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/*
 *  R : A Computer Language for Statistical Data Analysis
 *  Copyright (C) 2007  The R Core Team.
 *
 *  This header file is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU Lesser General Public License as published by
 *  the Free Software Foundation; either version 2.1 of the License, or
 *  (at your option) any later version.
 *
 *  This file is part of R. R is distributed under the terms of the
 *  GNU General Public License, either Version 2, June 1991 or Version 3,
 *  June 2007. See doc/COPYRIGHTS for details of the copyright status of R.
 *
 *  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 Lesser General Public License for more details.
 *
 *  You should have received a copy of the GNU Lesser General Public License
 *  along with this program; if not, a copy is available at
 *  https://www.R-project.org/Licenses/
 */

#ifndef R_STATS_PACKAGE_H
#define R_STATS_PACKAGE_H
#include <Rconfig.h>

#ifdef HAVE_VISIBILITY_ATTRIBUTE
# define attribute_hidden __attribute__ ((visibility ("hidden")))
#else
# define attribute_hidden
#endif

enum AlgType {NREG = 1, OPT = 2};
                /* 0-based indices into v */
enum  VPos {F = 9, F0 = 12, FDIF = 10, G = 27, HC = 70};
                /* 0-based indices into iv */
enum IVPos {AI = 90, AM = 94, ALGSAV = 50, COVMAT = 25,
        COVPRT = 13, COVREQ = 14, DRADPR = 100,
        DTYPE = 15, IERR = 74, INITH = 24, INITS = 24,
        IPIVOT = 75, IVNEED =  2, LASTIV = 42, LASTV = 44,
        LMAT =  41, MXFCAL = 16, MXITER = 17, NEXTV  = 46,
        NFCALL =  5, NFCOV = 51, NFGCAL = 6, NGCOV = 52,
        NITER = 30, NVDFLT = 49, NVSAVE = 8, OUTLEV = 18,
        PARPRT = 19, PARSAV = 48, PERM = 57, PRUNIT = 20,
        QRTYP = 79, RDREQ = 56, RMAT = 77, SOLPRT = 21,
        STATPR = 22, TOOBIG = 1, VNEED = 3, VSAVE = 59,
        X0PRT = 23};

void attribute_hidden
S_Rf_divset(int alg, int iv[], int liv, int lv, double v[]);

void attribute_hidden
S_nlsb_iterate(double b[], double d[], double dr[], int iv[],
           int liv, int lv, int n, int nd, int p,
           double r[], double rd[], double v[], double x[]);

void attribute_hidden
S_nlminb_iterate(double b[], double d[], double fx, double g[],
         double h[], int iv[], int liv, int lv, int n,
         double v[], double x[]);

void attribute_hidden
S_rcont2(int nrow[], int ncol[], int nrowt[], int ncolt[], 
         int ntotal[], double fact[], int jwork[], int matrix[]);

static R_INLINE int S_v_length(int alg, int n)
{
    return (alg - 1) ? (105 + (n * (2 * n + 20))) :
    (130 + (n * (n + 27))/2);
}

static R_INLINE int S_iv_length(int alg, int n)
{
    return (alg - 1) ? (82 + 4 * n) : (78 + 3 * n);
}

#endif /* R_STATS_PACKAGE_H */