I apologize if this question is out of topic, but it's a matter of accessibility for C++14 programmers.
Today i've updated Qt v5.4 on my PC (Windows 8.1/64bit/x86) and it support now the gcc compiler v4.9.2. But i've seen that constexpr relaxation (which really interest me) is available since gcc v5.1.
A search on google shows that :
clang is the better compiler for C++14 latest features (v3.6 is even dealing with experimental C++17)
clang is not easily suitable with Qt libraries
both gcc and clang "datas" are downloadable but i'm not an expert...
So i'm asking how to get a free IDE on Windows 8.1 with an adequate compiler.
If i dismiss Qt for my C++14 experiments, is Codeblocks a better solution ?
Does any else IDE already include an adequate compiler during the installation ?
Where can i find help to install such a compiler ?
Your question is poorly phrased -- for the most part, ide's and compilers are decoupled -- the exception that comes to mind is visual studio, which is an ide that is tightly coupled to microsoft's compiler.
Whether you chose codeblocks, or eclipse, or use a simple text editor, you should be able to choose your compiler fairly easily, and independently of your ide. So you have two independent questions: Where can you get a free compiler for windows with high standards compliance, and what's a good IDE with which to use that compiler.
I'm not a windows person, but very simple, one-file projects, you might actually find it easy to use a gnu-linux environment, which you can do under windows by using cygwin:
http://preshing.com/20141108/how-to-install-the-latest-gcc-on-windows/
This may seem daunting at first, but let me tell you the benefits:
you'll learn the difference between your compiler and editor.
As long as you are only experimenting with the standard, you may find it simpler to get set up than using an ide.
You'll have to learn about the c++ compile process (compiling, linking, possibly preprocessing), not about ide specific stuff.
This will prevent you from conflating ide-specific stuff with c++ stuff, as you have done in your question. As you begin working with projects you'll probably find an ide an advantage, but in the beginning staying close to the raw tools may give you the fastest learning return on investment.
After install cygwin, all you have to do is write your code (using a syntax highlighting editor like gedit or emacs is suggested), and then run
g++ -std=c++14 filename.cpp
to compile your code.
You should be able to use clang under cygwin as well.
My world is computational statistics and I thought I would try out forio-epicenter for creating applications. Clearly I am able to call Python functions from forio-epicenter. However, am I able to call a Python function that calls a C function?
That is possible, though it may be mildly tricky. You'll have to compile the C code to a shared library, and it'll have to be compiled for 64-bit Linux (Ubuntu, though that shouldn't really matter too much). That shared library will have to be uploaded to your model directory in Forio Epicenter.
For wrapping the C library, there are three possibilities, more or less. SWIG doesn't require any support from Forio to be usable, you'll build the Python wrapper off-line and upload it to your model directory. Cython or CFFI can both be supported, though as of this writing they aren't. If you're interested, let us know, and support can quickly be added for either of those solutions (and it is planned to do both eventually anyway).
Swig
Cython
Disclaimer: I currently work at Forio
Can someone point to me where I can find Finite Element Delphi library.
Preferably opensource.
Never tried, no releases, but source code is available: http://oofem.codeplex.com/
However, this CodePlex project appears to require the MtxVec math library from Dew Research which is not open source or free. (Note the 'uses MTxVec' in the source code).
Edit:
I accepted the answer: It's sofar the only advanced opensource Delphi I come accross.
To share my other findings, I suggest the following french resources (in academia):
Méthode des éléments finis: programmes écrits en Pascal (source code samples in Delphi).
RDM 6.17 (Binary distribution only).
I don't know of any that exist anymore since the heyday of Pascal being used for numerical methods work in the 80's. You best bet is to look into the C++ or FORTRAN projects listed at: http://en.wikipedia.org/wiki/List_of_numerical_libraries and either convert the code or link to the binaries. If you can use a commercial library, the NAG library has a write up on using Delphi with their DLLs at: http://www.nag.com/numeric/BorlandDelphi.asp.
You can also try here, scroll down to 'Free/Open Source/Shareware Packages' - lots listed, but language is not specifed.
just looking for some implementation of arbitrary large integer numbers with some basic arithmetic (add, mul, div at least) for Delphi.
All solutions I did already found are either painfully slow(FGInt, BigInt, MyBigInt, UBigInts), i386 CPU specific (sdpbigInt) or implemented in C (MPIR/GMP).
So far the best results got with Delphi GMP wrappers for MPIR, but I'd prefer pure Delphi/Asm library (MPIR requires C compiler installed and knowledge of C if would like to study algorithms or do some tweaks).
I've read positive comments about NX multiprecision library written by Marcel Martin, but unfortunately it's no more available to download from the official site at http://www.ellipsa.eu . As code was distributed as freeware including sources, I do not find a problem to get it from other site. Can anybody throw in some alternate download link, please ?
Thanks in an advance.
Since you didn't specifically ask for a free alternative: StreamSec Tools 4.0. It contains hand optimized assembler for both x86 and x64 and comes with source.
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I am curious about what tools are used to build the next version of themselves.
For example, Delphi has long claimed that "Delphi is written in Delphi".
