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Difference between revisions of "cpp/named req/CopyAssignable"

From cppreference.com
< cpp‎ | named req
(match std)
m (mention lvalue in the intro sentence)
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Specifies that an instance of the type can be copy-assigned.
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Specifies that an instance of the type can be copy-assigned from an [[cpp/language/value_category|lvalue expression]].
  
 
===Requirements===
 
===Requirements===

Revision as of 12:48, 28 December 2013

Template:cpp/concept/title Template:cpp/concept/navbar

Specifies that an instance of the type can be copy-assigned from an lvalue expression.

Requirements

The type T satisfies CopyAssignable if

Given

  • v, an lvalue expression of type T or const T or an rvalue expression of type const 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 v is unchanged.

See also

checks if a type has a copy assignment operator
(class template) [edit]