mirror of https://github.com/macssh/macssh.git
71 lines
2.1 KiB
C
Executable File
71 lines
2.1 KiB
C
Executable File
/* Test file for mpfr_zeta.
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Copyright (C) 1999 PolKA project, Inria Lorraine and Loria
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This file is part of the MPFR Library.
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The MPFR Library is free software; you can redistribute it and/or modify
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it under the terms of the GNU Library General Public License as published by
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the Free Software Foundation; either version 2 of the License, or (at your
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option) any later version.
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The MPFR Library is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public
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License for more details.
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You should have received a copy of the GNU Library General Public License
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along with the MPFR Library; see the file COPYING.LIB. If not, write to
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the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
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MA 02111-1307, USA. */
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#include <stdio.h>
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#include <math.h>
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#include "gmp.h"
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#include "gmp-impl.h"
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#include "longlong.h"
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#include "mpfr.h"
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/* #define DEBUG */
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int main()
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{mpfr_t p,result,res_p; int succes; size_t t;
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mpfr_init2(result, 53);
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mpfr_init2(res_p, 53);
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mpfr_init2(p, 53); mpfr_set_d(p, 2.0, GMP_RNDN);
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mpfr_zeta(result,p,GMP_RNDN);
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/*printf("%d\n",succes);*/
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#ifdef DEBUG
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printf("Valeur de zeta(2) avec prec=53 et arrondi au plus pres:\n");
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mpfr_print_raw(result);printf("\n");
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t=mpfr_out_str(stdout,10,0,result,GMP_RNDN);printf("\n");
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#endif
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if (mpfr_get_d(result) != 1.64493406684822640607e+00) {
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fprintf(stderr, "mpfr_zeta fails for s=2 and rnd_mode=GMP_RNDN\n");
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exit(1);
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}
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/*Test de comparaison avec pi^2/6*/
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mpfr_set_prec(p, 67);
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mpfr_pi(p,GMP_RNDN);
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mpfr_mul(p,p,p,GMP_RNDN);
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mpfr_set_ui(res_p,6,GMP_RNDN);
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mpfr_div(p,p,res_p,GMP_RNDN);
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/*mpfr_print_raw(p);printf("\n");
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t=mpfr_out_str(stdout,10,0,p,GMP_RNDN);printf("\n");*/
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succes=mpfr_can_round(p,63,GMP_RNDN,GMP_RNDN,53);
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mpfr_set(res_p,p,GMP_RNDN);
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/*printf("%d\n",succes);*/
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#ifdef DEBUG
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printf("Valeur de pi^2/6 avec prec=53 et arrondi au plus pres:\n");
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mpfr_print_raw(res_p);printf("\n");
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t=mpfr_out_str(stdout,10,0,res_p,GMP_RNDN);printf("\n");
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#endif
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mpfr_clear(p);
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mpfr_clear(result);
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mpfr_clear(res_p);
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exit (0);
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}
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