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The One-Definition Rule--Andrzej Krzemieński

By Adrien Hamelin | Nov 29, 2016 02:25 PM | Tags: intermediate

Something we should be aware of:

The One-Definition Rule

by Andrzej Krzemieński

From the article:

We have been hit by the same bug twice already this year. It ends in a crash, and it took developers days to find it (in each case), even though it is reproducible on each run of unit tests. The code, after significant simplifications, looks like this:

namespace tests
{
  struct Fixture
  {
    std::vector<int> v1;
    std::vector<int> v2;

    static Fixture create();
  };

  TEST_CASE(test1)
  {
    auto fixture = Fixture::create();
    std::cout << "running test1";
  }
}

Why you should use Boost.MultiIndex (Part II)--David Gross

By Adrien Hamelin | Nov 29, 2016 01:57 PM | Tags: intermediate community

The series continue:

Why you should use Boost.MultiIndex (Part II)

by David Gross

From the article:

A few weeks ago, I posted the first part of this article, where I explained the advantages of Boost.MultiIndex over the standard containers when you need to have multiple views on a set of data.

In this second part, I would like to talk about the benefits you can get from using Boost.MultiIndex as a single-index hash table, as a replacement of std::unordered_map.

One interesting and powerful aspect of Boost.MultiIndex is that it allows you to add an index of type T, where T is different from the stored type. And it is more frequent and useful that you could think.

Demystifying constexpr-Edouard from quasardb

By Adrien Hamelin | Nov 23, 2016 12:36 PM | Tags: intermediate c++14

Compilation time computations are good!

Demystifying constexpr

by Edouard from quasardb

From the article:

C++ 11 and C++ 14 came with a lot of new features. People tend to focus on lambdas and rvalue references, but today I’d like to talk about constexpr.

In this post we'll only talk about constant expressions as in C++ 14. There is absolutely no point to restrict yourself to C++ 11 in 2016. C++ 14 is really C++ 11 Service Pack 1, so if you missed the update, go straight to C++ 14!