/*  -- translated by f2c (version 20240504).
   You must link the resulting object file with libf2c:
	on Microsoft Windows system, link with libf2c.lib;
	on Linux or Unix systems, link with .../path/to/libf2c.a -lm
	or, if you install libf2c.a in a standard place, with -lf2c -lm
	-- in that order, at the end of the command line, as in
		cc *.o -lf2c -lm
	Source for libf2c is in /netlib/f2c/libf2c.zip, e.g.,

		http://www.netlib.org/f2c/libf2c.zip
*/

#include "f2c.h"

/* > \brief \b DLACPY copies all or part of one two-dimensional array to another.   

    =========== DOCUMENTATION ===========   

   Online html documentation available at   
              http://www.netlib.org/lapack/explore-html/   

   > \htmlonly   
   > Download DLACPY + dependencies   
   > <a href="http://www.netlib.org/cgi-bin/netlibfiles.tgz?format=tgz&filename=/lapack/lapack_routine/dlacpy.
f">   
   > [TGZ]</a>   
   > <a href="http://www.netlib.org/cgi-bin/netlibfiles.zip?format=zip&filename=/lapack/lapack_routine/dlacpy.
f">   
   > [ZIP]</a>   
   > <a href="http://www.netlib.org/cgi-bin/netlibfiles.txt?format=txt&filename=/lapack/lapack_routine/dlacpy.
f">   
   > [TXT]</a>   
   > \endhtmlonly   

    Definition:   
    ===========   

         SUBROUTINE DLACPY( UPLO, M, N, A, LDA, B, LDB )   

         CHARACTER          UPLO   
         INTEGER            LDA, LDB, M, N   
         DOUBLE PRECISION   A( LDA, * ), B( LDB, * )   


   > \par Purpose:   
    =============   
   >   
   > \verbatim   
   >   
   > DLACPY copies all or part of a two-dimensional matrix A to another   
   > matrix B.   
   > \endverbatim   

    Arguments:   
    ==========   

   > \param[in] UPLO   
   > \verbatim   
   >          UPLO is CHARACTER*1   
   >          Specifies the part of the matrix A to be copied to B.   
   >          = 'U':      Upper triangular part   
   >          = 'L':      Lower triangular part   
   >          Otherwise:  All of the matrix A   
   > \endverbatim   
   >   
   > \param[in] M   
   > \verbatim   
   >          M is INTEGER   
   >          The number of rows of the matrix A.  M >= 0.   
   > \endverbatim   
   >   
   > \param[in] N   
   > \verbatim   
   >          N is INTEGER   
   >          The number of columns of the matrix A.  N >= 0.   
   > \endverbatim   
   >   
   > \param[in] A   
   > \verbatim   
   >          A is DOUBLE PRECISION array, dimension (LDA,N)   
   >          The m by n matrix A.  If UPLO = 'U', only the upper triangle   
   >          or trapezoid is accessed; if UPLO = 'L', only the lower   
   >          triangle or trapezoid is accessed.   
   > \endverbatim   
   >   
   > \param[in] LDA   
   > \verbatim   
   >          LDA is INTEGER   
   >          The leading dimension of the array A.  LDA >= max(1,M).   
   > \endverbatim   
   >   
   > \param[out] B   
   > \verbatim   
   >          B is DOUBLE PRECISION array, dimension (LDB,N)   
   >          On exit, B = A in the locations specified by UPLO.   
   > \endverbatim   
   >   
   > \param[in] LDB   
   > \verbatim   
   >          LDB is INTEGER   
   >          The leading dimension of the array B.  LDB >= max(1,M).   
   > \endverbatim   

    Authors:   
    ========   

   > \author Univ. of Tennessee   
   > \author Univ. of California Berkeley   
   > \author Univ. of Colorado Denver   
   > \author NAG Ltd.   

   > \date September 2012   

   > \ingroup auxOTHERauxiliary   

    =====================================================================   
   Subroutine */ int igraphdlacpy_(char *uplo, integer *m, integer *n, doublereal *
	a, integer *lda, doublereal *b, integer *ldb)
{
    /* System generated locals */
    integer a_dim1, a_offset, b_dim1, b_offset, i__1, i__2;

    /* Local variables */
    integer i__, j;
    extern logical igraphlsame_(char *, char *);


/*  -- LAPACK auxiliary routine (version 3.4.2) --   
    -- LAPACK is a software package provided by Univ. of Tennessee,    --   
    -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..--   
       September 2012   


    =====================================================================   


       Parameter adjustments */
    a_dim1 = *lda;
    a_offset = 1 + a_dim1;
    a -= a_offset;
    b_dim1 = *ldb;
    b_offset = 1 + b_dim1;
    b -= b_offset;

    /* Function Body */
    if (igraphlsame_(uplo, "U")) {
	i__1 = *n;
	for (j = 1; j <= i__1; ++j) {
	    i__2 = min(j,*m);
	    for (i__ = 1; i__ <= i__2; ++i__) {
		b[i__ + j * b_dim1] = a[i__ + j * a_dim1];
/* L10: */
	    }
/* L20: */
	}
    } else if (igraphlsame_(uplo, "L")) {
	i__1 = *n;
	for (j = 1; j <= i__1; ++j) {
	    i__2 = *m;
	    for (i__ = j; i__ <= i__2; ++i__) {
		b[i__ + j * b_dim1] = a[i__ + j * a_dim1];
/* L30: */
	    }
/* L40: */
	}
    } else {
	i__1 = *n;
	for (j = 1; j <= i__1; ++j) {
	    i__2 = *m;
	    for (i__ = 1; i__ <= i__2; ++i__) {
		b[i__ + j * b_dim1] = a[i__ + j * a_dim1];
/* L50: */
	    }
/* L60: */
	}
    }
    return 0;

/*     End of DLACPY */

} /* igraphdlacpy_ */

