Build fast computational graphs quickly using modern C++!

Flexcore is:

  • A modern C++ library for dataflow programming based on C++14.
  • Fast: FlexCore does not contain any hidden performance traps. The template based design does not hide the execution path behind unnecessary indirection and thus allows compilers to optimize the whole dataflow program. A set of benchmarks is delivered with the library to back up our claims.
  • Generic: FlexCore requires only minimal concepts from user defined types and algorithms.
  • Robust: FlexCore makes full use of the C++ type system to make it easy to write correct and hard to write incorrect code.
  • Well tested: FlexCore is in production use for 3D point cloud scanners. An extensive suite of unit-tests is provided as well.


See the getting started page.


Flexcore uses a cmake based build system. After cloning run:

$ git submodule init
$ git submodule update

To compile and install:

$ mkdir build && cd build
$ make install

The installation location can be customized in the usual cmake way:


On 32-bit platforms libraries will be placed in /lib32, and on 64-bit platforms in /lib64.

To override the library dir suffix specify the variable -DLIB_SUFFIX= in the call to cmake. The libraries will then be installed in


To use flexcore in a cmake based project check the usage document.

To access the documentation in doxygen, execute doxygen from top level directory, not from /docs :

doxygen docs/doxyfile


  • C++14 compatible compiler (tested with GCC-5.2, Clang-3.6)
  • Boost (>=1.54) - thread/log/system libraries

External libraries that are included as git submodules, are located under /src/3rdparty. Currently, flexcore includes the following libraries:

  • adobe stlab forest library - A generic C++ library for graph representation
  • cereal - A C++11 library for serialization


Copyright 2016 Caspar Kielwein

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at


Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
See the License for the specific language governing permissions and limitations under the License.
See LICENSE.txt or http://www.apache.org/licenses/LICENSE-2.0

All files under flexcore/3rdparty are licensed by their respective copyright owners.
adobe stlab forest is distributed under the Boost Software License, Version 1.0.
cereal is licensed under the BSD license.


Build fast computational graphs quickly using modern C++

Flexcore Info

⭐ Stars 45
🔗 Source Code github.com
🕒 Last Update 7 months ago
🕒 Created 6 years ago
🐞 Open Issues 3
➗ Star-Issue Ratio 15
😎 Author FlexCoreLib