dbg.h

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#ifndef MeasAlgoShapeletDbg_H
#define MeasAlgoShapeletDbg_H

#if 0 // for now, turn this off for LSST.  

/* Put the following in the main program file:

   std::ostream* dbgout=0;
   bool XDEBUG=false;

*/

//
// Set up debugging stuff
//

#include <iostream>
#include <stdexcept>

#if defined(__GNUC__) && defined(OPENMP_LINK)
extern __thread std::ostream* dbgout;
extern __thread bool XDEBUG;
#else
extern std::ostream* dbgout;
extern bool XDEBUG;
#endif

#ifdef _OPENMP
#pragma omp threadprivate( dbgout , XDEBUG )
#endif

struct AssertFailureException :
    public std::runtime_error
{
    AssertFailureException(const char* e) : std::runtime_error(
        std::string("Error - Assert ") + e + " failed") {}
};

#ifdef NDEBUG
#define dbg if (false) (*dbgout)
#define xdbg if (false) (*dbgout)
#define xxdbg if (false) (*dbgout)
#define Assert(x)
#else
#define dbg if (dbgout) (*dbgout)
#define xdbg if (dbgout && XDEBUG) (*dbgout)
#define xxdbg if (false) (*dbgout)
#define Assert(x) \
    do { \
        if(!(x)) { \
            dbg << "Error - Assert " #x " failed"<<std::endl; \
            dbg << "on line "<<__LINE__<<" in file "<<__FILE__<<std::endl; \
            throw AssertFailureException(#x); \
        } \
    } while(false)
#endif

#else // Define simple replacements so dbg code can remain without problems.

#include "assert.h"
#include <ostream>

const bool XDEBUG = false;
std::ostream*const dbgout = 0;
#ifdef USE_CERR_FOR_DBG
#define dbg if (true) (std::cerr)
#define xdbg if (true) (std::cerr)
#else
#define dbg if (false) (std::cerr)
#define xdbg if (false) (std::cerr)
#endif
#define xxdbg if (false) (std::cerr)
#define Assert(x) assert(x)

#endif

#endif