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add example to R.20

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addresses #1015
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Bjarne Stroustrup 2017-09-17 17:54:33 -04:00
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CppCoreGuidelines.md
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@ -1,6 +1,6 @@
# <a name="main"></a>C++ Core Guidelines # <a name="main"></a>C++ Core Guidelines
August 11, 2017 September 17, 2017
Editors: Editors:
@ -9103,6 +9103,8 @@ Consider:
X* p1 { new X }; // see also ??? X* p1 { new X }; // see also ???
unique_ptr<T> p2 { new X }; // unique ownership; see also ??? unique_ptr<T> p2 { new X }; // unique ownership; see also ???
shared_ptr<T> p3 { new X }; // shared ownership; see also ??? shared_ptr<T> p3 { new X }; // shared ownership; see also ???
auto p4 = make_unique<X>(); // unique_ownership, preferable to the explicit use "new"
auto p5 = make_shared<X>(); // shared ownership, preferable to the explicit use "new"
} }
This will leak the object used to initialize `p1` (only). This will leak the object used to initialize `p1` (only).