operator()

enables calling an std::hash object as a function with the object to be hashed as a parameter

std::size_t operator()(const cl::sycl::accessor<elemT, kDims, kMode, kTarget, isPlaceholder> & rhs) const

1. enables calling an std::hash object as a function with the object to be hashed as a parameter
   Parameters:
   • const cl::sycl::accessor<elemT, kDims, kMode, kTarget, isPlaceholder> & rhs