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/* Test file for mpfr_set_f.
Copyright (C) 1999 Free Software Foundation.
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 Library General Public License as published by
the Free Software Foundation; either version 2 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 Library General Public
License for more details.
You should have received a copy of the GNU Library 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 "time.h"
#if defined(hpux)
#define srandom srand48
#endif
int
main()
{
mpfr_t x, u; mpf_t y, z; unsigned long k, pr;
mpfr_init2(x, 100);
mpf_init(y);
mpf_init(z);
mpf_set_d(y, 0.0);
mpfr_set_f(x, y, GMP_RNDN);
srandom((int)time(NULL));
mpf_random2(y, 10, 0);
mpfr_set_f(x, y, rand() & 3);
/* bug found by Jean-Pierre Merlet */
mpfr_set_prec(x, 256); mpf_set_prec(y, 256);
mpfr_init2(u, 256);
mpfr_set_str(u,
"7.f10872b020c49ba5e353f7ced916872b020c49ba5e353f7ced916872b020c498@2",
16, GMP_RNDN);
mpf_set_str(y, "2033.033", 10);
mpfr_set_f(x, y, GMP_RNDN);
if (mpfr_cmp(x, u)) {
fprintf(stderr, "mpfr_set_f failed for y=2033.033\n"); exit(1);
}
mpf_set_str(y, "-2033.033", 10);
mpfr_set_f(x, y, GMP_RNDN);
mpfr_neg(u, u, GMP_RNDN);
if (mpfr_cmp(x, u)) {
fprintf(stderr, "mpfr_set_f failed for y=-2033.033\n"); exit(1);
}
mpfr_clear(u);
mpfr_clear(x);
for (k = 1; k <= 100000; k++)
{
pr = 1 + (rand()&255);
mpf_set_prec(z, pr);
mpf_random2(z, z->_mp_prec, 0);
mpfr_init2(x, pr);
mpfr_set_f(x, z, 0);
mpfr_clear(x);
}
mpf_clear(y);
mpf_clear(z);
return(0);
}
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