View difference between Paste ID: NFuc6VSx and 4ynw5fLD

-// Task: This program finds and email address from incoming forlder called mail.dat and uploads it to a file called addresses.dat.
+#include <fstream>
-//
+// using std::ofstream, std::ifstream
-//
+#include <iostream>
 // using std::cerr
-#include <iostream>							// including the iostream
+
 // using std::string
-#include <iomanip>
+
-#include <fstream>							// including the fstream for files
+int main()
 {
-using namespace std;
+  std::ifstream emails("mail.dat");
   std::ofstream addresses("addresses.dat");
-int main ()
+  if(! (emails && addresses)) {
     std::cerr << "Error opening" << std::endl;
     return 1;
-    ifstream emails; 						// declaring this as emails file stream
+  }
-    ofstream addresses;						// Declaring the output for addresses
+  for(std::string word; emails >> word; ) {
-
+    if(word.find('@') == std::string::npos)
-    emails.open("mail.dat");				//opening the file stream mail.dat
+      continue; // not a mail
-    addresses.open("addresses.dat");			//opening the file stream addresses.dat
+    std::string::size_type last_n = word.length() - 1;
-
+    char last = word[last_n];
-    string oneChar ;						//declaring a string of characters called
+    if(last == '>' || last == ',')
-											// onechar
+      word.erase(last_n);
     if(word[0] == '<')
-    string correct;							// declaring correct as the final correct string
+      word.erase(0, 1);
-									// output
+    if(! (addresses << word).put('\n')) {
       std::cerr << "Error writing" << std::endl;
-    char at = '@';							// declaring @ as a char
+      return 1;
     }
-    while(emails)		 					// doing a while loop to scan the documents
+  }
-    {
+  return 0;
-   	 if (oneChar.find(at) != string::npos)	// if string is not equal to '@' then do
+