compiler-explorer | Run compilers interactively from your web browser

by compiler-explorer TypeScript Version: gh-7722 License: BSD-2-Clause

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

kandi X-RAY | compiler-explorer Summary

compiler-explorer is a TypeScript library typically used in Editor applications. compiler-explorer has no bugs, it has no vulnerabilities, it has a Permissive License and it has medium support. You can download it from GitHub.

Compiler Explorer is an interactive compiler exploration website. Edit code in C, C++, C#, F#, Rust, Go, D, Haskell, Swift, Pascal, ispc, Python, Java or in any of the other 30+ supported languages, and see how that code looks after being compiled in real time. Multiple compilers are supported for each language, many different tools and visualisations are available, and the UI layout is configurable (thanks to GoldenLayout). Try out at godbolt.org, or run your own local instance. Compiler Explorer follows a Code of Conduct which aims to foster an open and welcoming environment. Compiler Explorer was started in 2012 to show how C++ constructs translated to assembly code. It started out as a tmux session with vi running in one pane and watch gcc -S foo.cc -o - running in the other. Since then, it has become a public website serving around 3,000,000 compilations per week. You can financially support this project on Patreon, GitHub, Paypal, or by buying cool gear on the Compiler Explorer store.

Support

Quality

Security

License

Reuse

Support

compiler-explorer has a medium active ecosystem.

It has 13369 star(s) with 1493 fork(s). There are 235 watchers for this library.

It had no major release in the last 6 months.

There are 643 open issues and 2079 have been closed. On average issues are closed in 248 days. There are 20 open pull requests and 0 closed requests.

It has a neutral sentiment in the developer community.

The latest version of compiler-explorer is gh-7722

Quality

compiler-explorer has 0 bugs and 0 code smells.

Security

compiler-explorer has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

compiler-explorer code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

compiler-explorer is licensed under the BSD-2-Clause License. This license is Permissive.

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

Reuse

compiler-explorer releases are not available. You will need to build from source code and install.

It has 3096 lines of code, 92 functions and 399 files.

It has high code complexity. Code complexity directly impacts maintainability of the code.

Top functions reviewed by kandi - BETA

kandi has reviewed compiler-explorer and discovered the below as its top functions. This is intended to give you an instant insight into compiler-explorer implemented functionality, and help decide if they suit your requirements.

Format an AS instruction
Main execution function .
Main function
Creates a new Editor editor .
Runs Wine . js server
Executes a command .
Construct a new Compiler instance .
Sets up the Policy
Constructor for tool .
make an array of edges for a list

Get all kandi verified functions for this library.

compiler-explorer Key Features

No Key Features are available at this moment for compiler-explorer.

compiler-explorer Examples and Code Snippets

No Code Snippets are available at this moment for compiler-explorer.

Community Discussions

Trending Discussions on compiler-explorer

Why is std::ranges::views::take using templated type for difference?

C++20 [[no_unique_address]] not working with clang's win32-coff target

static assertion failed with unordered map when using non-type template and empty lambda

Extending iterator of boost::filtered to support operator+ overload

Deduce type from `static constexpr` to `using`

Move tuple containing lambda

What's Clang's problem with my code? GCC and MSVC think it's fine

Why is SFINAE for one of the std::basic_string constructors so restrictive?

Class with constructor template requiring copyable argument is not copyable by itself

std::variant of std::string inside any class in constexpr context fails to compile

QUESTION

Why is std::ranges::views::take using templated type for difference?

Asked 2022-Apr-02 at 01:17

Signature of take is

...

ANSWER

Answered 2022-Apr-02 at 01:17

It is a minor thing but I wonder why DifferenceType is not some ssize type(practically int64_t on modern machines). Is this just to avoid warnings on comparisons of integers of different signednes, or is there some other design reason I am missing.

Iterators for different range adaptors have different difference_types. The calculation of difference_type is sometimes not as simple as you think.

Taking iota_view as an example, the standard deliberately uses IOTA-DIFF-T(W) to calculate its difference_type, which makes the difference_type of iota_view is __int128 and the difference_type of iota_view<__int128> is even a customized __detail::__max_diff_type in listdc++.

This is why the second parameter of views::take is a template and not a specific integer type, but note that the standard also has constraints on DifferenceType in [range.take.overview]:

The name views::take denotes a range adaptor object ([range.adaptor.object]). Let E and F be expressions, let T be remove_cvref_t, and let D be range_difference_t. If decltype((F)) does not model convertible_to, views::take(E, F) is ill-formed.

which requires that the DifferenceType must be convertible to R's difference_type, which also allows you to

Source https://stackoverflow.com/questions/71713307

QUESTION

C++20 [[no_unique_address]] not working with clang's win32-coff target

Asked 2022-Mar-18 at 17:21

While working with clang-13 in C++20, I noticed that the x86_64-pc-win32-coff cross-compile target seems to outright reject the [[no_unique_address]] attribute. This attribute is otherwise supported for other targets that I tested with.

