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Diffstat (limited to 'src/boost/libs/date_time/example/gregorian/period_calc.cpp')
-rw-r--r-- | src/boost/libs/date_time/example/gregorian/period_calc.cpp | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/src/boost/libs/date_time/example/gregorian/period_calc.cpp b/src/boost/libs/date_time/example/gregorian/period_calc.cpp new file mode 100644 index 000000000..31875fe95 --- /dev/null +++ b/src/boost/libs/date_time/example/gregorian/period_calc.cpp @@ -0,0 +1,86 @@ +/* +This example demonstrates a simple use of periods for the calculation +of date information. + +The example calculates if a given date is a weekend or holiday +given an exclusion set. That is, each weekend or holiday is +entered into the set as a time interval. Then if a given date +is contained within any of the intervals it is considered to +be within the exclusion set and hence is a offtime. + +Output: +Number Excluded Periods: 5 +20020202/20020203 +20020209/20020210 +20020212/20020212 +20020216/20020217 +In Exclusion Period: 20020216 --> 20020216/20020217 +20020223/20020224 + +*/ + + +#include "boost/date_time/gregorian/gregorian.hpp" +#include <set> +#include <algorithm> +#include <iostream> + +typedef std::set<boost::gregorian::date_period> date_period_set; + +//Simple population of the exclusion set +date_period_set +generateExclusion() +{ + using namespace boost::gregorian; + date_period periods_array[] = + { date_period(date(2002,Feb,2), date(2002,Feb,4)),//weekend of 2nd-3rd + date_period(date(2002,Feb,9), date(2002,Feb,11)), + date_period(date(2002,Feb,16), date(2002,Feb,18)), + date_period(date(2002,Feb,23), date(2002,Feb,25)), + date_period(date(2002,Feb,12), date(2002,Feb,13))//a random holiday 2-12 + }; + const int num_periods = sizeof(periods_array)/sizeof(date_period); + + date_period_set ps; + //insert the periods in the set + std::insert_iterator<date_period_set> itr(ps, ps.begin()); + std::copy(periods_array, periods_array+num_periods, itr ); + return ps; + +} + + +int main() +{ + using namespace boost::gregorian; + + date_period_set ps = generateExclusion(); + std::cout << "Number Excluded Periods: " << ps.size() << std::endl; + + date d(2002,Feb,16); + date_period_set::const_iterator i = ps.begin(); + //print the periods, check for containment + for (;i != ps.end(); i++) { + std::cout << to_iso_string(*i) << std::endl; + //if date is in exclusion period then print it + if (i->contains(d)) { + std::cout << "In Exclusion Period: " + << to_iso_string(d) << " --> " << to_iso_string(*i) + << std::endl; + } + } + + return 0; + +} + + + + +/* Copyright 2001-2004: CrystalClear Software, Inc + * http://www.crystalclearsoftware.com + * + * Subject to the Boost Software License, Version 1.0. + * (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt) + */ + |