Abdelrahman Said
183 lines
4.9 KiB
C
183 lines
4.9 KiB
C
/* -- translated by f2c (version 20240504).
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You must link the resulting object file with libf2c:
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on Microsoft Windows system, link with libf2c.lib;
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on Linux or Unix systems, link with .../path/to/libf2c.a -lm
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or, if you install libf2c.a in a standard place, with -lf2c -lm
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-- in that order, at the end of the command line, as in
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cc *.o -lf2c -lm
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Source for libf2c is in /netlib/f2c/libf2c.zip, e.g.,
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http://www.netlib.org/f2c/libf2c.zip
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*/
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#include "f2c.h"
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/* > \brief \b DLACPY copies all or part of one two-dimensional array to another.
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=========== DOCUMENTATION ===========
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Online html documentation available at
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http://www.netlib.org/lapack/explore-html/
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> \htmlonly
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> Download DLACPY + dependencies
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> <a href="http://www.netlib.org/cgi-bin/netlibfiles.tgz?format=tgz&filename=/lapack/lapack_routine/dlacpy.
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f">
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> [TGZ]</a>
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> <a href="http://www.netlib.org/cgi-bin/netlibfiles.zip?format=zip&filename=/lapack/lapack_routine/dlacpy.
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f">
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> [ZIP]</a>
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> <a href="http://www.netlib.org/cgi-bin/netlibfiles.txt?format=txt&filename=/lapack/lapack_routine/dlacpy.
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f">
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> [TXT]</a>
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> \endhtmlonly
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Definition:
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===========
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SUBROUTINE DLACPY( UPLO, M, N, A, LDA, B, LDB )
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CHARACTER UPLO
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INTEGER LDA, LDB, M, N
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DOUBLE PRECISION A( LDA, * ), B( LDB, * )
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> \par Purpose:
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=============
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>
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> \verbatim
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>
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> DLACPY copies all or part of a two-dimensional matrix A to another
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> matrix B.
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> \endverbatim
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Arguments:
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==========
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> \param[in] UPLO
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> \verbatim
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> UPLO is CHARACTER*1
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> Specifies the part of the matrix A to be copied to B.
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> = 'U': Upper triangular part
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> = 'L': Lower triangular part
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> Otherwise: All of the matrix A
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> \endverbatim
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>
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> \param[in] M
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> \verbatim
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> M is INTEGER
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> The number of rows of the matrix A. M >= 0.
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> \endverbatim
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>
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> \param[in] N
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> \verbatim
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> N is INTEGER
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> The number of columns of the matrix A. N >= 0.
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> \endverbatim
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>
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> \param[in] A
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> \verbatim
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> A is DOUBLE PRECISION array, dimension (LDA,N)
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> The m by n matrix A. If UPLO = 'U', only the upper triangle
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> or trapezoid is accessed; if UPLO = 'L', only the lower
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> triangle or trapezoid is accessed.
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> \endverbatim
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>
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> \param[in] LDA
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> \verbatim
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> LDA is INTEGER
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> The leading dimension of the array A. LDA >= max(1,M).
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> \endverbatim
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>
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> \param[out] B
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> \verbatim
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> B is DOUBLE PRECISION array, dimension (LDB,N)
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> On exit, B = A in the locations specified by UPLO.
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> \endverbatim
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>
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> \param[in] LDB
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> \verbatim
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> LDB is INTEGER
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> The leading dimension of the array B. LDB >= max(1,M).
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> \endverbatim
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Authors:
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========
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> \author Univ. of Tennessee
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> \author Univ. of California Berkeley
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> \author Univ. of Colorado Denver
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> \author NAG Ltd.
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> \date September 2012
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> \ingroup auxOTHERauxiliary
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=====================================================================
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Subroutine */ int igraphdlacpy_(char *uplo, integer *m, integer *n, doublereal *
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a, integer *lda, doublereal *b, integer *ldb)
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{
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/* System generated locals */
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integer a_dim1, a_offset, b_dim1, b_offset, i__1, i__2;
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/* Local variables */
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integer i__, j;
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extern logical igraphlsame_(char *, char *);
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/* -- LAPACK auxiliary routine (version 3.4.2) --
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-- LAPACK is a software package provided by Univ. of Tennessee, --
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-- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..--
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September 2012
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=====================================================================
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Parameter adjustments */
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a_dim1 = *lda;
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a_offset = 1 + a_dim1;
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a -= a_offset;
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b_dim1 = *ldb;
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b_offset = 1 + b_dim1;
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b -= b_offset;
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/* Function Body */
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if (igraphlsame_(uplo, "U")) {
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i__1 = *n;
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for (j = 1; j <= i__1; ++j) {
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i__2 = min(j,*m);
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for (i__ = 1; i__ <= i__2; ++i__) {
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b[i__ + j * b_dim1] = a[i__ + j * a_dim1];
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/* L10: */
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}
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/* L20: */
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}
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} else if (igraphlsame_(uplo, "L")) {
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i__1 = *n;
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for (j = 1; j <= i__1; ++j) {
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i__2 = *m;
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for (i__ = j; i__ <= i__2; ++i__) {
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b[i__ + j * b_dim1] = a[i__ + j * a_dim1];
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/* L30: */
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}
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/* L40: */
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}
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} else {
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i__1 = *n;
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for (j = 1; j <= i__1; ++j) {
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i__2 = *m;
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for (i__ = 1; i__ <= i__2; ++i__) {
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b[i__ + j * b_dim1] = a[i__ + j * a_dim1];
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/* L50: */
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}
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/* L60: */
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}
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}
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return 0;
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/* End of DLACPY */
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} /* igraphdlacpy_ */
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