hpx/execution/executors/rebind_executor.hpp#
Defined in header hpx/execution/executors/rebind_executor.hpp.
See Public API for a list of names and headers that are part of the public HPX API.
rebind_executor, rebind_executor_t and create_rebound_policy.
rebind_executor and rebind_executor_t are defined in rebind_policy.hpp, next to the per-axis customization points built on top of them, and create_rebound_policy is defined in create_rebound_policy.hpp. This header includes both, so code that includes it directly keeps getting everything it provided before.