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[concept.moveconstructible]
# 18 Concepts library [[concepts]](./#concepts)
## 18.4 Language-related concepts [[concepts.lang]](concepts.lang#concept.moveconstructible)
### 18.4.13 Concept move_constructible [concept.moveconstructible]
[🔗](#concept:move_constructible)
`template<class T>
concept [move_constructible](#concept:move_constructible "18.4.13Concept move_­constructible[concept.moveconstructible]") = [constructible_from](concept.constructible#concept:constructible_from "18.4.11Concept constructible_­from[concept.constructible]")<T, T> && [convertible_to](concept.convertible#concept:convertible_to "18.4.4Concept convertible_­to[concept.convertible]")<T, T>;
`
[1](#1)
[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/concepts.tex#L800)
If T is an object type, then let rv be an rvalue of typeT and u2 a distinct object of type T equal torv[.](#1.sentence-1)
T models [move_constructible](#concept:move_constructible "18.4.13Concept move_­constructible[concept.moveconstructible]") only if
- [(1.1)](#1.1)
After the definition T u = rv;, u is equal to u2[.](#1.1.sentence-1)
- [(1.2)](#1.2)
T(rv) is equal to u2[.](#1.2.sentence-1)
- [(1.3)](#1.3)
If T is not const, rv's resulting state is valid
but unspecified ([[lib.types.movedfrom]](lib.types.movedfrom "16.4.6.17Moved-from state of library types")); otherwise, it is unchanged[.](#1.3.sentence-1)