文件列表:

LICENSE.md (1536, 2021-04-16)
Makefile (4200, 2021-04-16)
TODO.md (235, 2021-04-16)
benchmarks (0, 2021-04-16)
benchmarks\Dict (0, 2021-04-16)
benchmarks\Dict\dict_c.c (1093, 2021-04-16)
benchmarks\Dict\dict_cello.c (490, 2021-04-16)
benchmarks\Dict\dict_cpp.cpp (1591, 2021-04-16)
benchmarks\Dict\dict_cs.cs (395, 2021-04-16)
benchmarks\Dict\dict_d.d (655, 2021-04-16)
benchmarks\Dict\dict_go.go (338, 2021-04-16)
benchmarks\Dict\dict_java.java (546, 2021-04-16)
benchmarks\Dict\dict_javascript.js (354, 2021-04-16)
benchmarks\Dict\dict_lua.lua (166, 2021-04-16)
benchmarks\Dict\dict_perl.pl (118, 2021-04-16)
benchmarks\Dict\dict_python.py (235, 2021-04-16)
benchmarks\Dict\dict_ruby.rb (140, 2021-04-16)
benchmarks\GC (0, 2021-04-16)
benchmarks\GC\gc_c.c (1360, 2021-04-16)
benchmarks\GC\gc_cello.c (1266, 2021-04-16)
benchmarks\GC\gc_cpp.cpp (1451, 2021-04-16)
benchmarks\GC\gc_java.java (1311, 2021-04-16)
benchmarks\GC\gc_javascript.js (822, 2021-04-16)
benchmarks\GC\gc_lua.lua (860, 2021-04-16)
benchmarks\GC\gc_python.py (617, 2021-04-16)
benchmarks\GC\gc_ruby.rb (690, 2021-04-16)
benchmarks\List (0, 2021-04-16)
benchmarks\List\list_c.c (628, 2021-04-16)
benchmarks\List\list_cello.c (354, 2021-04-16)
benchmarks\List\list_cpp.cpp (384, 2021-04-16)
benchmarks\List\list_java.java (493, 2021-04-16)
benchmarks\List\list_javascript.js (327, 2021-04-16)
benchmarks\List\list_lua.lua (241, 2021-04-16)
benchmarks\List\list_python.py (279, 2021-04-16)
benchmarks\List\list_ruby.rb (131, 2021-04-16)
benchmarks\Map (0, 2021-04-16)
... ...

Cello ===== __Cello__ is a _library_ that brings higher level programming to C. By acting as a _modern_, _powerful_ runtime system Cello makes many things easy that were previously impractical or awkward in C such as: * __Generic Data Structures__ * __Polymorphic Functions__ * __Interfaces / Type Classes__ * __Constructors / Destructors__ * __Optional Garbage Collection__ * __Exceptions__ * __Reflection__ And because Cello works seamlessly alongside standard C you get all the other benefits such as great performance, powerful tooling, and extensive libraries. Examples -------- ```c #include "Cello.h" int main(int argc, char** argv) { /* Stack objects are created using "$" */ var i0 = $(Int, 5); var i1 = $(Int, 3); var i2 = $(Int, 4); /* Heap objects are created using "new" */ var items = new(Array, Int, i0, i1, i2); /* Collections can be looped over */ foreach (item in items) { print("Object %$ is of type %$\n", item, type_of(item)); } /* Heap objects destructed via Garbage Collection */ return 0; } ``` ```c #include "Cello.h" int main(int argc, char** argv) { /* Shorthand $ can be used for basic types */ var prices = new(Table, String, Int); set(prices, $S("Apple"), $I(12)); set(prices, $S("Banana"), $I( 6)); set(prices, $S("Pear"), $I(55)); /* Tables also support iteration */ foreach (key in prices) { var val = get(prices, key); print("Price of %$ is %$\n", key, val); } return 0; } ``` Articles -------- Learning Resources: * [Installation](http://libcello.org/learn/installation) * [Cello World](http://libcello.org/learn/cello-world) * [Quickstart](http://libcello.org/learn/quickstart) * [Common Queries / Pitfalls](http://libcello.org/learn/queries-and-pitfalls) Articles about its creation and internal workings: * [Best Improvements of Cello 2.0](http://libcello.org/learn/best-improvements-of-cello-2.0) * [A Fat Pointer Library](http://libcello.org/learn/a-fat-pointer-library) * [Cello vs C++ vs ObjC](http://libcello.org/learn/cello-vs-cpp-vs-objc) * [Benchmarks](http://libcello.org/learn/benchmarks) * [Garbage Collection](http://libcello.org/learn/garbage-collection) More Examples ------------- ```c #include "Cello.h" int main(int argc, char** argv) { var items = new(Array, Int, $I( 8), $I( 5), $I(20), $I(15), $I(16), $I(***)); /* Iterate over indices using "range" */ foreach (i in range($I(len(items)))) { print("Item Range %i is %i\n", i, get(items, i)); } /* Iterate over every other item with "slice" */ foreach (item in slice(items, _, _, $I(2))) { print("Item Slice %i\n", item); } return 0; } ``` ```c #include "Cello.h" /* Define a normal C structure */ struct Point { float x, y; }; /* Make it compatible with Cello */ var Point = Cello(Point); int main(int argc, char** argv) { /* Create on Stack or Heap */ var p0 = $(Point, 0.0, 1.0); var p1 = new(Point, $(Point, 0.0, 2.0)); /* It can be shown, compared, hashed, etc... ** ** p0: <'Point' At 0x000000000022FC58> ** p1: <'Point' At 0x00000000004C7CC8> ** cmp: 1 ** hash: 2849275892l */ print("p0: %$\np1: %$\ncmp: %i\nhash: %ul\n", p0, p1, $I(cmp(p0, p1)), $I(hash(p0))); /* And collected by the GC when out of scope */ return 0; } ``` F.A.Q ----- * __Why does this exist?__ I made Cello as a fun experiment to see what C looks like hacked to its limits. As well as being a powerful library and toolkit, it should be interesting to those who want to explore what is possible in C. * __How does it work?__ I recommend reading [A Fat Pointer Library](http://libcello.org/learn/a-fat-pointer-library) to get an overview of how Cello works. You can also peek at the source code, which I'm told is fairly readable, or ask me any questions you like via e-mail. * __Can it be used in Production?__ It might be better to try Cello out on a hobby project first. Cello does aim to be _production ready_, but because it is a hack it has its fair share of oddities and pitfalls, and if you are working in a team, or to a deadline, there is much better tooling, support and community for languages such as C++. * __Is anyone using Cello?__ People have experimented with it, but there is no high profile project I know of that uses it. Cello is too big and scary a dependency for new C projects if they want to be portable and easy to maintain. * __Can I get involved?__ Yes! That would be great. If you do anything with Cello I'd love to know, you can e-mail me at `contact@theorangeduck.com`, or help with the development at the [Cello github repo](https://github.com/orangeduck/libCello). Contributions are very welcome. * __Who are you?__ Hello! I'm Daniel Holden. You many know me from a [book I wrote](http://www.buildyourownlisp.com/) or my [personal website](http://theorangeduck.com/). I also have a rarely updated [twitter account](https://twitter.com/anorangeduck).

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