1. Global function atomic_sub. Calls sub on SYCL atomic object.
   Parameters:
   • atomic<T, addressSpace> object : The atomic object to subtract from
   • T operand
   • cl::sycl::memory_order mem_order : The memory ordering to use. Only memory_order_relaxed
   Returns: The old value of *object