first commit

extern/stdcxx/4.2.1/examples/tutorial/spell.cpp

@@ -0,0 +1,78 @@
+/**************************************************************************
+ *
+ * spell.cpp - A spell checking program.
+ *
+ * $Id: spell.cpp 648752 2008-04-16 17:01:56Z faridz $
+ *
+ ***************************************************************************
+ *
+ * Licensed to the Apache Software  Foundation (ASF) under one or more
+ * contributor  license agreements.  See  the NOTICE  file distributed
+ * with  this  work  for  additional information  regarding  copyright
+ * ownership.   The ASF  licenses this  file to  you under  the Apache
+ * License, Version  2.0 (the  "License"); you may  not use  this file
+ * except in  compliance with the License.   You may obtain  a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the  License is distributed on an  "AS IS" BASIS,
+ * WITHOUT  WARRANTIES OR CONDITIONS  OF ANY  KIND, either  express or
+ * implied.   See  the License  for  the  specific language  governing
+ * permissions and limitations under the License.
+ *
+ * Copyright 1994-2006 Rogue Wave Software.
+ * 
+ **************************************************************************/
+
+#include <fstream>
+#include <iostream>
+#include <iterator>
+#include <set>
+#include <string>
+
+#include <examples.h>
+
+
+typedef
+    std::set <std::string,
+              std::less<std::string>, std::allocator<std::string> > stringset;
+typedef
+    std::ostream_iterator<std::string,
+                          char, std::char_traits<char> >            ostrm_iter;
+typedef
+    std::istream_iterator<std::string,
+                          char, std::char_traits<char>, 
+                          std::ptrdiff_t>  istrm_iter;
+
+
+void spellCheck (std::istream & dictionary, std::istream & text) {
+    
+    stringset   words, misspellings;
+    std::string word;
+    istrm_iter  eof, dstream (dictionary);
+
+    // First read the dictionary.
+    std::copy (dstream, eof, std::inserter (words, words.begin ()));
+
+    // Next read the text.
+    while (text >> word)
+        if (! words.count (word))
+            misspellings.insert (word);
+
+    // Finally, output all misspellings.
+    std::cout << std::endl << "Misspelled words:" << std::endl;
+
+    std::copy (misspellings.begin (), misspellings.end (),
+          ostrm_iter (std::cout, "\n"));
+}
+
+int main ()
+{
+    std::cout << "Enter text:";
+    std::ifstream words ("words");
+    spellCheck (words, std::cin);
+    std::cout << "End of spell check program" << std::endl;
+    return 0;
+}