Olaf, Sort of, my pseudocode is wrong, but my patch works: last_ is set to begix_ - 1. end() is a function that returns last+1. At least it works on my linux. SB On Thu, Apr 30, 2015 at 4:56 AM, Olaf van der Spek wrote:

On Thu, Apr 30, 2015 at 12:27 AM, Scott Bailey wrote:

...

My changes to 'boost/date_time_time_period.hpp' follow. I have guarded them with DATE_TIME_NO_DEFAULT_CONSTRUCTOR and simply set begin to point_type() and end to begin_ -1;

Shouldn't end_ == begin_?

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Chris, Yes, you are right! It wasn't std::deque I had the problem with. In fact, it was std::map; specifically operator[](). Technically, I could work around that by using insert() and testing the return value and, if necessary, calling operator[](). But that's neither very elegant nor maintainable, in my opinion. Especially when I've yet to see a downside of adding a default constructor. Furthermore, I have other other container code that depends on default constructors. Sure, I could workaround period's lack of default constructor, but wheres the advantage in that? SB On Thu, Apr 30, 2015 at 11:31 AM, Chris Glover wrote:

...

But std::deque depends on (as does some of my other code) it's type

having

...

a default constructor. I'm surprised it does not already exists.

In what situation are you finding the std::deque requires an object to be default constructible? As far as I know this is simply not true for any std containers so I'd like to know how you've happened upon this.

-- chris

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