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/* lapack/double/dlacpy.f -- translated by f2c (version 20050501).
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
*/
#ifdef __cplusplus
extern "C" {
#endif
#include "v3p_netlib.h"
/*< SUBROUTINE DLACPY( UPLO, M, N, A, LDA, B, LDB ) >*/
/* Subroutine */ int dlacpy_(char *uplo, integer *m, integer *n, doublereal *
a, integer *lda, doublereal *b, integer *ldb, ftnlen uplo_len)
{
/* System generated locals */
integer a_dim1, a_offset, b_dim1, b_offset, i__1, i__2;
/* Local variables */
integer i__, j;
extern logical lsame_(char *, char *, ftnlen, ftnlen);
(void)uplo_len;
/* -- LAPACK auxiliary routine (version 3.0) -- */
/* Univ. of Tennessee, Univ. of California Berkeley, NAG Ltd., */
/* Courant Institute, Argonne National Lab, and Rice University */
/* February 29, 1992 */
/* .. Scalar Arguments .. */
/*< CHARACTER UPLO >*/
/*< INTEGER LDA, LDB, M, N >*/
/* .. */
/* .. Array Arguments .. */
/*< DOUBLE PRECISION A( LDA, * ), B( LDB, * ) >*/
/* .. */
/* Purpose */
/* ======= */
/* DLACPY copies all or part of a two-dimensional matrix A to another */
/* matrix B. */
/* Arguments */
/* ========= */
/* UPLO (input) 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 */
/* M (input) INTEGER */
/* The number of rows of the matrix A. M >= 0. */
/* N (input) INTEGER */
/* The number of columns of the matrix A. N >= 0. */
/* A (input) 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. */
/* LDA (input) INTEGER */
/* The leading dimension of the array A. LDA >= max(1,M). */
/* B (output) DOUBLE PRECISION array, dimension (LDB,N) */
/* On exit, B = A in the locations specified by UPLO. */
/* LDB (input) INTEGER */
/* The leading dimension of the array B. LDB >= max(1,M). */
/* ===================================================================== */
/* .. Local Scalars .. */
/*< INTEGER I, J >*/
/* .. */
/* .. External Functions .. */
/*< LOGICAL LSAME >*/
/*< EXTERNAL LSAME >*/
/* .. */
/* .. Intrinsic Functions .. */
/*< INTRINSIC MIN >*/
/* .. */
/* .. Executable Statements .. */
/*< IF( LSAME( UPLO, 'U' ) ) THEN >*/
/* 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 (lsame_(uplo, "U", (ftnlen)1, (ftnlen)1)) {
/*< DO 20 J = 1, N >*/
i__1 = *n;
for (j = 1; j <= i__1; ++j) {
/*< DO 10 I = 1, MIN( J, M ) >*/
i__2 = min(j,*m);
for (i__ = 1; i__ <= i__2; ++i__) {
/*< B( I, J ) = A( I, J ) >*/
b[i__ + j * b_dim1] = a[i__ + j * a_dim1];
/*< 10 CONTINUE >*/
/* L10: */
}
/*< 20 CONTINUE >*/
/* L20: */
}
/*< ELSE IF( LSAME( UPLO, 'L' ) ) THEN >*/
} else if (lsame_(uplo, "L", (ftnlen)1, (ftnlen)1)) {
/*< DO 40 J = 1, N >*/
i__1 = *n;
for (j = 1; j <= i__1; ++j) {
/*< DO 30 I = J, M >*/
i__2 = *m;
for (i__ = j; i__ <= i__2; ++i__) {
/*< B( I, J ) = A( I, J ) >*/
b[i__ + j * b_dim1] = a[i__ + j * a_dim1];
/*< 30 CONTINUE >*/
/* L30: */
}
/*< 40 CONTINUE >*/
/* L40: */
}
/*< ELSE >*/
} else {
/*< DO 60 J = 1, N >*/
i__1 = *n;
for (j = 1; j <= i__1; ++j) {
/*< DO 50 I = 1, M >*/
i__2 = *m;
for (i__ = 1; i__ <= i__2; ++i__) {
/*< B( I, J ) = A( I, J ) >*/
b[i__ + j * b_dim1] = a[i__ + j * a_dim1];
/*< 50 CONTINUE >*/
/* L50: */
}
/*< 60 CONTINUE >*/
/* L60: */
}
/*< END IF >*/
}
/*< RETURN >*/
return 0;
/* End of DLACPY */
/*< END >*/
} /* dlacpy_ */
#ifdef __cplusplus
}
#endif
|
