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#ifndef MATRIX_MUTILS_H
#define MATRIX_MUTILS_H

#include <Rdefines.h>

char norm_type(char *typstr);
char rcond_type(char *typstr);
double get_double_by_name(SEXP obj, char *nm);
SEXP set_double_by_name(SEXP obj, double val, char *nm);
SEXP as_det_obj(double val, int log, int sign);
SEXP get_factorization(SEXP obj, char *nm);
SEXP set_factorization(SEXP obj, SEXP val, char *nm);
SEXP cscMatrix_set_Dim(SEXP x, int nrow);
int csc_unsorted_columns(int ncol, const int p[], const int i[]);
void csc_sort_columns(int ncol, const int p[], int i[], double x[]);
SEXP triple_as_SEXP(int nrow, int ncol, int nz,
            const int Ti [], const int Tj [], const double Tx [],
            char *Rclass);
SEXP csc_check_column_sorting(SEXP A);
void csc_components_transpose(int m, int n, int nnz,
                  const int xp[], const int xi[],
                  const double xx[],
                  int ap[], int ai[], double ax[]);
void triplet_to_col(int nrow, int ncol, int nz,
            const int Ti [], const int Tj [], const double Tx [],
            int Ap [], int Ai [], double Ax []);
void ssc_symbolic_permute(int n, int upper, const int perm[],
              int Ap[], int Ai[]);
double *nlme_symmetrize(double *a, const int nc);
void nlme_check_Lapack_error(int info, const char *laName);
double *
LMEgradient(const double* factor, const double* A, const int nlev,
        const int nc, const double* pdgradient, const int plen,
        double* value);

                /* stored pointers to symbols */
                /* initialized in Matrix_init */
extern SEXP
    Matrix_DSym,
    Matrix_DIsqrtSym,
    Matrix_DimSym,
    Matrix_GpSym,
    Matrix_LIiSym,
    Matrix_LIpSym,
    Matrix_LIxSym,
    Matrix_LiSym,
    Matrix_LpSym,
    Matrix_LxSym,
    Matrix_OmegaSym,
    Matrix_ParentSym,
    Matrix_RXXSym,
    Matrix_RZXSym,
    Matrix_XtXSym,
    Matrix_ZtXSym,
    Matrix_bVarSym,
    Matrix_devianceSym,
    Matrix_devCompSym,
    Matrix_diagSym,
    Matrix_iSym,
    Matrix_ipermSym,
    Matrix_jSym,
    Matrix_matSym,
    Matrix_ncSym,
    Matrix_pSym,
    Matrix_permSym,
    Matrix_statusSym,
    Matrix_uploSym,
    Matrix_xSym,
    Matrix_zSym;

#endif