Results for &#x201C;Threads &amp; shared ownership&#x201D;

Own one dynamically allocated value with unique_ptr

C++: make_unique allocates a value whose lifetime is tied to its owning smart pointer.

Provide read-only application configuration

Provide read-only application configuration with a small React component and explicit browser behavior.

Read a value from context

Read a value from context with a small React component and explicit browser behavior.

Read a variant only when it holds the expected type

C++: get_if returns a null pointer rather than throwing for another active alternative.

Represent an absent result with optional

C++: value_or supplies a default without requiring a sentinel inside the value domain.

Run cleanup through a scoped destructor

C++: A stack object’s destructor runs when its scope exits, including normal exception unwinding.

Separate state and dispatch contexts

Separate state and dispatch contexts with a small React component and explicit browser behavior.

Store a reference in a standard container

C++: reference_wrapper preserves reference semantics while behaving like a copyable container element.

CDynamic memory & ownership

Store a variable-length payload after a structure header

C: A flexible array member lets one allocation hold metadata and trailing bytes.

C✓ Tested

CDynamic memory & ownership

Swap owned buffers by swapping their pointers

C: Pointer swaps avoid copying the underlying data.

C✓ Tested

Use a context’s fallback value

Use a context’s fallback value with a small React component and explicit browser behavior.

Use React 19’s provider shorthand

Use React 19’s provider shorthand with a small React component and explicit browser behavior.