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b58ddff026
* merged mpfr 3.0.0 and gmp 5.0.1 in buildtools trunk git-svn-id: file:///srv/svn/repos/haiku/buildtools/trunk@37378 a95241bf-73f2-0310-859d-f6bbb57e9c96
140 lines
3.5 KiB
C
140 lines
3.5 KiB
C
/* Test file for mpfr_sqr.
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Copyright 2004, 2005, 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
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Contributed by the Arenaire and Cacao projects, INRIA.
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This file is part of the GNU MPFR Library.
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The GNU MPFR Library is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 3 of the License, or (at your
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option) any later version.
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The GNU 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 Lesser General Public
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License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with the GNU MPFR Library; see the file COPYING.LESSER. If not, see
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http://www.gnu.org/licenses/ or write to the Free Software Foundation, Inc.,
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51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. */
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#include <stdio.h>
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#include <stdlib.h>
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#include "mpfr-test.h"
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#define TEST_FUNCTION mpfr_sqr
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#include "tgeneric.c"
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static int
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inexact_sign (int x)
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{
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return (x < 0) ? -1 : (x > 0);
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}
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static void
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error1 (mpfr_rnd_t rnd, mpfr_prec_t prec,
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mpfr_t in, mpfr_t outmul, mpfr_t outsqr)
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{
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printf("ERROR: for %s and prec=%lu\nINPUT=", mpfr_print_rnd_mode(rnd), prec);
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mpfr_dump(in);
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printf("OutputMul="); mpfr_dump(outmul);
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printf("OutputSqr="); mpfr_dump(outsqr);
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exit(1);
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}
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static void
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error2 (mpfr_rnd_t rnd, mpfr_prec_t prec, mpfr_t in, mpfr_t out,
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int inexactmul, int inexactsqr)
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{
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printf("ERROR: for %s and prec=%lu\nINPUT=", mpfr_print_rnd_mode(rnd), prec);
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mpfr_dump(in);
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printf("Output="); mpfr_dump(out);
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printf("InexactMul= %d InexactSqr= %d\n", inexactmul, inexactsqr);
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exit(1);
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}
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static void
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check_random (mpfr_prec_t p)
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{
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mpfr_t x,y,z;
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int r;
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int i, inexact1, inexact2;
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mpfr_inits2 (p, x, y, z, (mpfr_ptr) 0);
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for(i = 0 ; i < 500 ; i++)
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{
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mpfr_urandomb (x, RANDS);
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if (MPFR_IS_PURE_FP(x))
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for (r = 0 ; r < MPFR_RND_MAX ; r++)
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{
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inexact1 = mpfr_mul (y, x, x, (mpfr_rnd_t) r);
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inexact2 = mpfr_sqr (z, x, (mpfr_rnd_t) r);
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if (mpfr_cmp (y, z))
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error1 ((mpfr_rnd_t) r,p,x,y,z);
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if (inexact_sign (inexact1) != inexact_sign (inexact2))
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error2 ((mpfr_rnd_t) r,p,x,y,inexact1,inexact2);
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}
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}
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mpfr_clears (x, y, z, (mpfr_ptr) 0);
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}
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static void
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check_special (void)
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{
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mpfr_t x, y;
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mpfr_exp_t emin;
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mpfr_init (x);
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mpfr_init (y);
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mpfr_set_nan (x);
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mpfr_sqr (y, x, MPFR_RNDN);
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MPFR_ASSERTN (mpfr_nan_p (y));
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mpfr_set_inf (x, 1);
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mpfr_sqr (y, x, MPFR_RNDN);
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MPFR_ASSERTN (mpfr_inf_p (y) && mpfr_sgn (y) > 0);
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mpfr_set_inf (x, -1);
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mpfr_sqr (y, x, MPFR_RNDN);
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MPFR_ASSERTN (mpfr_inf_p (y) && mpfr_sgn (y) > 0);
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mpfr_set_ui (x, 0, MPFR_RNDN);
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mpfr_sqr (y, x, MPFR_RNDN);
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MPFR_ASSERTN (mpfr_zero_p (y));
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emin = mpfr_get_emin ();
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mpfr_set_emin (0);
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mpfr_set_ui (x, 1, MPFR_RNDN);
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mpfr_div_2ui (x, x, 1, MPFR_RNDN);
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MPFR_ASSERTN (!mpfr_zero_p (x));
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mpfr_sqr (y, x, MPFR_RNDN);
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MPFR_ASSERTN (mpfr_zero_p (y));
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mpfr_set_emin (emin);
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mpfr_clear (y);
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mpfr_clear (x);
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}
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int
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main (void)
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{
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mpfr_prec_t p;
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tests_start_mpfr ();
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check_special ();
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for (p = 2; p < 200; p++)
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check_random (p);
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test_generic (2, 200, 15);
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data_check ("data/sqr", mpfr_sqr, "mpfr_sqr");
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bad_cases (mpfr_sqr, mpfr_sqrt, "mpfr_sqr", 8, -256, 255, 4, 128, 800, 50);
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tests_end_mpfr ();
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return 0;
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}
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