Consider this minimal example:

...

ANSWER

Answered 2022-Mar-18 at 17:21

no_unique_address is something whose primary support has to be handled at the ABI level. Both the Itanium ABI and Microsoft's de-facto ABI (aka: whatever MSVC does) support no_unique_address... kinda.

See, Microsoft is not at present willing to cause an ABI break. And since the attribute does nothing under a C++17 build, this would mean that compiling the same header for C++17 and C++20 could cause ODR violations.

So instead, they're holding off on fully implementing the attribute. They have the code ready to go in the compiler (and you can even use the MSVC-specific attribute msvc::no_unique_address to get the same effect). But until they do an ABI break, they don't intend to support it.

As such, Clang appears to be following Microsoft's lead on this.

Source https://stackoverflow.com/questions/71522331

QUESTION

static assertion failed with unordered map when using non-type template and empty lambda

Asked 2022-Mar-07 at 15:42

The following class will trigger a static assert error within std::map due to differing value_types of the allocator, despite the allocator being defaulted:

...

ANSWER

Answered 2022-Mar-07 at 15:42

Seems to be a bug with how gcc substitutes default arguments to template parameters involving unevaluated lambda types.

A similar example:

Source https://stackoverflow.com/questions/71382976

QUESTION

Extending iterator of boost::filtered to support operator+ overload

Asked 2022-Feb-21 at 03:07

I would like to add a operator+ overload to boost::filter_iterator as in below example. However I am getting an error in the resolution of the template parameters to the operator+ overload function.

...

ANSWER

Answered 2022-Feb-21 at 03:07

Source https://stackoverflow.com/questions/71190418

QUESTION

Deduce type from `static constexpr` to `using`

Asked 2022-Feb-11 at 07:06

is it possible to "deduce" the type of a static constexpr to a using?

https://compiler-explorer.com/z/hKzqhv7Pa

...

ANSWER

Answered 2022-Feb-11 at 06:53

decltype(BAR) does work. It just returnrs a const type, so the assignment in main fails. Use std::remove_const_t.

Source https://stackoverflow.com/questions/71076119

QUESTION

Move tuple containing lambda

Asked 2022-Feb-08 at 10:09

I am trying to implement a generic RAII cleanup. This looked like it was working, until I tried to use the move constructor:

...

ANSWER

Answered 2022-Feb-08 at 10:09

Your issue is that lambda is not default constructible (non-capturing ones are since C++20).

You might change constructor to:

Source https://stackoverflow.com/questions/71031763

QUESTION

What's Clang's problem with my code? GCC and MSVC think it's fine

Asked 2022-Feb-05 at 10:17

I'm working on an Advent of Code challenge (2021 day 18). Just as a test I tried compiling it on different compilers. While GCC (11.2) and MSVC (19.30) think it's fine, Clang (13.0.0) throws a list of errors. link to compiler explorer

...

ANSWER

Answered 2022-Feb-05 at 10:17

Your type is an aggregate

Source https://stackoverflow.com/questions/70996917

QUESTION

Why is SFINAE for one of the std::basic_string constructors so restrictive?

Asked 2022-Jan-28 at 12:53

Background

Discussion about this was started under this answer for quite simple question.

Problem

This simple code has unexpected overload resolution of constructor for std::basic_string:

...

ANSWER

Answered 2022-Jan-05 at 12:05

Maybe I'm wrong, but it seems that last part:

Source https://stackoverflow.com/questions/70591571

QUESTION

Class with constructor template requiring copyable argument is not copyable by itself

Asked 2022-Jan-27 at 22:25

In the following program struct A has a constructor template A(T) requiring that the type T be copy-constructible. At the same time A itself must have implicitly defined copy-constructor:

...

ANSWER

Answered 2022-Jan-27 at 22:25

TLDR

Given the following examples A (OP's example), B and C:

Source https://stackoverflow.com/questions/70874679

QUESTION

std::variant of std::string inside any class in constexpr context fails to compile

Asked 2022-Jan-11 at 09:42

The following code

...

ANSWER

Answered 2022-Jan-11 at 09:42

The bug has been fixed and the example now compiles.

Source https://stackoverflow.com/questions/70541636

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

Vulnerabilities

No vulnerabilities reported

Install compiler-explorer

You can download it from GitHub.

Support

We run a Compiler Explorer Discord, which is a place to discuss using or developing Compiler Explorer. We also have a presence on the cpplang Slack channel #compiler_explorer and we have a public mailing list. There's a development channel on the discord, and also a development mailing list. Feel free to raise an issue on github or email Matt directly for more help.

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