#include <iostream>
// strlen cstring c library
//#include <string.h> 
//#include <string>
// with 
using namespace std;
//string_find_first_of1.cpp

int main()
{
 //compare strchr and string::find_first_of 
     string str1, str2; size_t strLength1; int n1; 
	 str2 = "Find First X-Ray X-man X-string ";  
	 cout <<" String length : " << str2.length() << endl; 
	 strLength1 =str2.find("First");
	 cout<<" string First @ " <<  strLength1 << endl;
	 strLength1 =str2.find_first_of("X-Ray");
	 n1 = strLength1; 
	 cout<<" string X-Ray @ " << strLength1  << " length "<< n1 <<endl;
	 strLength1 =str2.find_first_of("X-man");
	 n1 +=strLength1; 
	 cout<<" string X-man @ " << strLength1 << " Form beg " << n1<<endl; 
	  strLength1 =str2.find_first_of("X-string");
	 n1 +=strLength1; 
	 cout<<" string X-string @ " << strLength1  << " Form beg " << n1<<endl; 
	///
	 char *chptr1;
	 char chstr1[]= "Charcter Seq";
	 chptr1 = strchr(chstr1, 'e');
	 cout<<"\n strchr(chstr1, 'e') "<< chptr1; 
	 return 0;
}