35 lines
930 B
ReStructuredText
35 lines
930 B
ReStructuredText
.. title:: clang-tidy - misc-dangling-handle
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misc-dangling-handle
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====================
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Detect dangling references in value handlers like
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``std::experimental::string_view``.
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These dangling references can come from constructing handles from temporary
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values, where the temporary is destroyed soon after the handle is created.
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By default only ``std::experimental::basic_string_view`` is considered.
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This list can be modified by passing a `;` separated list of class names using
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the HandleClasses option.
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Examples:
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.. code-block:: c++
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string_view View = string(); // View will dangle.
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string A;
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View = A + "A"; // still dangle.
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vector<string_view> V;
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V.push_back(string()); // V[0] is dangling.
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V.resize(3, string()); // V[1] and V[2] will also dangle.
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string_view f() {
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// All these return values will dangle.
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return string();
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string S;
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return S;
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char Array[10]{};
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return Array;
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}
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