C++ named requirements: CopyAssignable
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C++ named requirements
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CopyAssignable
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Specifies that an instance of the type can be copy-assigned from an lvalue expression.
[edit] Requirements
The type T satisfies CopyAssignable if
- The type
Tsatisfies MoveAssignable, and
Given
-
t, a modifiable lvalue expression of typeT, -
v, an lvalue expression of typeTorconst Tor an rvalue expression of typeconst T.
The following expressions must be valid and have their specified effects.
| Expression | Return type | Return value | Post-conditions |
|---|---|---|---|
| t = v | T&
|
t
|
The value of t is equivalent to the value of v.
The value of |