type_erasure | This repo serves multiple purposes

by tzlaine JavaScript Version: Current License: MIT

X-Ray Key Features Code Snippets Community Discussions(10)Vulnerabilities Install Support

kandi X-RAY | type_erasure Summary

type_erasure is a JavaScript library. type_erasure has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. You can download it from GitHub.

This repo serves multiple purposes. Skip to the relevant section below, depending on what you came here for. Build instructions can be found at the end.

Support

Quality

Security

License

Reuse

Support

type_erasure has a low active ecosystem.

It has 65 star(s) with 2 fork(s). There are 9 watchers for this library.

It had no major release in the last 6 months.

There are 1 open issues and 22 have been closed. On average issues are closed in 1 days. There are no pull requests.

It has a neutral sentiment in the developer community.

The latest version of type_erasure is current.

Quality

type_erasure has no bugs reported.

Security

type_erasure has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

License

type_erasure is licensed under the MIT License. This license is Permissive.

Permissive licenses have the least restrictions, and you can use them in most projects.

Reuse

type_erasure releases are not available. You will need to build from source code and install.

Installation instructions are available. Examples and code snippets are not available.

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type_erasure Key Features

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type_erasure Examples and Code Snippets

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Community Discussions

Trending Discussions on type_erasure

Is boost dynamic_bitset header-only

Cross compiling boost fiber library on Linux for Windows

Failed to build boost 1.64.0 b2.exe Visual Studio 2017

Strange behavior with boost::any / any_ostreamable

Could not find the following Boost libraries: boost_fiber

How to evaluate equality for homogeneous collections?

C++ generic factory with multiple constructor signatures?

converting boost type erased type back to original type gives me boost::bad_any_cast

Dependency injection unit testing of type erasured code

references undefined when linking against boost 1.63 static libs

QUESTION

Is boost dynamic_bitset header-only

Asked 2019-Nov-03 at 05:33

By all initial indications, boost dynamic_bitset is header only.

The documentation implies that it is header only:

The class dynamic_bitset is defined in the header boost/dynamic_bitset.hpp. Also, there is a forward declaration for dynamic_bitset in the header boost/dynamic_bitset_fwd.hpp.

The library does not appear in the list of "non header-only" libraries in the Getting Started documentation:

Finally, the bootstrap.sh --show-libraries command on my local system with Boost 1.70.0 doesn't list dynamic_bitset as among those requiring separate build and installation:

...

ANSWER

Answered 2019-Nov-03 at 05:33

From the docs:

It should be noted that in practice bcp can produce a rather "fat" list of dependencies, reasons for this include:

It searches for library names first, so using "regex" as a name will give you everything in the libs/regex directory and everything that depends on. This can be a long list as all the regex test and example programs will get scanned for their dependencies. If you want a more minimal list, then try using the names of the headers you are actually including, or use the --scan option to scan your source code.

...

So, you are getting a fat list of dependencies because the search includes the tests and examples which are themselves not header-only, and have further non-header-only dependencies.

Is Boost dynamic_bitset really header-only

I see no reason to doubt that.

if so, how do I include only the relevant headers in my project?

As per the quoted suggestion, you might attempt instead: bcp --list boost/dynamic_bitset.hpp for a leaner list.

Source https://stackoverflow.com/questions/58677368

QUESTION

Cross compiling boost fiber library on Linux for Windows

Asked 2019-Mar-18 at 08:13

I am building boost libraries following way:

My ~/user-config.jam is:

...

ANSWER

Answered 2019-Mar-18 at 08:13

Seems like this is reported build bug: https://svn.boost.org/trac10/ticket/12520

if removing the c++11 requirements for fiber (but not for numa!), fiber crosscompiles fine

Source https://stackoverflow.com/questions/55205199

QUESTION

Failed to build boost 1.64.0 b2.exe Visual Studio 2017

Asked 2019-Feb-14 at 06:00

I was following these instructions

https://studiofreya.com/2017/04/23/building-boost-1-64-with-visual-studio-2017/

for building boost on windows 10. It would suggest we can now build boost with 2017? A change since this question

...

ANSWER

Answered 2017-Jul-08 at 18:54

Of course...

set boost_dir=C:\Program Files\boost_1_64_0

must have "" to avoid the break. Silly Windows. set boost_dir="C:\Program Files\boost_1_64_0"

and we start to build!

Source https://stackoverflow.com/questions/44989615

QUESTION

Strange behavior with boost::any / any_ostreamable

Asked 2018-Nov-04 at 21:06

The following code prints 666666, though I wanted 12345.

What's wrong ? How to fix it ?

...

ANSWER

Answered 2018-Nov-04 at 21:06

You have dangling references to objects that no longer exist. The result is undefined behaviour when you follow the dangling references.

Reference based type erasure is reasonable as function APIs; otherwise it is a bad plan.

Source https://stackoverflow.com/questions/53145246

QUESTION

Could not find the following Boost libraries: boost_fiber

Asked 2018-Oct-25 at 10:39

I'm not familiar with boost. And I want to use the class in boost,like boost::context::fiber and boost::context::continuation. So, I download the newest version of boost 1.68. Build it by the instruction in official site.

First, run bootstrap and generate b2 file.

...

