C Reference String Operation: memcpy()

The function memcpy() copies n characters from source to target.

Usage:

void *memcpy(void *target, void *source, size_t count);

Note: If the copy takes place between objects that overlap, the behaviour is undefined.

memcpy() source code example:

	#include<stdio.h>
	#include<string.h>

	main()
	{
		char line[100];
		char *ptr_my;

		ptr_my=&line[0];
		strcpy(ptr_my, "aaa");

		memcpy(&ptr_my[3], "bbb", 3);
		ptr_my[6]='\0';

		printf("%s\n", ptr_my);
	}

Output of the example:

	aaabbb