memcpy
- Updated2023-02-21
- 1 minute(s) read
memcpy
void *memcpy (void *targetBuffer, const void *sourceBuffer, size_t numberOfBytes);
Purpose
Copies a specified number of bytes from a source buffer to a target buffer. If copying takes place between objects that overlap, the behavior is undefined. To copy between a source and target that overlap, use memmove instead.
Parameters
| Input | ||
| Name | Type | Description |
| sourceBuffer | const void * | Contains a pointer to the source buffer from which the specified bytes are copied. The contents of this parameter remain unchanged. |
| numberOfBytes | size_t | Specifies the number of bytes from the source buffer that are copied to the target buffer. |
| Output | ||
| Name | Type | Description |
| targetBuffer | void * | Contains a pointer to the target buffer to which the specified bytes are copied. |
Return Value
| Name | Type | Description |
| returnedTargetBuffer | void * | Contains a pointer to the target buffer. |
Additional Information
Library: ANSI C Library
Include file: ansi_c.h
LabWindows/CVI compatibility: LabWindows/CVI 3.0 and later
Example
Refer to apps\daqmthread\daqMT.cws for an example of using the memcpy function.