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bugfix: Add error checking to list append and insert #4208

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Merged
merged 1 commit into from
Oct 3, 2022
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bugfix: Add error checking to list append and insert #4208

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12 changes: 9 additions & 3 deletions include/pybind11/pytypes.h
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Original file line number Diff line number Diff line change
Expand Up @@ -2022,14 +2022,20 @@ class list : public object {
detail::list_iterator end() const { return {*this, PyList_GET_SIZE(m_ptr)}; }
template <typename T>
void append(T &&val) /* py-non-const */ {
PyList_Append(m_ptr, detail::object_or_cast(std::forward<T>(val)).ptr());
if (PyList_Append(m_ptr, detail::object_or_cast(std::forward<T>(val)).ptr()) != 0) {
throw error_already_set();
}
}
template <typename IdxType,
typename ValType,
detail::enable_if_t<std::is_integral<IdxType>::value, int> = 0>
void insert(const IdxType &index, ValType &&val) /* py-non-const */ {
PyList_Insert(
m_ptr, ssize_t_cast(index), detail::object_or_cast(std::forward<ValType>(val)).ptr());
if (PyList_Insert(m_ptr,
ssize_t_cast(index),
detail::object_or_cast(std::forward<ValType>(val)).ptr())
!= 0) {
throw error_already_set();
}
}
};

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