memcpy, wmemcpy
Visual Studio .NET 2003
Copies characters between buffers.
void *memcpy( void *dest, const void *src, size_t count ); wchar_t *wmemcpy( wchar_t *dest, const wchar_t *src, size_t count );
Parameters
- dest
- New buffer.
- src
- Buffer to copy from.
- count
- Number of bytes to copy.
Return Value
The value of dest.
Remarks
Copies count bytes of src to dest. If the source and destination overlap, the behavior of memcpy is undefined. Use memmove to handle overlapping regions.
Security Note Make sure that the destination buffer is the same size or larger than the source buffer. For more information, see Avoiding Buffer Overruns.
Requirements
| Routine | Required header | Compatibility |
|---|---|---|
| memcpy | <memory.h> or <string.h> | ANSI, Win 98, Win Me, Win NT, Win 2000, Win XP |
| wmemcpy | <wchar.h> | ANSI, Win 98, Win Me, Win NT, Win 2000, Win XP |
For additional compatibility information, see Compatibility in the Introduction.
Libraries
All versions of the C run-time libraries.
Example
See memmove for a sample of how to use memcpy.
See Also
Buffer Manipulation Routines | _memccpy | memchr | memcmp | memmove | memset | strcpy | strncpy | Run-Time Routines and .NET Framework Equivalents
