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remove redundant comments from generated C++ files. clean up with clang-format.

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This commit is contained in:
Axel Kohlmeyer
2022-12-28 16:31:50 -05:00
parent f157ba2389
commit 57713cf9a3
211 changed files with 6255 additions and 54891 deletions
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169
lib/linalg/dlaed5.cpp
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@ -1,176 +1,22 @@
/* fortran/dlaed5.f -- translated by f2c (version 20200916).
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 "lmp_f2c.h"
/* > \brief \b DLAED5 used by DSTEDC. Solves the 2-by-2 secular equation. */
/* =========== DOCUMENTATION =========== */
/* Online html documentation available at */
/* http://www.netlib.org/lapack/explore-html/ */
/* > \htmlonly */
/* > Download DLAED5 + dependencies */
/* > <a href="http://www.netlib.org/cgi-bin/netlibfiles.tgz?format=tgz&filename=/lapack/lapack_routine/dlaed5.
f"> */
/* > [TGZ]</a> */
/* > <a href="http://www.netlib.org/cgi-bin/netlibfiles.zip?format=zip&filename=/lapack/lapack_routine/dlaed5.
f"> */
/* > [ZIP]</a> */
/* > <a href="http://www.netlib.org/cgi-bin/netlibfiles.txt?format=txt&filename=/lapack/lapack_routine/dlaed5.
f"> */
/* > [TXT]</a> */
/* > \endhtmlonly */
/* Definition: */
/* =========== */
/* SUBROUTINE DLAED5( I, D, Z, DELTA, RHO, DLAM ) */
/* .. Scalar Arguments .. */
/* INTEGER I */
/* DOUBLE PRECISION DLAM, RHO */
/* .. */
/* .. Array Arguments .. */
/* DOUBLE PRECISION D( 2 ), DELTA( 2 ), Z( 2 ) */
/* .. */
/* > \par Purpose: */
/* ============= */
/* > */
/* > \verbatim */
/* > */
/* > This subroutine computes the I-th eigenvalue of a symmetric rank-one */
/* > modification of a 2-by-2 diagonal matrix */
/* > */
/* > diag( D ) + RHO * Z * transpose(Z) . */
/* > */
/* > The diagonal elements in the array D are assumed to satisfy */
/* > */
/* > D(i) < D(j) for i < j . */
/* > */
/* > We also assume RHO > 0 and that the Euclidean norm of the vector */
/* > Z is one. */
/* > \endverbatim */
/* Arguments: */
/* ========== */
/* > \param[in] I */
/* > \verbatim */
/* > I is INTEGER */
/* > The index of the eigenvalue to be computed. I = 1 or I = 2. */
/* > \endverbatim */
/* > */
/* > \param[in] D */
/* > \verbatim */
/* > D is DOUBLE PRECISION array, dimension (2) */
/* > The original eigenvalues. We assume D(1) < D(2). */
/* > \endverbatim */
/* > */
/* > \param[in] Z */
/* > \verbatim */
/* > Z is DOUBLE PRECISION array, dimension (2) */
/* > The components of the updating vector. */
/* > \endverbatim */
/* > */
/* > \param[out] DELTA */
/* > \verbatim */
/* > DELTA is DOUBLE PRECISION array, dimension (2) */
/* > The vector DELTA contains the information necessary */
/* > to construct the eigenvectors. */
/* > \endverbatim */
/* > */
/* > \param[in] RHO */
/* > \verbatim */
/* > RHO is DOUBLE PRECISION */
/* > The scalar in the symmetric updating formula. */
/* > \endverbatim */
/* > */
/* > \param[out] DLAM */
/* > \verbatim */
/* > DLAM is DOUBLE PRECISION */
/* > The computed lambda_I, the I-th updated eigenvalue. */
/* > \endverbatim */
/* Authors: */
/* ======== */
/* > \author Univ. of Tennessee */
/* > \author Univ. of California Berkeley */
/* > \author Univ. of Colorado Denver */
/* > \author NAG Ltd. */
/* > \ingroup auxOTHERcomputational */
/* > \par Contributors: */
/* ================== */
/* > */
/* > Ren-Cang Li, Computer Science Division, University of California */
/* > at Berkeley, USA */
/* > */
/* ===================================================================== */
/* Subroutine */ int dlaed5_(integer *i__, doublereal *d__, doublereal *z__,
doublereal *delta, doublereal *rho, doublereal *dlam)
int dlaed5_(integer *i__, doublereal *d__, doublereal *z__, doublereal *delta, doublereal *rho,
doublereal *dlam)
{
/* System generated locals */
doublereal d__1;
/* Builtin functions */
double sqrt(doublereal);
/* Local variables */
doublereal b, c__, w, del, tau, temp;
/* -- LAPACK computational routine -- */
/* -- LAPACK is a software package provided by Univ. of Tennessee, -- */
/* -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..-- */
/* .. Scalar Arguments .. */
/* .. */
/* .. Array Arguments .. */
/* .. */
/* ===================================================================== */
/* .. Parameters .. */
/* .. */
/* .. Local Scalars .. */
/* .. */
/* .. Intrinsic Functions .. */
/* .. */
/* .. Executable Statements .. */
/* Parameter adjustments */
--delta;
--z__;
--d__;
/* Function Body */
del = d__[2] - d__[1];
if (*i__ == 1) {
w = *rho * 2. * (z__[2] * z__[2] - z__[1] * z__[1]) / del + 1.;
if (w > 0.) {
b = del + *rho * (z__[1] * z__[1] + z__[2] * z__[2]);
c__ = *rho * z__[1] * z__[1] * del;
/* B > ZERO, always */
tau = c__ * 2. / (b + sqrt((d__1 = b * b - c__ * 4., abs(d__1))));
*dlam = d__[1] + tau;
delta[1] = -z__[1] / tau;
@ -191,9 +37,6 @@ f"> */
delta[1] /= temp;
delta[2] /= temp;
} else {
/* Now I=2 */
b = -del + *rho * (z__[1] * z__[1] + z__[2] * z__[2]);
c__ = *rho * z__[2] * z__[2] * del;
if (b > 0.) {
@ -209,11 +52,7 @@ f"> */
delta[2] /= temp;
}
return 0;
/* End of DLAED5 */
} /* dlaed5_ */
}
#ifdef __cplusplus
}
}
#endif