C++ Delegate Library Collection

This is a collection of C++ delegate libraries that I've discovered and collected so far.

Library

Here's the current list of delegate libraries in this repo (2014/06):

• FastFunc:
  A C++11 re-implementation of Don Clugston's original FastDelegate by Paúl Jiménez(Ceniza)(CodeProject link) (Gist). Signature: ssvu::FastFunc

• FastDelegate:
  A C++11 variadic template version of Don Clugston's original FastDelegate (Source link) (Original Implementation CodeProject link). Signature: fastdelegate::FastDelegate

• SRDelegate:
  A C++11 re-implementation of Sergey Ryazanov's "The Impossibly Fast C++ Delegates"(CodeProject link).
  Signature: generic::delegate

Modification

These libraries also contain my own personal modifications which include:

• bugfixes
• new features
• VC workarounds (e.g. C++11 non-conformance workarounds).

Test

Boost unit test is also available under the unit_test directory. Both a VS2015 and a Qt project(outdated) are provided. You will have to modify the Boost library paths to your own before you build the tests. VS solution is setted up to run the test post-build.

Known Issues

None AFAIK.

Benchmark

A benchmark is available to do performance comparison of function call performance for the libraries. It measures the function call performance. The benchmark also contains the original FastDelegate written by Don Clugston.

Feel free to send in pull request and contribute.

Test Cases

Function types tested at the moment are below:

• static global function (with and without parameter)
• static member function (with and without parameter)
• non-virtual member function (with and without parameter)

Build

A Qt project file is provided. It has been tested on a Win7 laptop and a Win8 desktop.

A Visual Studio 2015 solution is also provided. This is tested on a Win10 desktop.

Due to the fact that VC++ is still C++11 non-conformance, quite a bit of workaround had to be added to make the C++11 versions of the delegate libraries to work. What I've done is providing 2 copies of each of the affected libraries separated by #ifdef's within their respective header files. If the '_MSC_VER' is detected then the visual studio version containing the workarounds would be used.

In Visual Studio, COMDAT Folding needs to be disabled in the linker ('/OPT:ICF' -> '/OPT:NOICF') in order for the libraries to work correctly. In this example, COMDAT Folding simply make the comparison operators work incorrectly.

License

Each library should be retained within the original license that they were distributed in. I do not claim credit for each library's original implementation, except for my own modification.

If you are the oringnal author of any of the libraries and you wish to change the license or remove the library from this repository. Please drop me a message or raise an issue in the tracker.