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Address review comments on operator[](json_pointer) rollback

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- undo() shrinks the array with resize() instead of erase()
- comments say what "will be" done in get_unchecked_create
- tests: avoid a clang-tidy performance-unnecessary-copy-initialization
  hit (unit-alt-string) and the word "access" in section names, which
  Flawfinder flags as race/access

Signed-off-by: Niels Lohmann <mail@nlohmann.me>
This commit is contained in:
Niels Lohmann committed 2026-10-27 08:05:36 +01:00
1 parent 9b2d0c6445
commit e1aa393226
4 files changed
+13 -13
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single_include/nlohmann/json.hpp
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+4 -4
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@@ -24875,7 +24875,7 @@ class json_pointer
case change::array_grown:
{
auto& elements = *m_value->m_data.m_value.array;
elements.erase(std::next(elements.begin(), static_cast<typename BasicJsonType::difference_type>(m_old_size)), elements.end());
elements.resize(m_old_size);
break;
}
case change::none:
@@ -25336,7 +25336,7 @@ class json_pointer
// explicitly treat "-" as index beyond the end
return array_append(*ptr);
}
// an element is appended in get_unchecked_create
// an element will be appended in get_unchecked_create
break;
}
if (token + 1 == end)
@@ -25347,14 +25347,14 @@ class json_pointer
const auto idx = array_index<BasicJsonType>(*token);
if (idx >= ptr->m_data.m_value.array->size())
{
// the array is padded in get_unchecked_create
// the array will be padded in get_unchecked_create
break;
}
ptr = &(*ptr->m_data.m_value.array)[idx];
}
else if (ptr->is_null())
{
// the null value is converted in get_unchecked_create
// the null value will be converted in get_unchecked_create
break;
}
else