tmp/tmpm8bsitl6/{from.md → to.md}
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### [[stmt.stmt]]: statements <a id="diff.cpp20.stmt">[[diff.cpp20.stmt]]</a>
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**Change:** The lifetime of temporary objects in the
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*for-range-initializer* is extended until the end of the loop
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[[class.temporary]]. **Rationale:** Improve usability of the range-based
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`for` statement. **Effect on original feature:** Destructors of some
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temporary objects are invoked later. For example:
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``` cpp
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void f() {
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std::vector<int> v = { 42, 17, 13 };
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std::mutex m;
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for (int x :
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static_cast<void>(std::lock_guard<std::mutex>(m)), v) { // lock released in C++20
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std::lock_guard<std::mutex> guard(m); // OK in C++20, now deadlocks
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}
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}
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```
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