19 lines
831 B
Markdown
19 lines
831 B
Markdown
[depr.static.constexpr]
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# Annex D (normative) Compatibility features [[depr]](./#depr)
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## D.7 Redeclaration of static constexpr data members [depr.static.constexpr]
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[1](#1)
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[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/future.tex#L148)
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For compatibility with prior revisions of C++, a constexpr static data member may be redundantly redeclared outside the class with no
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initializer ([[basic.def]](basic.def "6.2 Declarations and definitions"), [[class.static.data]](class.static.data "11.4.9.3 Static data members"))[.](#1.sentence-1)
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This usage is deprecated[.](#1.sentence-2)
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[*Example [1](#example-1)*: struct A {static constexpr int n = 5; // definition (declaration in C++ 2014)};
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constexpr int A::n; // redundant declaration (definition in C++ 2014) â *end example*]
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