source: trunk/README @ 26

// $Id: README 26 2006-01-05 01:36:42Z jari $

Acknowledgements

svnstat uses a C++ interface to Gnuplot written by Rajarshi Guha. The
interface is integrated in the svnstat code with some modifications
(see below). The original code used for svnstat can be found in
directory ./gnuplot_i++.

Rajarshi Guha's "A C++ Interface to Gnuplot" can be found through
http://jijo.cjb.net/ . The C++ interface is based on "gnuplot
interfaces in ANSI C" written by Nicolas Devillard. The C implemention
is available through http://ndevilla.free.fr/ .

Changes made to the C++ Gnuplot interface files (gnuplot_i.hpp and
gnuplot_i.cc):

i) Changed filename gnuplot_i.hpp to gnuplot_i.h, and consequently
   changed #include directive in gnuplot_i.cc.

ii) Encapsulated the interface into namespace theplu::svnstat.

iii) Added $Id: README 26 2006-01-05 01:36:42Z jari $ tags in both files.

iv) Changed the initial #ifndef/#define idiom to avoid potential
   clash with the original implementation.

v) gnuplot_i.h: Removed the 'using namespace std;' statement, since we
   don't want to expose the std namespace to everyone using the
   Gnuplot interface. This triggered subsequent changes to code lines
   with string and vector<> usage.

vi) Resolved signed/unsigned compiler warnings in gnuplot_i.cc on
   lines 235, 278, 418, and 482

vii) gnuplot_i.cc: Changed order of code in Gnuplot destructor, now
   the pipe is closed first. I have not done a full scale
   investigation on why this is needed, but on MacOSX the files are
   removed before gnuplot plots data when the original code order is
   kept.