[efa19d]: src / foreign / levmar / lmbc.c  Maximize  Restore  History

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/////////////////////////////////////////////////////////////////////////////////
//
// Levenberg - Marquardt non-linear minimization algorithm
// Copyright (C) 2004-05 Manolis Lourakis (lourakis@ics.forth.gr)
// Institute of Computer Science, Foundation for Research & Technology - Hellas
// Heraklion, Crete, Greece.
//
// 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 2 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.
//
/////////////////////////////////////////////////////////////////////////////////
/********************************************************************************
* Box-constrained Levenberg-Marquardt nonlinear minimization. The same core code
* is used with appropriate #defines to derive single and double precision versions,
* see also lmbc_core.c
********************************************************************************/
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include <float.h>
#include "lm.h"
#include "misc.h"
#define EPSILON 1E-12
#define ONE_THIRD 0.3333333334 /* 1.0/3.0 */
/* single precision (float) definitions */
#define LM_REAL float
#define LM_PREFIX s
#define LM_REAL_MAX FLT_MAX
#define LM_REAL_MIN FLT_MIN
#define LM_REAL_EPSILON FLT_EPSILON
#define SUBCNST(x) x##F
#define CNST(x) SUBCNST(x) // force substitution
#include "lmbc_core.c" // read in core code
#undef LM_REAL
#undef LM_PREFIX
#undef LM_REAL_MAX
#undef LM_REAL_EPSILON
#undef LM_REAL_MIN
#undef SUBCNST
#undef CNST
/* double precision definitions */
#define LM_REAL double
#define LM_PREFIX d
#define LM_REAL_MAX DBL_MAX
#define LM_REAL_MIN DBL_MIN
#define LM_REAL_EPSILON DBL_EPSILON
#define CNST(x) (x)
#include "lmbc_core.c" // read in core code
#undef LM_REAL
#undef LM_PREFIX
#undef LM_REAL_MAX
#undef LM_REAL_EPSILON
#undef LM_REAL_MIN
#undef CNST

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