[Boost-commit] svn:boost r73747 - sandbox/SOC/2011/checks/boost/checks

Subject: [Boost-commit] svn:boost r73747 - sandbox/SOC/2011/checks/boost/checks
From: pierre.talbot.6114_at_[hidden]
Date: 2011-08-14 13:11:16

Author: trademark
Date: 2011-08-14 13:11:15 EDT (Sun, 14 Aug 2011)
New Revision: 73747
URL: http://svn.boost.org/trac/boost/changeset/73747

Log:
Simple modulus 10 check. Should be the base of other check like Luhn.
Added:
   sandbox/SOC/2011/checks/boost/checks/modulus10.hpp   (contents, props changed)

Added: sandbox/SOC/2011/checks/boost/checks/modulus10.hpp
==============================================================================
--- (empty file)
+++ sandbox/SOC/2011/checks/boost/checks/modulus10.hpp	2011-08-14 13:11:15 EDT (Sun, 14 Aug 2011)
@@ -0,0 +1,42 @@
+//  Boost checks/modulus10.hpp header file  ------------------------------------//
+//  (C) Copyright Pierre Talbot 2011
+//  Distributed under 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
+//  See http://www.boost.org for updates, documentation, and revision history.
+
+#ifndef BOOST_CHECKS_MOD10_HPP
+#define BOOST_CHECKS_MOD10_HPP
+
+#include <boost/lexical_cast.hpp>
+#include <boost/checks/traduction_exception.hpp>
+
+namespace boost{
+  namespace checks{
+
+template <typename mod10_weight, unsigned int number_of_virtual_value_skipped = 0>
+struct modulus10_algorithm
+{
+  template <typename value>
+  static unsigned int traduce_to_valid_value(const value &current_value, const unsigned int valid_value_counter )
+  {
+    unsigned int valid_value = 0;
+    try{
+      valid_value = boost::lexical_cast<unsigned int>( current_value ) ;
+    }catch( boost::bad_lexical_cast ){
+      throw traduction_exception() ;
+    }
+    return valid_value ;
+  }
+
+  static void operate_on_valid_value( const int current_valid_value, const unsigned int valid_value_counter, int &checksum )
+  {
+    int current_weight = mod10_weight::weight_associated_with_pos( valid_value_counter + number_of_virtual_value_skipped )
+    checksum += current_valid_value * current_weight ;
+  }
+
+};
+
+}}
+
+#endif //BOOST_CHECKS_MOD10_HPP
\ No newline at end of file