C++ - IT++
Table of Contents
Introduction
IT++1 is a powerful C++ library, which is widely employed in the area of communication, esp. in simulation programming and computing. It has provided a variety of useful classes, e.g. vector, matrix. With the aid of IT++, programming in C++ is very similar to programming in MATLAB.
IT++ is released under GPL, and can work on all the platforms, including Unix/Linux, Windows an Mac OS X.
Installation
Optionally, its functionality can be greatly extended based on existing open-source or commercial libraries, i.e.
Install the third-party libraries
Herein, we take the open-source libraries above for instance. For ArchLinux, the installation can be performed by
pacman -S blas lapack fftw
Install IT++
The lastest version of IT++ can be obtained via git, and installed to /opt/itpp by following commands.
git clone --depth=1 git://git.code.sf.net/p/itpp/git itpp-git cd itpp-git mkdir build cd build cmake .. -DCMAKE_INSTALL_PREFIX=/opt/itpp make make install make clean cd .. rm -rf build
What deserves notice, the commands above installs the shared libraries. For the static version, option -DITPP_SHARED_LIB=off of cmake should be used.
BTW, HTML documentation will be installed by default. Therefore, doxygen needs to be installed in advance. Otherwise, the documentation installation should be disabled by -DHTML_DOCS=off option of cmake.
Usage
IT++ provides a script /opt/itpp/bin/itpp-config to simplify the compilation and linking of IT++ based programs.
Targetting better utilization, creating following soft links is necessary.
ln -s /opt/itpp/bin/itpp-config /usr/local/bin ln -s /opt/itpp/include/itpp /usr/local/include
Create file /etc/ld.so.conf.d/itpp.conf with its content as follows.
/opt/itpp/lib
Then, fresh the cache accordingly.
ldconfig
Interface
IT++ has its own file format, with a suffix .it. Fortunately, for the sake of convenient file exchange, it provides
- MATLAB functions
itload.manditsave.m. - Python module
pyitpp.py