#include <iostream>
// strlen cstring c library
#include <string.h> 
// C++ strings class
//#include <string> in iostream
//compare_find_memchr1.cpp
 using namespace std;
int main()
{
 //compare memchr and string.find
	char *chfind1;string str1; 
	size_t strfind1;
	char chstr1[] = "hello world";
	str1 = "hello world";
	chfind1=(char*) memchr(chstr1,'w',strlen(chstr1));

	strfind1 = str1.find("world");
	cout << "Letter w was found at : "<< chfind1-chstr1+1;
	cout<< "\n word world found at : "<< int(strfind1+1);
	return 0;
}