CODEWITHSUNDEEP
c++stllibstdc++c++-concepts
Kevin Chen
Kevin Chen

Reputation: 1026

Do any STL implementations support C++ concepts?

I am working on a class project which uses C++ concepts. Where can I find an STL implementation that supports has constraints from the concepts draft TS, such as Equality_comparable or Sortable?

Thanks for your help!

Here's what I tried so far:

I've successfully compiled the c++-concepts branch from GCC's SVN, which appears to be maintained (last updated yesterday by Andrew Sutton). However, the libstdc++ that comes with this branch has not been updated for concepts.

I also tried Concepts-Lite (gcc-clite), which promises:

The standard library shipping with this compiler includes the constraints found in the paper "A Concept Design for the STL", which can be accessed by including the <type_traits> header file.

However, libstdc++ in the GCC code downloaded from that page also does not have concepts. In particular, the type_traits header appears to be unchanged from the GCC revision it was forked from.

Upvotes: 2

Views: 864

Answers (1)

emsr
emsr

Reputation: 16373

Have a look at Andrew Sutton's Origin library on github. If you follow the origin/core directory you can find the basic concepts. He has some graph, math, and some container stuff stuff too from the look of it.

I have to admit that I'm in the middle of exploring this myself so I have no intelligent report yet.

Only downside: the most recent check-ins are a couple of months or more ago. I guess we'll see.

Upvotes: 2

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