Continuation and rework of the C/C++ parser for the CSP XML format version 3.0
(c) 2015 xcsp.org (contact xcsp.org)
(c) 2008 olivier.roussel at cril.univ-artois.fr
Original found at https://github.com/xcsp3team/XCSP3-CPP-Parser
Changelog:
- "fixed" memory leak issues
- fixed some compiler warnings