Add graph references

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Abdelrahman Said
2026-06-28 13:49:01 +01:00
parent 0a9807e448
commit a11edf0c53
2578 changed files with 868045 additions and 0 deletions
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/* -- 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 DAXPY
=========== DOCUMENTATION ===========
Online html documentation available at
http://www.netlib.org/lapack/explore-html/
Definition:
===========
SUBROUTINE DAXPY(N,DA,DX,INCX,DY,INCY)
DOUBLE PRECISION DA
INTEGER INCX,INCY,N
DOUBLE PRECISION DX(*),DY(*)
> \par Purpose:
=============
>
> \verbatim
>
> DAXPY constant times a vector plus a vector.
> uses unrolled loops for increments equal to one.
> \endverbatim
Arguments:
==========
> \param[in] N
> \verbatim
> N is INTEGER
> number of elements in input vector(s)
> \endverbatim
>
> \param[in] DA
> \verbatim
> DA is DOUBLE PRECISION
> On entry, DA specifies the scalar alpha.
> \endverbatim
>
> \param[in] DX
> \verbatim
> DX is DOUBLE PRECISION array, dimension ( 1 + ( N - 1 )*abs( INCX ) )
> \endverbatim
>
> \param[in] INCX
> \verbatim
> INCX is INTEGER
> storage spacing between elements of DX
> \endverbatim
>
> \param[in,out] DY
> \verbatim
> DY is DOUBLE PRECISION array, dimension ( 1 + ( N - 1 )*abs( INCY ) )
> \endverbatim
>
> \param[in] INCY
> \verbatim
> INCY is INTEGER
> storage spacing between elements of DY
> \endverbatim
Authors:
========
> \author Univ. of Tennessee
> \author Univ. of California Berkeley
> \author Univ. of Colorado Denver
> \author NAG Ltd.
> \ingroup axpy
> \par Further Details:
=====================
>
> \verbatim
>
> jack dongarra, linpack, 3/11/78.
> modified 12/3/93, array(1) declarations changed to array(*)
> \endverbatim
>
=====================================================================
Subroutine */ int igraphdaxpy_(integer *n, doublereal *da, doublereal *dx,
integer *incx, doublereal *dy, integer *incy)
{
/* System generated locals */
integer i__1;
/* Local variables */
integer i__, m, ix, iy, mp1;
/* -- Reference BLAS level1 routine --
-- Reference BLAS is a software package provided by Univ. of Tennessee, --
-- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..--
=====================================================================
Parameter adjustments */
--dy;
--dx;
/* Function Body */
if (*n <= 0) {
return 0;
}
if (*da == 0.) {
return 0;
}
if (*incx == 1 && *incy == 1) {
/* code for both increments equal to 1
clean-up loop */
m = *n % 4;
if (m != 0) {
i__1 = m;
for (i__ = 1; i__ <= i__1; ++i__) {
dy[i__] += *da * dx[i__];
}
}
if (*n < 4) {
return 0;
}
mp1 = m + 1;
i__1 = *n;
for (i__ = mp1; i__ <= i__1; i__ += 4) {
dy[i__] += *da * dx[i__];
dy[i__ + 1] += *da * dx[i__ + 1];
dy[i__ + 2] += *da * dx[i__ + 2];
dy[i__ + 3] += *da * dx[i__ + 3];
}
} else {
/* code for unequal increments or equal increments
not equal to 1 */
ix = 1;
iy = 1;
if (*incx < 0) {
ix = (-(*n) + 1) * *incx + 1;
}
if (*incy < 0) {
iy = (-(*n) + 1) * *incy + 1;
}
i__1 = *n;
for (i__ = 1; i__ <= i__1; ++i__) {
dy[iy] += *da * dx[ix];
ix += *incx;
iy += *incy;
}
}
return 0;
/* End of DAXPY */
} /* igraphdaxpy_ */