<div class="t-tr-text">C + +: concetti<div class="t-tr-dropdown"><div><div><div class="t-tr-dropdown-arrow-border"></div><div class="t-tr-dropdown-arrow"></div><div class="t-tr-dropdown-h">Original:</div><div class="t-tr-dropdown-orig">C++ concepts:</div><div class="t-tr-dropdown-notes">The text has been machine-translated via [http://translate.google.com Google Translate].<br/> You can help to correct and verify the translation. Click [http://en.cppreference.com/w/Cppreference:MachineTranslations here] for instructions.</div></div></div></div></div> EqualityComparable

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< cpp‎ | concept

 
 
C + + concetti
Di base
Original:
Basic
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Biblioteca-Wide
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Library-Wide
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EqualityComparable
LessThanComparable
Swappable(C++11)
ValueSwappable(C++11)
Container
Original:
Container
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Elementi contenitori
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Container Elements
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Iterator
Original:
Iterator
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Numeri casuali
Original:
Random Numbers
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Concorrenza
Original:
Concurrency
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Mutex(C++11)
TimedMutex(C++11)
Altro
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Other
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The type must work with == operator and the result should have standard semantics.


[modifica]Requisiti

ExpressionRequirementsReturn type
a == b
  • Commutativity (a == b yields the same as b == a)
  • Transitivity (if a == b and b == c, then a == c)
bool or a type implicitly convertible to bool
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