[Boost-bugs] [Boost C++ Libraries] #10182: Header order dependency for boost/multiprecision/random.hpp

Subject: [Boost-bugs] [Boost C++ Libraries] #10182: Header order dependency for boost/multiprecision/random.hpp
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2014-07-07 18:18:55

#10182: Header order dependency for boost/multiprecision/random.hpp
-------------------------------------------------+-------------------------
 Reporter:  pcfreak <coolpcfreak@…>              |      Owner:  johnmaddock
     Type:  Bugs                                 |     Status:  new
Milestone:  To Be Determined                     |  Component:
  Version:  Boost 1.54.0                         |  multiprecision
 Keywords:  multiprecision random                |   Severity:  Problem
  uniform_int_distribution                       |
-------------------------------------------------+-------------------------
 Using boost/multiprecision/random.hpp requires that it gets included
 before boost/random/uniform_int_distribution.hpp when using it in
 combination with that.\\
 See example code:
 {{{
 #!cpp
 #include <gmp.h>
 #include <cstdlib>
 #include <iostream>
 #include <boost/multiprecision/gmp.hpp>
 //#include <boost/multiprecision/random.hpp> // fails unless this header
 is included first
 #include <boost/random/random_device.hpp>
 #include <boost/random/uniform_int_distribution.hpp>
 #include <boost/multiprecision/random.hpp> // does not work if included
 here

 using namespace std;
 using namespace boost;

 int main() {
         typedef multiprecision::number<multiprecision::gmp_int> MpzInt;
         random::random_device rndDevice;
         MpzInt rndRangeTo(MpzInt(1) << 256);
         const MpzInt rndRangeFrom(rndRangeTo >> 1);
         random::uniform_int_distribution<MpzInt> rndRange(rndRangeFrom,
 rndRangeTo);
         const MpzInt rndValue(rndRange(rndDevice));
         cout << rndValue << endl;

         return EXIT_SUCCESS;
 }
 }}}

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/10182>
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