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sdmauxFill.c
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Mon, Jul 14, 23:05

sdmauxFill.c
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/* ************************************************************
MODULE sdmaux*.c -- Several low-level subroutines for the
mex-files in the Self-Dual-Minimization package.
% This file is part of SeDuMi 1.1 by Imre Polik and Oleksandr Romanko
% Copyright (C) 2005 McMaster University, Hamilton, CANADA (since 1.1)
%
% Copyright (C) 2001 Jos F. Sturm (up to 1.05R5)
% Dept. Econometrics & O.R., Tilburg University, the Netherlands.
% Supported by the Netherlands Organization for Scientific Research (NWO).
%
% Affiliation SeDuMi 1.03 and 1.04Beta (2000):
% Dept. Quantitative Economics, Maastricht University, the Netherlands.
%
% Affiliations up to SeDuMi 1.02 (AUG1998):
% CRL, McMaster University, Canada.
% Supported by the Netherlands Organization for Scientific Research (NWO).
%
% This program is free software; you can redistribute it and/or modify
% it under the terms of the GNU General Public License as published by
% the Free Software Foundation; either version 2 of the License, or
% (at your option) any later version.
%
% This program is distributed in the hope that it will be useful,
% but WITHOUT ANY WARRANTY; without even the implied warranty of
% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
% GNU General Public License for more details.
%
% You should have received a copy of the GNU General Public License
% along with this program; if not, write to the Free Software
% Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
% 02110-1301, USA
************************************************************ */
#include "blksdp.h"
/* ============================================================
ARRAY FILLING
============================================================ */
/* ************************************************************
TIME CRITICAL PROCEDURE fromto -- x = i:n-1
INPUT
i, n - first and just beyond last integer to write in x.
OUTPUT
x - (n-i) array, will contain x = i:(n-1)
************************************************************ */
void fromto(mwIndex *x, mwIndex i, const mwIndex n)
{
x -= i; /* makes x(i:n-1) valid */
for(; i < n; i++)
x[i] = i;
}
/* ************************************************************
PROCEDURE fzeros -- z = zeros(n,1)
INPUT n = length(z)
OUTPUT z = zeros(n,1)
************************************************************ */
void fzeros(double *z,const mwIndex n)
{
mwIndex k;
for(k=0; k+3 < n; ){ /* LEVEL 4 */
z[k] = 0.0; k++;
z[k] = 0.0; k++;
z[k] = 0.0; k++;
z[k] = 0.0; k++;
}
if(k+1 < n){ /* LEVEL 2 */
z[k] = 0.0; k++;
z[k] = 0.0; k++;
}
if(k < n) /* LEVEL 1 */
z[k] = 0.0;
}

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