added files particular to portable_archive

doc/tutorial/code/tutorial_pba_1.cpp

@@ -0,0 +1,68 @@
+/** tutorial_pba_1.cpp
+ *
+ * (C) Copyright 2011 François Mauger, Christian Pfligersdorffer
+ *
+ * Use, modification and distribution is subject to the Boost Software
+ * License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
+ * http://www.boost.org/LICENSE_1_0.txt)
+ *
+ */
+
+/**
+ * The intent of this program is to serve as a tutorial for
+ * users of the portable binary archive in the framework of 
+ * the Boost/Serialization package. 
+ *
+ * This quick start example shows how to load some variables
+ * of basic types (bool, integer, floating point numbers, STL string) 
+ * using the portable binary archive format associated to a 
+ * standard input file stream. 
+ *
+ */
+
+#include <iostream>
+#include <string>
+#include <fstream>
+
+#include <boost/cstdint.hpp>
+#include <boost/archive/portable_binary_iarchive.hpp>
+
+int main (void)
+{
+  using namespace std;
+
+  // The name for the example data file :  
+  string filename = "pba_0.data"; 
+
+  // Some variables of various types :
+  bool     b;
+  char     c;
+  uint32_t answer;
+  float    computing_time;
+  double   e;
+  string   slogan;
+   
+  // Open an input file stream in binary mode :
+  ifstream fin (filename.c_str (), ios_base::binary);
+  
+  {
+    // Create an input portable binary archive attached to the input file :
+    boost::archive::portable_binary_iarchive ipba (fin);
+    
+    // Loading (de-serializing) variables using the same 
+    // order than for serialization (see tutorial_pba_0.cpp) :
+    ipba & b & c & answer & computing_time & e & slogan;
+  }
+
+  cout.precision (15);
+  cout << "Variable 'b' is              : " << b << " " << "(bool)" << endl;
+  cout << "Variable 'c' is              : '" << c << "' " << " " << "(char)" << endl;
+  cout << "Variable 'answer' is         : " << answer  << " " << "(unsigned 32-bit integer)" << endl;
+  cout << "Variable 'computing_time' is : " << computing_time  << " " << "(single precision 32-bit float)" << endl;
+  cout << "Variable 'e' is              : " << e  << " " << "(double precision 64-bit float)" << endl;
+  cout << "Variable 'slogan' is         : \"" << slogan  << "\" " << "(std::string)" << endl;
+
+  return 0;   
+}
+
+// end of tutorial_pba_1.cpp