I assume Visual Studio is written using Visual Studio.
What are some other examples of tools that written in themselves?
Interestingly, the VB.NET & C# compilers themselves are written in unmanaged C++ (leading to the C++ team's T-Shirt: "My compiler compiled yours"). The C# team hopes to have a fully managed-C# hosted C# compiler for VS2010.
Bjarne Stroustrup mentioned in The Design and Evolution of C++ that the first C++ compiler was written in C++.
I've just noticed this is also a question in his FAQ:
The first C++ compiler (Cfront) was
written in C++. To build that, I first
used C to write a "C with
Classes"-to-C preprocessor. "C with
Classes" was a C dialect that became
the immediate ancestor to C++. That
preprocessor translated "C with
Classes" constructs (such as classes
and constructors) into C. It was a
traditional preprocessor that didn't
understand all of the language, left
most of the type checking for the C
compiler to do, and translated
individual constructs without complete
knowledge. I then wrote the first
version of Cfront in "C with Classes".
This is off-topic, but strictly speaking, it is an example of a tool which builds itself.
The reprap - an open-source 3d prototyping machine, which recently gave 'birth' to "its first complete working replicated copy".
I love this kind of stuff.
Generically speaking, C compilers are usually written in C... *nix kernels are compiled on *nix, etc.
Also, there's the pypy project which provides a Python interpreter written in Python.
When gcc (the Gnu C compiler http://gcc.gnu.org/) was not available widely, you had to compile it from source, compiling stage1 compiler, then compile stage2 with stage1, till you have your final compiler. I assume it must be the same today.
Here is another example: Mono's C# compiler is self hosting - i.e. it's written in C# and used to compile itself.
Dog fooding refers to the more general practice of a company using its own product internally, especially during its development.
Lots of folks like to look at how Lisp can be implemented in Lisp.
Squeak is a Smalltalk-80 implementation written in itself.
even its virtual machine is written entirely in Smalltalk making it easy to debug, analyze, and change.
Sun's Java compiler has long been written in Java. However, recent work is writing a JIT compiler in Java as well. This is the JVM component that converts Java byte code to native processor instructions.
We use to develop using RealBasic. The IDE is written in itself, or so I've been lead to believe.
ghc, the Haskell compiler, is mostly written in Haskell.
tcc is another self-hosting C compiler for x86 and ARM. Its claim to fame is being, well, tiny (100k or so for preprocessor, compiler, assembler, and linker).
I would assume that pretty much any tool that's part of the typical development process would be involved in its own development, to whatever extent possible. This includes:
certain programming languages, especially compiled ones
IDEs
text editors
version control systems
bug trackers
build systems
If you're on a team building one of these tools, and you're not developing it for a specific niche that doesn't apply to your team, I don't know why you wouldn't use it to build itself. Having developers be users of the product is one of the best ways to find possible improvements.
For the AmigaOS there was a third party Basic interpreter (don't remember the name) for which you could later buy a compiler. The compiler was delivered as source, so you had to use the interpreter to run the compiler to compile itself...
To cite Kent Beck:
...it may seem a bit like performing brain surgery on yourself.
Visual Studio and Team Foundation Server build themselves. It's called dogfooding, a term which if not originating in Microsoft, it certainly likes
Oracle Application Express is a web application development tool that is built in itself.
Eclipse IDE is generally built and developed using Eclipse IDE.
It is fairly typical to have a languages compiler written in its own language. This is called self-hosting or bootstrapping.
Maven2 is built using Maven2.
Ok, it's not built (i.e. written) using itself, as it is a tool to build (i.e. compile) project, but it is using its own code to compile...
I was amazed with JSLint
In short it has been described as Javascript "compiler" using javascript.
I am building an IDE-based code generator, and I am using it to build itself. If fact, as Stroustrup did, I am first building a valid generator model and using a pre-processor to build the final C++ code to compile. Once I have a good working version of the IDE, I'll start using it to build further versions of itself.
It's like giving a new dimension to the meaning of "recursive programming"!
AFAIK does the OpenJDK build itself first with the installed java and afterwards with itself.
Naturally the Jetbrains team uses its own IDE IntelliJ IDEA to develop this IDE.
I assume this is true for most IDE vendors.
As far as I know, when building EMACS from source, all of the ELISP code is bootstrapped. I found that quite noteworthy.
Not quite what you're asking for, but the entire development environment for Revolution http://www.runrev.com is built using Revolution itself, and the source (except for small parts that enforce the license) is completely exposed in source form. So if you don't like the way the dev environment is implemented, you can change it. Find a bug, fix it. You can also easily build additional development tools and integrate them.
Ada and Forth
I gave the Smalltalk-80 answer an uptick. Best, most elegant example I can think of. The question also reminds me of a slightly related problem that used to be popular: write a program that outputs itself. Not the same level of bootstrapping, but a fun little programming puzzle for your amusement. Maybe not possible in all languages?
The old Watcom C/C++ compiler was built using itself.
Kragen Sitaker's Ur-Scheme is a fine example of a small nontrivial compiler written in itself. That page links to several more good sources in that vein.