calloc
来自cppreference.com
 |
This page has been machine-translated from the English version of the wiki using Google Translate.
The translation may contain errors and awkward wording. Hover over text to see the original version. You can help to fix errors and improve the translation. For instructions click here. |
| Defined in header <stdlib.h>
|
||
num對象的大小size和零初始化的數組分配內存. Original:
Allocates memory for an array of
num objects of size size and zero-initializes it. 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.
如果分配成功，則返回一個指針到最低的（第一個）位元組分配的內存塊，適當的任何對象類型相一致.
Original:
If allocation succeeds, returns a pointer to the lowest (first) byte in the allocated memory block that is suitably aligned for any object type.
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.
size是零，其行為是實現定義的（空指針可能會被退回，可能會被退回，可能無法用於訪問存儲或一些非空指針）Original:
If
size is zero, the behavior is implementation defined (null pointer may be returned, or some non-null pointer may be returned that may not be used to access storage)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.
目錄 |
[编辑] 參數
| num | - | 數目的對象
Original: number of objects The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. |
| size | - | 每個對象的大小
Original: size of each object The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. |
[编辑] 返回值
新分配的內存或NULL開始的指針，如果發生了錯誤。指針必須被釋放
free().Original:
Pointer to the beginning of newly allocated memory or NULL if error has occurred. The pointer must be deallocated with
free().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.
[编辑] 注釋
由於對齊的要求，分配的位元組數不一定等於
num*sizeOriginal:
Due to the alignment requirements, the number of allocated bytes is not necessarily equal to
num*size.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.
[编辑] 另請參閱
| C++ documentation for calloc
|
