ATC_Error.h
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	// ATC_Error : a base class for atom-continuum errors

	#ifndef ATC_ERROR
	#define ATC_ERROR

	#include <string>

	// the following two convert __LINE__ to a string
	#define STRING2(x) #x
	#define STRING(x) STRING2(x)
	// prints file and line number for error messages
	#define ERROR(x) __FILE__ ":" STRING(__LINE__) " " x
	//#define FILELINE __FILE__+to_string(__LINE__)
	#define FILELINE __FILE__

	#define ERROR_FOR_BACKTRACE
	#define HACK(l,m)


	namespace ATC {
	/**
	* @class ATC_Error
	* @brief Base class for throwing run-time errors with descriptions
	*/

	class ATC_Error {

	public:
	// constructor
	ATC_Error(std::string errorDescription)
	{
	errorDescription_ = "ERROR: " + errorDescription;
	ERROR_FOR_BACKTRACE
	};

	ATC_Error(std::string location, std::string errorDescription)
	{
	errorDescription_ = "ERROR: " + location + ": "+ errorDescription;
	ERROR_FOR_BACKTRACE
	};

	std::string error_description() {
	return errorDescription_;
	};

	private:
	// string describing the type of error
	std::string errorDescription_;
	};

	}
	#endif