27 lines
1017 B
Markdown
27 lines
1017 B
Markdown
[allocator.requirements.completeness]
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# 16 Library introduction [[library]](./#library)
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## 16.4 Library-wide requirements [[requirements]](requirements#allocator.requirements.completeness)
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### 16.4.4 Requirements on types and expressions [[utility.requirements]](utility.requirements#allocator.requirements.completeness)
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#### 16.4.4.6 *Cpp17Allocator* requirements [[allocator.requirements]](allocator.requirements#completeness)
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#### 16.4.4.6.2 Allocator completeness requirements [allocator.requirements.completeness]
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[1](#1)
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[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/lib-intro.tex#L2964)
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If X is an allocator class for type T,X additionally meets the allocator completeness requirements if,
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whether or not T is a complete type:
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- [(1.1)](#1.1)
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X is a complete type, and
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- [(1.2)](#1.2)
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all the member types of [allocator_traits<X>](allocator.traits "20.2.9 Allocator traits [allocator.traits]") other than value_type are complete types[.](#1.sentence-1)
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