memmove_s
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Header File
mem.h, string.h
Category
Memory and String Manipulation Routines
Prototype
void _FAR * _RESTRICT __dest, rsize_t __destmax, const void _FAR * _RESTRICT __src, rsize_t __n);
Description
Replaces memmove adding security enhancements.
memmove_s copies a block of __n bytes from __src to __dest. Even when the source and destination blocks overlap, bytes in the overlapping locations are copied correctly.
Return Value
memmove returns dest.
Example
#include <string.h>
#include <stdio.h>
int main(void)
{
char *dest = "abcdefghijklmnopqrstuvwxyz0123456789";
char *src = "******************************";
printf("destination prior to memmove: %s\n", dest);
memmove_s(dest, 26, src, 26);
printf("destination after memmove: %s\n", dest);
return 0;
}
Portability
| POSIX | Win32 | ANSI C | ANSI C++ | |
|---|---|---|---|---|
|
memmove_s |
+ |
+ |
+ |
+ |