added files particular to portable_archive

2026-01-30 20:22:09 +00:00 · 2016-02-15 10:51:46 -08:00
parent e15f94a77e
commit 14f3f5ea77
27 changed files with 5329 additions and 0 deletions
--- a/doc/tutorial/code/tutorial_pba_9.cpp
+++ b/doc/tutorial/code/tutorial_pba_9.cpp
@@ -0,0 +1,134 @@
+/** tutorial_pba_9.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 library. 
+ *
+ * This example shows how to load some variables of basic 
+ * types (bool, char, integer, floating point numbers, STL string) 
+ * using the text or XML archive format associated to a 
+ * standard file input stream supporting portable non-finite
+ * floating point values.
+ *
+ */
+
+#include <string>
+#include <fstream>
+#include <limits>
+#include <locale>
+
+#include <boost/cstdint.hpp>
+#include <boost/archive/xml_iarchive.hpp>
+#include <boost/archive/text_iarchive.hpp>
+#include <boost/serialization/nvp.hpp>
+#include <boost/scoped_ptr.hpp>
+#include <boost/archive/codecvt_null.hpp>
+#include <boost/math/special_functions/nonfinite_num_facets.hpp>
+
+using namespace std;
+
+void do_text_in (void)
+{
+  // The name for the example data text file :  
+  string filename = "pba_8.txt"; 
+  // Some variables of various primitive types :
+  bool        b;
+  char        c;
+  uint32_t    answer;
+  float       value;
+  double      precision;
+  string      question;
+  
+  // Open an input file stream :
+  ifstream fin (filename.c_str ());
+
+  // Prepare the input file stream for inf/NaN support :
+  locale default_locale (locale::classic (),
+			 new boost::archive::codecvt_null<char>);
+  locale infnan_locale (default_locale,
+			new boost::math::nonfinite_num_get<char>);
+  fin.imbue (infnan_locale);
+ 
+  {
+    // Create an input text archive attached to the input file :
+    boost::archive::text_iarchive ita (fin, boost::archive::no_codecvt);
+    
+    // Store (serializing) variables :
+    ita & b & c & answer & value & precision & question;
+  }
+
+  clog << "Loaded values from text archive are: " << endl;
+  clog << "  b         = " << b << endl;
+  clog << "  c         = '" << c << "'" <<  endl;
+  clog << "  answer    = " << answer << endl;
+  clog << "  value     = " << value << endl;
+  clog << "  precision = " << precision << endl;
+  clog << "  question  = \"" << question << "\"" << endl;
+
+  return;   
+}
+
+void do_xml_in (void)
+{
+  // The name for the example data text file :  
+  string filename = "pba_8.xml"; 
+
+  // Some variables of various primitive types :
+  bool        b;
+  char        c;
+  uint32_t    answer;
+  float       value;
+  double      precision;
+  string      question;
+  
+  // Open an input file stream :
+  ifstream fin (filename.c_str ());
+
+  // Prepare the input file stream for inf/NaN support :
+  locale default_locale (locale::classic (),
+			 new boost::archive::codecvt_null<char>);
+  locale infnan_locale (default_locale,
+			new boost::math::nonfinite_num_get<char>);
+  fin.imbue (infnan_locale);
+
+  {
+    // Create an output text archive attached to the output file :
+    boost::archive::xml_iarchive ixa (fin, boost::archive::no_codecvt);
+    
+    // Store (serializing) variables :
+    ixa & BOOST_SERIALIZATION_NVP(b)
+      & BOOST_SERIALIZATION_NVP(c)
+      & BOOST_SERIALIZATION_NVP(answer)
+      & BOOST_SERIALIZATION_NVP(value)
+      & BOOST_SERIALIZATION_NVP(precision) 
+      & BOOST_SERIALIZATION_NVP(question);
+  }
+
+  clog << "Loaded values from XML archive are: " << endl;
+  clog << "  b         = " << b << endl;
+  clog << "  c         = '" << c << "'" <<  endl;
+  clog << "  answer    = " << answer << endl;
+  clog << "  value     = " << value << endl;
+  clog << "  precision = " << precision << endl;
+  clog << "  question  = \"" << question << "\"" << endl;
+
+  return;   
+}
+
+int main (void)
+{
+  do_text_in ();
+  do_xml_in ();
+  return 0;
+}
+
+// end of tutorial_pba_9.cpp