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Diffstat (limited to 'tests/tsqr_tmpl.c')
| -rw-r--r-- | tests/tsqr_tmpl.c | 199 |
1 files changed, 0 insertions, 199 deletions
diff --git a/tests/tsqr_tmpl.c b/tests/tsqr_tmpl.c deleted file mode 100644 index b39e89f..0000000 --- a/tests/tsqr_tmpl.c +++ /dev/null @@ -1,199 +0,0 @@ -/* tsqr_tmpl.c -- test file for mpc_sqr. - -Copyright (C) 2002, 2005, 2008, 2010, 2011, 2012, 2013 INRIA - -This file is part of GNU MPC. - -GNU MPC 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 3 of the License, or (at your -option) any later version. - -GNU MPC 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 this program. If not, see http://www.gnu.org/licenses/ . -*/ - -#include <stdlib.h> -#include "templates.h" - -static void -cmpsqr (mpc_srcptr x, mpc_rnd_t rnd) - /* computes the square of x with the specific function or by simple */ - /* multiplication using the rounding mode rnd and compares the results */ - /* and return values. */ - /* In our current test suite, the real and imaginary parts of x have */ - /* the same precision, and we use this precision also for the result. */ - /* Furthermore, we check whether computing the square in the same */ - /* place yields the same result. */ - /* We also compute the result with four times the precision and check */ - /* whether the rounding is correct. Error reports in this part of the */ - /* algorithm might still be wrong, though, since there are two */ - /* consecutive roundings. */ -{ - mpc_t z, t, u; - int inexact_z, inexact_t; - - mpc_init2 (z, MPC_MAX_PREC (x)); - mpc_init2 (t, MPC_MAX_PREC (x)); - mpc_init2 (u, 4 * MPC_MAX_PREC (x)); - - inexact_z = mpc_sqr (z, x, rnd); - inexact_t = mpc_mul (t, x, x, rnd); - - if (mpc_cmp (z, t)) - { - fprintf (stderr, "sqr and mul differ for rnd=(%s,%s) \nx=", - mpfr_print_rnd_mode(MPC_RND_RE(rnd)), - mpfr_print_rnd_mode(MPC_RND_IM(rnd))); - mpc_out_str (stderr, 2, 0, x, MPC_RNDNN); - fprintf (stderr, "\nmpc_sqr gives "); - mpc_out_str (stderr, 2, 0, z, MPC_RNDNN); - fprintf (stderr, "\nmpc_mul gives "); - mpc_out_str (stderr, 2, 0, t, MPC_RNDNN); - fprintf (stderr, "\n"); - exit (1); - } - if (inexact_z != inexact_t) - { - fprintf (stderr, "The return values of sqr and mul differ for rnd=(%s,%s) \nx= ", - mpfr_print_rnd_mode(MPC_RND_RE(rnd)), - mpfr_print_rnd_mode(MPC_RND_IM(rnd))); - mpc_out_str (stderr, 2, 0, x, MPC_RNDNN); - fprintf (stderr, "\nx^2="); - mpc_out_str (stderr, 2, 0, z, MPC_RNDNN); - fprintf (stderr, "\nmpc_sqr gives %i", inexact_z); - fprintf (stderr, "\nmpc_mul gives %i", inexact_t); - fprintf (stderr, "\n"); - exit (1); - } - - mpc_set (t, x, MPC_RNDNN); - inexact_t = mpc_sqr (t, t, rnd); - if (mpc_cmp (z, t)) - { - fprintf (stderr, "sqr and sqr in place differ for rnd=(%s,%s) \nx=", - mpfr_print_rnd_mode(MPC_RND_RE(rnd)), - mpfr_print_rnd_mode(MPC_RND_IM(rnd))); - mpc_out_str (stderr, 2, 0, x, MPC_RNDNN); - fprintf (stderr, "\nmpc_sqr gives "); - mpc_out_str (stderr, 2, 0, z, MPC_RNDNN); - fprintf (stderr, "\nmpc_sqr in place gives "); - mpc_out_str (stderr, 2, 0, t, MPC_RNDNN); - fprintf (stderr, "\n"); - exit (1); - } - if (inexact_z != inexact_t) - { - fprintf (stderr, "The return values of sqr and sqr in place differ for rnd=(%s,%s) \nx= ", - mpfr_print_rnd_mode(MPC_RND_RE(rnd)), - mpfr_print_rnd_mode(MPC_RND_IM(rnd))); - mpc_out_str (stderr, 2, 0, x, MPC_RNDNN); - fprintf (stderr, "\nx^2="); - mpc_out_str (stderr, 2, 0, z, MPC_RNDNN); - fprintf (stderr, "\nmpc_sqr gives %i", inexact_z); - fprintf (stderr, "\nmpc_sqr in place gives %i", inexact_t); - fprintf (stderr, "\n"); - exit (1); - } - - mpc_sqr (u, x, rnd); - mpc_set (t, u, rnd); - if (mpc_cmp (z, t)) - { - fprintf (stderr, "rounding in sqr might be incorrect for rnd=(%s,%s) \nx=", - mpfr_print_rnd_mode(MPC_RND_RE(rnd)), - mpfr_print_rnd_mode(MPC_RND_IM(rnd))); - mpc_out_str (stderr, 2, 0, x, MPC_RNDNN); - fprintf (stderr, "\nmpc_sqr gives "); - mpc_out_str (stderr, 2, 0, z, MPC_RNDNN); - fprintf (stderr, "\nmpc_sqr quadruple precision gives "); - mpc_out_str (stderr, 2, 0, u, MPC_RNDNN); - fprintf (stderr, "\nand is rounded to "); - mpc_out_str (stderr, 2, 0, t, MPC_RNDNN); - fprintf (stderr, "\n"); - exit (1); - } - - mpc_clear (z); - mpc_clear (t); - mpc_clear (u); -} - - -static void -testsqr (long a, long b, mpfr_prec_t prec, mpc_rnd_t rnd) -{ - mpc_t x; - - mpc_init2 (x, prec); - - mpc_set_si_si (x, a, b, rnd); - - cmpsqr (x, rnd); - - mpc_clear (x); -} - - -static void -reuse_bug (void) -{ - mpc_t z1; - - /* reuse bug found by Paul Zimmermann 20081021 */ - mpc_init2 (z1, 2); - /* RE (z1^2) overflows, IM(z^2) = -0 */ - mpfr_set_str (mpc_realref (z1), "0.11", 2, MPFR_RNDN); - mpfr_mul_2si (mpc_realref (z1), mpc_realref (z1), mpfr_get_emax (), MPFR_RNDN); - mpfr_set_ui (mpc_imagref (z1), 0, MPFR_RNDN); - mpc_conj (z1, z1, MPC_RNDNN); - mpc_sqr (z1, z1, MPC_RNDNN); - if (!mpfr_inf_p (mpc_realref (z1)) || mpfr_signbit (mpc_realref (z1)) - ||!mpfr_zero_p (mpc_imagref (z1)) || !mpfr_signbit (mpc_imagref (z1))) - { - printf ("Error: Regression, bug 20081021 reproduced\n"); - MPC_OUT (z1); - exit (1); - } - - mpc_clear (z1); -} - -#define MPC_FUNCTION_CALL \ - P[0].mpc_inex = mpc_sqr (P[1].mpc, P[2].mpc, P[3].mpc_rnd) -#define MPC_FUNCTION_CALL_REUSE_OP1 \ - P[0].mpc_inex = mpc_sqr (P[1].mpc, P[1].mpc, P[3].mpc_rnd) - -#include "data_check.tpl" -#include "tgeneric.tpl" - -int -main (void) -{ - test_start (); - - testsqr (247, -65, 8, 24); - testsqr (5, -896, 3, 2); - testsqr (-3, -512, 2, 16); - testsqr (266013312, 121990769, 27, 0); - testsqr (170, 9, 8, 0); - testsqr (768, 85, 8, 16); - testsqr (145, 1816, 8, 24); - testsqr (0, 1816, 8, 24); - testsqr (145, 0, 8, 24); - - data_check_template ("sqr.dsc", "sqr.dat"); - - tgeneric_template ("sqr.dsc", 2, 1024, 1, 1024); - - reuse_bug (); - - test_end (); - - return 0; -} |