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/* Ergo, version 3.5, a program for linear scaling electronic structure
* calculations.
* Copyright (C) 2016 Elias Rudberg, Emanuel H. Rubensson, Pawel Salek,
* and Anastasia Kruchinina.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* Primary academic reference:
* KohnâSham Density Functional Theory Electronic Structure Calculations
* with Linearly Scaling Computational Time and Memory Usage,
* Elias Rudberg, Emanuel H. Rubensson, and Pawel Salek,
* J. Chem. Theory Comput. 7, 340 (2011),
* <http://dx.doi.org/10.1021/ct100611z>
*
* For further information about Ergo, see <http://www.ergoscf.org>.
*/
/* The Failure class is used for exception handling. *
* It inherits std::exception which means that an instance of this *
* class can be caught by catching std::exception& *
* The "&" must be there, otherwise the failure message *
* will be "cut out". *
* Retrieve the message with a call to the member function "what()" *
* *
* *
* \\\|||/// \ (C) Emanuel Rubensson, August, 2005 *
* \ ~ ~ / \ *
* | @ @ | \ mail: emanuel@theochem.kth.se *
* oOo---(_)---oOo---\----------------------------------------------*
* */
#ifndef FAILURE
#define FAILURE
#include <exception>
namespace mat
{
class Failure : public std::exception {
const char* message;
public:
Failure()
:message("Failure: No failure information available")
{}
explicit Failure (const char* msg)
:message(msg)
{}
virtual ~Failure() throw() {}
virtual const char* what() const throw()
{return message;}
};
class Acceptable : public Failure {
public:
Acceptable()
:Failure("Acceptable: No acceptable failure information available")
{}
explicit Acceptable (const char* msg)
:Failure(msg)
{}
};
class AcceptableMaxIter : public Acceptable {
int maxiter;
public:
AcceptableMaxIter()
:Acceptable("AcceptableMaxIter: No acceptable failure information available"),
maxiter(0)
{}
explicit AcceptableMaxIter (const char* msg, int maxi = 0)
:Acceptable(msg), maxiter(maxi)
{}
int get_maxiter() const {
return maxiter;
}
};
} /* end namespace */
#endif
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