v2.0 - api updates (#15)

* Adding pipe operator

* API simplified with reduced overload set for deferred tasks. We no longer need to pass allocators when submitting tasks but instead bind a allocator type to the pool itself.

* Removed non portable includes

* Fixed calls to comparitors for windows

* API updated renaming task_pool.h to simply pool.h

* Adding noexcept where suitable

* Adding future api to task_pool

* Fixed bug not incrementing the wait list

* Improving coverage

* removed old header

* tewaking test for msvc in ci

* Trait fixes for msvc

CHANGELOG.md

@@ -0,0 +1,19 @@
+# v2.0
+Refined version reducing overload set by binding allocator to the pool itself and adding pipe operator and future api for function composition
+
+- [x] Remove allocator variants of task_pool::submit in favour of templating the task bool so that we do not need to pass allocators all the time.
+- [x] Change external API wait_for_tasks to wait()
+- [x] Pools should be future-like
+- [x] Dropping support for callables with templated call operators
+- [x] Reduced overload set of `submit` and `make_deferred_task`
+- [x] Allow pipeline tasks to take allocators and stop_tokens
+- [x] Changed `task_pool.h` to simply `pool.h`
+- [x] API is now const and noexcept correct ( to the best of my mortal abilities )
+# v1.0
+Initial version supporting full set of features
+
+- [x] Allow tasks from function pointers, free and member
+- [x] Allow cancelling tasks after started by passing token type
+- [x] Allow using custom allocators to allocate future states
+- [x] Allow using custom allocators to allocate tasks storage
+- [x] Allow using custom allocators inside tasks perform allocations

CMakeLists.txt

@@ -110,6 +110,9 @@ dynamic_project_options(
   --suppress=passedByValue
   --suppress=syntaxError
   --suppress=constParameter # buggy
+  --suppress=nullPointer    # buggy
+  --suppress=constStatement # doesnt like pipes
+  --suppress=throwInNoexceptFunction # does not know about new(std::nothrow)
   --inconclusive
 )