v0.7.2

Small changes and bug fixes:

• The explicit casting constructor of oup::basic_observable_ptr would not move the deleter. This is now fixed.
• A call to oup::dynamic_pointer_cast on a null pointer would not move the deleter. This is now fixed.
• MSVC would report a false positive warning about a noexcept function that can throw. The warning is now silenced.
• Improved error message for over-aligned types in oup::make_observable.
• (internal only) Improved encapsulation of the ptr_and_deleter object.
• (internal only) Refactored the tests and increased coverage; using snitch instead of Catch2.

v0.7.1

Small changes and bug fixes:

• Fixed enable_observer_from_this* with policies that do not guarantee the existence of a block (i.e., custom policies that are not the default unique or sealed).
• Fixed leaks for non-sealed pointers, when allocation of the control block fails in the constructor or in reset().
• Fixed make_observable*() not aware of alignment constraints.
• Added early static_assert to catch misuse and generate clearer error messages.
• Various typos fixed, and documentation improved.

v0.7.0

Main changes:

• Added a casting constructor from owner pointer to basic_observer_ptr (#12).

Small changes and bug fixes:

• Fixed documentation error for basic_observer_ptr constructors.

v0.6.1

Small changes and bug fixes:

• Fixed "extra semicolon" warning
• Fixed "shift sign overflow" warning and "sign conversion" warning
• Fixed inconsistent line endings in the repository
• Setup and run clang-format for consistent formatting

v0.6.0

Main changes / breaking changes:

• Added basic_observable_ptr, basic_observer_ptr, basic_enable_observer_from_this and policies to fine tune their behavior and API.
• observable_unique_ptr, observable_sealed_ptr, observer_ptr are now defined as aliases to the above types with pre-configured policies, which are expected to be the most user-friendly / useful policies. But other choices of custom policies are viable and allowed.
• Breaking: enable_observer_from_this has been removed and is now replaced by enable_observer_from_this_unique (for observable_unique_ptr owners) and enable_observer_from_this_sealed (for observable_sealed_ptr owners).
• enable_observer_from_this_unique preserves the same API and behavior as the now defunct enable_observer_from_this, with the added benefit that calling observer_from_this() in constructors will return a valid, non-null pointer. The function is now guaranteed to always return a valid pointer, and is thus noexcept. However, the constructor of enable_observer_from_this_unique allocates, and thus cannot be noexcept.
• enable_observer_from_this_sealed requires the object T to take a control block as first argument of its constructor, to be forwarded to enable_observer_from_this_sealed. This enables calling observer_from_this() in the constructor. The function is now guaranteed to always return a valid pointer, and is thus noexcept.
• The memory footprint of the control block has been optimised.

Small changes and bug fixes:

• Improvements to the documentation.
• Added more compile-time tests.

v0.5.2

Small changes and bug fixes:

• Silence an unused-variable warning
• Fix CI failure for WebAssembly

v0.5.1

Small changes and bug fixes:

• Fixed operator bool() not marked const.
• Fixed compiler error with conversion operator= for owner pointers.

v0.5.0

Main changes:

• Added explicit casting constructors to observer_ptr.
• Added static_pointer_cast, const_pointer_cast, and dynamic_pointer_cast for all pointer types.

Small changes and bugfixes:

• Fixed explicit casting constructors for owner pointers leaking the control block when given a null pointer
• Fixed explicit casting constructor for sealed pointers forcing a T* as input, rather preserving the user's pointer type throughout. In theory this could have broken enable_observer_from_this in some edge cases (T* not inheriting from enable_observer_from_this, but user-supplied V* does). However in practice, the raw pointer must come from a sealed pointer, and will therefore already have its control block setup correctly. So this has no observable consequence.

v0.4.1

Small changes and bug fixes:

• Fixed observable_unique_ptr::reset(T*) incorrectly marked noexcept.
• Fixed enable_observable_from_this not supporting multiple inheritance, or storage in base-class owner pointer.
• Decreased memory usage of enable_observable_from_this.
• Added explicit checks against T[] since arrays are not supported.
• Fixed documentation errors

v0.4.0

Main changes:

• Added enable_observer_from_this.
• Fixed operator=(const T&) and swap(T&) not handling self-assignment and self-swap correctly.
• Fixed mismatched new[]/delete warnings in valgrind.

Small changes and bug fixes:

• Added code coverage tests.