<div class="t-tr-text">C + +: conceitos<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> InputIterator
De cppreference.com
<metanoindex/>
Um InputIterator é um Iterator que pode ler a partir do elemento pontiagudo para.
Original:
An InputIterator is an Iterator that can read from the pointed-to element.
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Requisitos
Para além dos requisitos acima referidos, para um tipo It ser um InputIterator, instâncias a e b de It deve:
Original:
In addition to the above requirements, for a type It to be an InputIterator, instances a and b of It must:
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| Expression | Return | Equivalent expression | Notes |
|---|---|---|---|
a != b |
bool |
!(a == b) |
|
*a |
value_type |
If a == b equivalent to *b |
|
a->m |
(*a).m |
||
++a |
It& |
After this, copies of a may be invalidated
| |
a++ |
++a |
||
*a++ |
value_type
|
value_type t = *a; ++a; return t; |