wz.cxx

Delaunay三角形的网格剖分程序

//#define wzPrintError

//#include <iostream.h>
#include <signal.h>
#include <stdlib.h>
#include <math.h>
#include "wz.hxx"
#include "wzsafepointer.hxx"
#include "wzoutput.hxx"

#ifdef wzDebug
static int maxcount=3;
#else
static int maxcount=0;
#endif

extern const wzFloat	wzPi = 4*atan((double)1.0);
static int count=1;

void wzDebugger()
{
  if(++count>maxcount)
    throw wzError("errors","InternalError");
}

void wzMessage(wzString s)
{
  wzOutput::Default.operator()("<>\n")<<s;
}

wzError::wzError(wzString m,wzString e)
:module(m),entry(e) 
{
#ifdef wzPrintError
  print();
#else
  ;
#endif
}

void wzError::print()
{
  wzOutput::Error<<"\nError: \"<>\"\n",entry;
  wzPrintDocumentationEntry(wzOutput::Error,module,entry);
}

wzString wzgethome()
{wzString s=getenv("COG_HOME"); if(s) return s; else return "\"$COG_HOME\"";}

const wzString wzHomePath = wzgethome();

static void wzHandleFPE(int)
{
  throw wzMathError();
}

void	wzInitializeExceptionHandling()
{
  struct sigaction sa;
  int ret;
  sa.sa_handler = wzHandleFPE;
  sigemptyset(&sa.sa_mask);
  ret = sigaction(SIGFPE, &sa, 0);
}

// errors 

wzProxyHangingError::wzProxyHangingError()
  :wzError("mainwzproxytest","SafePointerHangingError")
{;}

wzProxyLockError::wzProxyLockError()
  :wzError("mainwzproxytest","SafePointerLockError")
{;}

wzDetectionError::wzDetectionError():wzError("errors","DetectionError"){;}

wzFileOpenError::wzFileOpenError():wzError("errors","FileOpenError"){;}

wzFileReadError::wzFileReadError():wzError("errors","FileReadError"){;}

wzFileWriteError::wzFileWriteError():wzError("errors","FileWriteError"){;}

wzAssertionError::wzAssertionError():wzError("errors","AssertionError"){;}        

wzNotEnoughMemory::wzNotEnoughMemory():wzFailure("not enough memory"){;}

wzAssertionFailure::wzAssertionFailure(wzString d)
  :wzFailure(d){;}

wzInternalFailure::wzInternalFailure(wzString d)
  :wzFailure(d){;}

wzDetectionFailure::wzDetectionFailure(wzString d)
  :wzFailure(d){;}

wzFailure::wzFailure(wzString d):description(d){wzDebugger();}