ceph/src/boost/libs/type_traits/README.md

   1 Boost TypeTraits Library
   2 ============================
   3
   4 The Boost type-traits library contains a set of very specific traits classes, each of which encapsulate a single trait
   5 from the C++ type system; for example, is a type a pointer or a reference type? Or does a type have a trivial constructor, or a const-qualifier?
   6
   7 The type-traits classes share a unified design: each class inherits from the type true_type if the type has the specified property and inherits from false_type otherwise.
   8
   9 The type-traits library also contains a set of classes that perform a specific transformation on a type; for example, they can remove a top-level const or
  10 volatile qualifier from a type. Each class that performs a transformation defines a single typedef-member type that is the result of the transformation.
  11
  12 The full documentation is available on [boost.org](http://www.boost.org/doc/libs/release/libs/type_traits/index.html).
  13
  14 |                  |  Master  |   Develop   |
  15 |------------------|----------|-------------|
  16 | Travis           | [![Build Status](https://travis-ci.org/boostorg/type_traits.svg?branch=master)](https://travis-ci.org/boostorg/type_traits)  |  [![Build Status](https://travis-ci.org/boostorg/type_traits.svg)](https://travis-ci.org/boostorg/type_traits) |
  17 | Appveyor         | [![Build status](https://ci.appveyor.com/api/projects/status/lwjqu4087qiolje8/branch/master?svg=true)](https://ci.appveyor.com/project/jzmaddock/type-traits/branch/master) | [![Build status](https://ci.appveyor.com/api/projects/status/lwjqu4087qiolje8/branch/develop?svg=true)](https://ci.appveyor.com/project/jzmaddock/type-traits/branch/develop)  |
  18
  19
  20 ## Support, bugs and feature requests ##
  21
  22 Bugs and feature requests can be reported through the [Gitub issue tracker](https://github.com/boostorg/type_traits/issues)
  23 (see [open issues](https://github.com/boostorg/type_traits/issues) and
  24 [closed issues](https://github.com/boostorg/type_traits/issues?utf8=%E2%9C%93&q=is%3Aissue+is%3Aclosed)).
  25
  26 You can submit your changes through a [pull request](https://github.com/boostorg/type_traits/pulls).
  27
  28 There is no mailing-list specific to Boost TypeTraits, although you can use the general-purpose Boost [mailing-list](http://lists.boost.org/mailman/listinfo.cgi/boost-users) using the tag [type_traits].
  29
  30
  31 ## Development ##
  32
  33 Clone the whole boost project, which includes the individual Boost projects as submodules ([see boost+git doc](https://github.com/boostorg/boost/wiki/Getting-Started)):
  34
  35     git clone https://github.com/boostorg/boost
  36     cd boost
  37     git submodule update --init
  38
  39 The Boost TypeTraits Library is located in `libs/type_traits/`.
  40
  41 ### Running tests ###
  42 First, make sure you are in `libs/type_traits/test`.
  43 You can either run all the tests listed in `Jamfile.v2` or run a single test:
  44
  45     ../../../b2                        <- run all tests
  46     ../../../b2 config_info            <- single test
  47