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@@ -54,10 +54,9 @@ flowchart LR
user code. The destructor does not recurse, so destroying a deeply nested value does not exhaust the stack.
- **Bounded recursion.** The JSON parser and the binary readers keep their state in explicit stacks instead of
recursing per nesting level. Operations that walk a value, such as [`dump`](../api/basic_json/dump.md), copying,
comparison, hashing, and [`merge_patch`](../api/basic_json/merge_patch.md), recurse only up to a fixed depth and
continue with an explicit stack below it. Some operations, such as [`diff`](../api/basic_json/diff.md),
[`flatten`](../api/basic_json/flatten.md), and the binary writers, still recurse once per nesting level; work on them
is in progress. Applications that process untrusted input can limit its nesting depth with a
comparison, hashing, [`merge_patch`](../api/basic_json/merge_patch.md), [`diff`](../api/basic_json/diff.md),
[`flatten`](../api/basic_json/flatten.md), and the binary writers, recurse only up to a fixed depth and continue with
an explicit stack below it. Applications that process untrusted input can limit its nesting depth with a
[parser callback](../features/parsing/parser_callbacks.md).
- **Invariants are checked.** The class invariant (for instance, that the pointer for the stored type is never null) is
checked with runtime assertions throughout the test suite.