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/* interpolation/bsearch.c
*
* Copyright (C) 1996, 1997, 1998, 1999, 2000 Gerard Jungman
*
* 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.
*/
/* Author: G. Jungman
*/
#include <config.h>
#include <stdlib.h>
#include <gsl/gsl_interp.h>
#ifndef HIDE_INLINE_STATIC
size_t
gsl_interp_bsearch (
const double x_array[], double x,
size_t index_lo,
size_t index_hi
)
{
size_t ilo = index_lo;
size_t ihi = index_hi;
while (ihi > ilo + 1)
{
size_t i = (ihi + ilo) / 2;
if (x_array[i] > x)
ihi = i;
else
ilo = i;
}
return ilo;
}
#endif
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