memmove() - Buffer Manipulation Function
How to copy specified characters in a memory block in C++?
Explanation
memmove() buffer manipulation copies the specified count of characters from the block of array memory pointed by "str2" to "str1". Only if the arrays overlap, the copying will be done correctly. This function returns a pointer to "str1".
void * memmove ( void * str1, const void * str2, size_t count );
Result :
String: strings fine
In the above example, "memmove()" buffer manipulation function is used to copy the four characters "fine" alone from the block of memory.
Syntax:
void * memmove ( void * str1, const void * str2, size_t count );
Example :
| #include <stdio.h> #include <string.h> int main () { char str1[]="strings are fine"; memmove(str1+8,str1+11,4); printf ("String: %s\n",str1); return 0; } |
Result :
String: strings fine
In the above example, "memmove()" buffer manipulation function is used to copy the four characters "fine" alone from the block of memory.
