File: [local] / OpenXM_contrib / gmp / mpfr / tests / Attic / tlog10.c (download)
Revision 1.1.1.1 (vendor branch), Mon Aug 25 16:06:10 2003 UTC (21 years, 1 month ago) by ohara
Branch: GMP
CVS Tags: VERSION_4_1_2, RELEASE_1_2_3, RELEASE_1_2_2_KNOPPIX_b, RELEASE_1_2_2_KNOPPIX Changes since 1.1: +0 -0
lines
Import gmp 4.1.2
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/* Test file for mpfr_log10.
Copyright 2001, 2002 Free Software Foundation.
Adapted from tsinh.c.
This file is part of the MPFR Library.
The MPFR Library is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or (at your
option) any later version.
The MPFR Library 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 Lesser General Public
License for more details.
You should have received a copy of the GNU Lesser General Public License
along with the MPFR Library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
MA 02111-1307, USA. */
#include <stdio.h>
#include <stdlib.h>
#include "gmp.h"
#include "mpfr.h"
#include "mpfr-test.h"
#define TEST_FUNCTION mpfr_log10
#include "tgeneric.c"
int
main (int argc, char *argv[])
{
mpfr_t x, y;
unsigned int n;
test_generic (2, 100, 100);
/* check log10(10^n)=n */
mpfr_init2 (x, 53);
mpfr_init2 (y, 53);
mpfr_set_ui (x, 1, GMP_RNDN);
for (n=1; n<=15; n++)
{
mpfr_mul_ui (x, x, 10, GMP_RNDN); /* x = 10^n */
mpfr_log10 (y, x, GMP_RNDN);
if (mpfr_get_d1 (y) != (double) n)
{
fprintf (stderr, "log10(10^n) <> n for n=%u\n", n);
exit (1);
}
}
mpfr_clear (x);
mpfr_clear (y);
return 0;
}