ANSWER

Answered 2018-Oct-25 at 10:39

fiber is a header only library, so nothing to link against and no need to add it as a component to find.

The list of compiled libraries is in the doc: https://www.boost.org/doc/libs/1_68_0/more/getting_started/unix-variants.html#header-only-libraries

Source https://stackoverflow.com/questions/52987202

QUESTION

How to evaluate equality for homogeneous collections?

Asked 2018-Jul-17 at 14:18

The case:

Consider the following:

...

ANSWER

Answered 2018-Jul-17 at 09:17

A possible solution is a protocol extension, instead of an operator it provides an isEqual(to function

Source https://stackoverflow.com/questions/51377304

QUESTION

C++ generic factory with multiple constructor signatures?

Asked 2018-May-23 at 07:31

Has anyone ever combined the classic generic factory by Andrei Alexandrescu (page 208 of Chapter 8 in Modern C++ Design) with the 'multifunction' capabilities of Boost.TypeErasure? That is, the flexibility to have several creator function signatures that vary with respect to number and type of parameters (but still have the same return type and are known at compile time).

In other words, how to combine this slightly simplified generic Factory:

...

ANSWER

Answered 2018-Feb-21 at 23:25

OK, I have a slightly ugly solution that doesn't use Boost.TypeErasure, it is C++14, but it does provide essentially the same functionality. It's multi-tiered, so the id numbering is per-factory (but you could number uniquely too). I'll write more soon, but I really have to go to sleep right now...

Source https://stackoverflow.com/questions/48819868

QUESTION

converting boost type erased type back to original type gives me boost::bad_any_cast

Asked 2018-May-09 at 09:32

I'm new to boost type erasure and I'm having problems converting the objects back into their original type. From how I understand the boost documentation I should be able to use boost::any_cast to convert the type-erased object back to their original type, but the following code fails with a bad_any_cast exception. What am I doing wrong? Thanks a bunch!

https://www.boost.org/doc/libs/1_67_0/doc/html/boost/any_cast.html

...

ANSWER

Answered 2018-May-09 at 09:32

You need to call boost::type_erasure::any_cast

Here is the corrected program:

Source https://stackoverflow.com/questions/50249390

QUESTION

Dependency injection unit testing of type erasured code

Asked 2018-Mar-17 at 23:48

In this talk Boris Schäling presented how to create factory system of different kind of connections (tcp vs udp) without runtime polymorphism. He used Boost Type Erasure: https://www.youtube.com/watch?v=Vo9F35G-Rfk&t=2706s The concept is very interesting, the code looks great. See below:

...

ANSWER

Answered 2018-Mar-17 at 23:48

But I started wondering: How would you test this code?

Like any other code. In fact, your main could be a test.

Traditionally you apply some kind of dependency injection so that you can inject stubs or mocks into the real code and test how they are called in the test code.

Not necessarily. Often over-stubbing/mocking leads to testing the mocks instead of your code.

But in this kind of code, using Boost Type Erasure, it seems rather hard.

How so? Erasure makes things easier, since all you have to mock is a "duck type" interface (the concept).

Always think about what you need to test, and how you'll be satisfied that it works.

Demo:

Source https://stackoverflow.com/questions/49342430

QUESTION

references undefined when linking against boost 1.63 static libs

Asked 2017-Jul-05 at 14:39

I'm linking against boost statically. When I do so, I get some undefined reference errors (below).

...

ANSWER

Answered 2017-Jul-05 at 14:39

That libinfinite.a needs to precede the boost libraries in the command line.

Source https://stackoverflow.com/questions/44927372

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install type_erasure

First, note that the code in this repo is written against the C++11 standard. It is known to work with Clang 3.4, GCC 4.9, and Visual Studio 2013. It may work with earier versions of Clang or GCC, but will not work with any earlier version of Visual Studio. To build the entire project, simply install CMake 3.0 and use it to build this repo. Specific steps are given at the end. Many of the examples have coverage tests that require headers from Boost.Test. The Boost.TypeErasure example also obviously requires Boost. Neither requires a compiled Boost library; the headers will suffice. If you want to build these items, define the CMake variable BOOST_ROOT (see below). If you do not want to build these items, it won't break anything not to define BOOST_ROOT. emtypen requires libclang headers and libs. If you want to build emtypen, define the CMake variable CLANG_ROOT (see below). If you do not want to build emtypen, it won't break anything not to define CLANG_ROOT. At the time of this writing, there are no pre-built Clang binaries built with Visual Studio 2013, but it's now very easy to build Clang from source with Visual Studio. There's a small wrinkle, however. CMake doesn't like import libs with extensions other than .lib, and libclang's is built as libclang.imp. There's probably some obscure CMake incantation that fixes this, but it's easier just to rename libclang.imp to libclang.lib. If you build Clang from sources, it will make your life much easier to install it somewhere, and then set CLANG_ROOT to the installed location. This will set up the directory structure expected by the emtypen build; the structure of the build products for the built-in-place Clang is different.
From a command shell, create a directory into which the build products will be generated, e.g. type_erasure/build.
Move into the build directory.
Execute cmake <path> [-DBOOST_ROOT=<path_to_boost>] [-DCLANG_ROOT=<path_to_clang>, where <path> is the relative path from your build directory to "type_erasure", e.g. ...

Support

For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .

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