Where can I find the difference between purge_memory and release_memory in Boost Singleton Pool? In here it says:
Singleton Usage is the method where each Pool is an object with static duration; that is, it will not be destroyed until program exit. Pool objects with Singleton Usage may be shared; thus, Singleton Usage implies thread-safety as well. System memory allocated by Pool objects with Singleton Usage may be freed through
release_memoryorpurge_memory.
Clicking a few links on your page leads to this page.
There you can read the following:
t.release_memory() bool t must be ordered. Frees every memory block that doesn't have any
allocated chunks. Returns true if at least one memory block was freed.
t.purge_memory() bool Frees every memory block. This function invalidates any pointers
previously returned by allocation functions of t. Returns true if at
least one memory block was freed.