Example on how to use C++ regex_token_iterator

 #pragma once   
 #pragma warning(disable:4996)   
 #define _SCL_SECURE_NO_WARNINGS   
 #include "stdafx.h"  
 #include <fstream>  
 #include <iostream>  
 #include <regex>  
 #include <iterator>  
 #include <algorithm>  
 using namespace std;  
 int main() {  
      string seq("tatagcagtcccgctgtgtgtacgacactggcaacatgaggtctttgctaatcttggtagctttg");  
      regex e("(tata)([gatc]*)(tag)");  
      int submatches[] = { 1, 2, 3 };  
      sregex_token_iterator rend;  
      sregex_token_iterator a(seq.begin(), seq.end(), e, submatches);  
      while (a != rend) std::cout << " [" << *a++ << "]";  
      getchar();  
      return 0;  
 }  

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String.Compare is a better method to compare strings than String.Equal

String.Compare is a better method to compare strings than String.Equal

Below example illustrates how String.Compare handles nulls better than String.Equal


    class Program
    {
        static void Main(string[] args)
        {
            string A = "Hello World";
            string B = "Hello World";
            string C = null;

            if (String.Compare(B, A) == 0) { Console.WriteLine("A equals B"); }
            if (String.Compare(C, A) == 0) { Console.WriteLine("A equals C"); }
            if (B.Equals(A)) { Console.WriteLine("A equals B"); }
            try
            {
                if (C.Equals(A)) { Console.WriteLine("A equals C"); }
            }
            catch (Exception e)
            {
                Console.Write(e.Message);
            }

            Console.ReadKey();
        }
    }