std::align
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<tbody> </tbody>| definiert in Header <memory>
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void* align( std::size_t alignment, std::size_t size, void*& ptr, std::size_t& space ); |
(seit C++11) | |
Wenn es möglich ist,
size Byte Speicherplatz durch alignment in dem Puffer, um durch ausgerichtete ptr mit Länge space passen ändert die Funktion ptr um zu der ersten möglichen Anschrift dieser ausgerichtet Lagerung zeigen und abnimmt space durch die Anzahl von Bytes für die Ausrichtung verwendet . Wenn es unmöglich ist (der Puffer zu klein ist), tut align nichts .Original:
If it is possible to fit
size bytes of storage aligned by alignment into the buffer pointed to by ptr with length space, the function modifies ptr to point to the first possible address of such aligned storage and decreases space by the number of bytes used for alignment. If it is impossible (the buffer is too small), align does nothing.The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
You can help to correct and verify the translation. Click here for instructions.
Parameter
| alignment | - | die gewünschte Ausrichtung
Original: the desired alignment The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. |
| size | - | die Größe des Speichers ausgerichtet werden
Original: the size of the storage to be aligned The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. |
| ptr | - | Zeiger auf zusammenhängender Speicherung von mindestens
space BytesOriginal: pointer to contiguous storage of at least space bytesThe text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. |
| space | - | die Größe des Puffers, in dem zu bedienen
Original: the size of the buffer in which to operate The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. |
Rückgabewert
Der eingestellte Wert der
ptr oder Null-Zeiger-Wert, wenn der Platz zu klein ist .Original:
The adjusted value of
ptr, or null pointer value if the space provided is too small.The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
You can help to correct and verify the translation. Click here for instructions.
Beispiel
| This section is incomplete Reason: no example |
Siehe auch
| alignof operator | queries alignment requirements of a type (seit C++11) |
| alignas Spezifizierer | gibt an, dass der Speicher für die Variable durch bestimmte Menge (C++11) ausgerichtet werden soll
Original: specifies that the storage for the variable should be aligned by specific amount (C++11) The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. |
(C++11) |
definiert den Typ für die Verwendung als Speicher für initialisierten Arten von vorgegebener Größe Original: defines the type suitable for use as uninitialized storage for types of given size The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (Klassen-Template) |