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QhullQh.cpp
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Sat, Nov 9, 15:18

QhullQh.cpp
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/****************************************************************************
**
** Copyright (c) 2008-2015 C.B. Barber. All rights reserved.
** $Id: //main/2011/qhull/src/libqhullpcpp/QhullQh.cpp#2 $$Change: 1810 $
** $DateTime: 2015/01/17 18:28:15 $$Author: bbarber $
**
****************************************************************************/
#//! QhullQh -- Qhull's global data structure, qhT, as a C++ class
#include "QhullError.h"
#include "QhullQh.h"
#include "QhullStat.h"
#include <sstream>
#include <iostream>
using std::cerr;
using std::string;
using std::vector;
using std::ostream;
#ifdef _MSC_VER // Microsoft Visual C++ -- warning level 4
#pragma warning( disable : 4611) // interaction between '_setjmp' and C++ object destruction is non-portable
#pragma warning( disable : 4996) // function was declared deprecated(strcpy, localtime, etc.)
#endif
namespace orgQhull {
#//Global variables
#//Constructor, destructor, etc.
//! If qh_QHpointer==0, invoke with placement new on qh_qh;
//! Sets qh_qh and qh_qhstat. Need to reset before UsingLibQhull.
//! Derived from qh_new_qhull[user.c]
QhullQh::
QhullQh()
{
static boolT firstcall = True;
if(firstcall){
if(qhmem.BUFinit!=0){
throw QhullError(10017, "Qhull error: qhmem already initialized by another class.");
}
qh_meminit(NULL);
firstcall= False;
}
// QhullQh() and UsingLibQhull() are the same
#if qh_QHpointer
if(qh_qh){
if(qh old_qhstat){
throw QhullError(10041, "Qhull internal error: qh_qh.old_qhstat defined (%x) but qh_qh is active. qh_qh not restored correctly.", 0, 0, 0.0, qh old_qhstat);
}
qh old_qhstat= qh_qhstat;
qh old_tempstack= qhmem.tempstack;
qh_qhstat= 0;
qhmem.tempstack= 0;
}
qh_qh= static_cast<qhT*>(this);
#else
if(strncmp(qh qhull, "qhull", 5) == 0){
throw QhullError(10022, "Qhull error: Qhull already initialized as run %d", qh run_id);
}
#endif
// NOerrors -- Does not call qh_errexit()
qh_initstatistics();
// NOerrors -- Does not call qh_errexit()
qh_initqhull_start2(NULL, NULL, qh_FILEstderr);
}//QhullQh
//! UsingLibQhull must be declared along with QhullQh
QhullQh::
~QhullQh()
{
#if qh_QHpointer
if(!qh_qh){
QhullError e(10042, "Qhull internal error: qh_qh undefined. Was ~QhullQh() invoked independent of UsingLibQhull?", qh run_id, 0, 0, qh_qh);
e.logError();
}else if(!qh_qhstat){
QhullError e(10043, "Qhull internal error: qh_qhstat null. Is another thread running?");
e.logError();
}else if(qh_qh!=this){
QhullError e(10044, "Qhull error: ~QhullQh() invoked independent of UsingLibQhull. qh_qh %x (runId %d) vs. QhullQh.runId %d.", qh run_id, run_id, 0.0, qh_qh);
e.logError();
}else{
qh_freeqhull2(qh_ALL); // sets qh.NOerrexit. Clears struct *qh_qh including run_id, but not qh_qh itself
}
#else
if(&qh_qh!=this){
QhullError e(10045, "Qhull error: ~QhullQh() invoked independent of UsingLibQhull. qh_qh %x (runId %d) vs. QhullQh.runId %d.", qh run_id, run_id, 0.0, qh_qh);
e.logError();
}else{
qh_freeqhull2(qh_ALL); // sets qh.NOerrexit. Clears struct *qh_qh including run_id, but not qh_qh itself
}
#endif
}//~QhullQh
#//Parallel Access
}//namespace orgQhull

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