t-fits.c
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上传日期:2022-08-06
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- /* Test mpf_fits_*_p
- Copyright 2001, 2002 Free Software Foundation, Inc.
- This file is part of the GNU MP Library.
- The GNU MP 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 3 of the License, or (at your
- option) any later version.
- The GNU MP 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 GNU MP Library. If not, see http://www.gnu.org/licenses/. */
- #include <stdio.h>
- #include <stdlib.h>
- #include "gmp.h"
- #include "gmp-impl.h"
- #include "tests.h"
- /* Nothing sophisticated here, just exercise mpf_fits_*_p on a small amount
- of data. */
- #define EXPECT_S(fun,name,answer)
- got = fun (f);
- if (got != answer)
- {
- printf ("%s (%s) got %d want %dn", name, expr, got, answer);
- printf (" f size %d exp %ldn", SIZ(f), EXP(f));
- printf (" f dec "); mpf_out_str (stdout, 10, 0, f); printf ("n");
- printf (" f hex "); mpf_out_str (stdout, 16, 0, f); printf ("n");
- error = 1;
- }
- #if HAVE_STRINGIZE
- #define EXPECT(fun,answer) EXPECT_S(fun,#fun,answer)
- #else
- #define EXPECT(fun,answer) EXPECT_S(fun,"fun",answer)
- #endif
- int
- main (void)
- {
- mpf_t f, f0p5;
- int got;
- const char *expr;
- int error = 0;
- tests_start ();
- mpf_init2 (f, 200L);
- mpf_init2 (f0p5, 200L);
- /* 0.5 */
- mpf_set_ui (f0p5, 1L);
- mpf_div_2exp (f0p5, f0p5, 1L);
- mpf_set_ui (f, 0L);
- expr = "0";
- EXPECT (mpf_fits_ulong_p, 1);
- EXPECT (mpf_fits_uint_p, 1);
- EXPECT (mpf_fits_ushort_p, 1);
- EXPECT (mpf_fits_slong_p, 1);
- EXPECT (mpf_fits_sint_p, 1);
- EXPECT (mpf_fits_sshort_p, 1);
- mpf_set_ui (f, 1L);
- expr = "1";
- EXPECT (mpf_fits_ulong_p, 1);
- EXPECT (mpf_fits_uint_p, 1);
- EXPECT (mpf_fits_ushort_p, 1);
- EXPECT (mpf_fits_slong_p, 1);
- EXPECT (mpf_fits_sint_p, 1);
- EXPECT (mpf_fits_sshort_p, 1);
- mpf_set_si (f, -1L);
- expr = "-1";
- EXPECT (mpf_fits_ulong_p, 0);
- EXPECT (mpf_fits_uint_p, 0);
- EXPECT (mpf_fits_ushort_p, 0);
- EXPECT (mpf_fits_slong_p, 1);
- EXPECT (mpf_fits_sint_p, 1);
- EXPECT (mpf_fits_sshort_p, 1);
- mpf_set_ui (f, (unsigned long) USHRT_MAX);
- expr = "USHRT_MAX";
- EXPECT (mpf_fits_ulong_p, 1);
- EXPECT (mpf_fits_uint_p, 1);
- EXPECT (mpf_fits_ushort_p, 1);
- mpf_set_ui (f, (unsigned long) USHRT_MAX);
- mpf_add (f, f, f0p5);
- expr = "USHRT_MAX + 0.5";
- EXPECT (mpf_fits_ulong_p, 1);
- EXPECT (mpf_fits_uint_p, 1);
- EXPECT (mpf_fits_ushort_p, 1);
- mpf_set_ui (f, (unsigned long) USHRT_MAX);
- mpf_add_ui (f, f, 1L);
- expr = "USHRT_MAX + 1";
- EXPECT (mpf_fits_ushort_p, 0);
- mpf_set_ui (f, (unsigned long) UINT_MAX);
- expr = "UINT_MAX";
- EXPECT (mpf_fits_ulong_p, 1);
- EXPECT (mpf_fits_uint_p, 1);
- mpf_set_ui (f, (unsigned long) UINT_MAX);
- mpf_add (f, f, f0p5);
- expr = "UINT_MAX + 0.5";
- EXPECT (mpf_fits_ulong_p, 1);
- EXPECT (mpf_fits_uint_p, 1);
- mpf_set_ui (f, (unsigned long) UINT_MAX);
- mpf_add_ui (f, f, 1L);
- expr = "UINT_MAX + 1";
- EXPECT (mpf_fits_uint_p, 0);
- mpf_set_ui (f, ULONG_MAX);
- expr = "ULONG_MAX";
- EXPECT (mpf_fits_ulong_p, 1);
- mpf_set_ui (f, ULONG_MAX);
- mpf_add (f, f, f0p5);
- expr = "ULONG_MAX + 0.5";
- EXPECT (mpf_fits_ulong_p, 1);
- mpf_set_ui (f, ULONG_MAX);
- mpf_add_ui (f, f, 1L);
- expr = "ULONG_MAX + 1";
- EXPECT (mpf_fits_ulong_p, 0);
- mpf_set_si (f, (long) SHRT_MAX);
- expr = "SHRT_MAX";
- EXPECT (mpf_fits_slong_p, 1);
- EXPECT (mpf_fits_sint_p, 1);
- EXPECT (mpf_fits_sshort_p, 1);
- mpf_set_si (f, (long) SHRT_MAX);
- expr = "SHRT_MAX + 0.5";
- mpf_add (f, f, f0p5);
- EXPECT (mpf_fits_slong_p, 1);
- EXPECT (mpf_fits_sint_p, 1);
- EXPECT (mpf_fits_sshort_p, 1);
- mpf_set_si (f, (long) SHRT_MAX);
- mpf_add_ui (f, f, 1L);
- expr = "SHRT_MAX + 1";
- EXPECT (mpf_fits_sshort_p, 0);
- mpf_set_si (f, (long) INT_MAX);
- expr = "INT_MAX";
- EXPECT (mpf_fits_slong_p, 1);
- EXPECT (mpf_fits_sint_p, 1);
- mpf_set_si (f, (long) INT_MAX);
- mpf_add (f, f, f0p5);
- expr = "INT_MAX + 0.5";
- EXPECT (mpf_fits_slong_p, 1);
- EXPECT (mpf_fits_sint_p, 1);
- mpf_set_si (f, (long) INT_MAX);
- mpf_add_ui (f, f, 1L);
- expr = "INT_MAX + 1";
- EXPECT (mpf_fits_sint_p, 0);
- mpf_set_si (f, LONG_MAX);
- expr = "LONG_MAX";
- EXPECT (mpf_fits_slong_p, 1);
- mpf_set_si (f, LONG_MAX);
- mpf_add (f, f, f0p5);
- expr = "LONG_MAX + 0.5";
- EXPECT (mpf_fits_slong_p, 1);
- mpf_set_si (f, LONG_MAX);
- mpf_add_ui (f, f, 1L);
- expr = "LONG_MAX + 1";
- EXPECT (mpf_fits_slong_p, 0);
- mpf_set_si (f, (long) SHRT_MIN);
- expr = "SHRT_MIN";
- EXPECT (mpf_fits_slong_p, 1);
- EXPECT (mpf_fits_sint_p, 1);
- EXPECT (mpf_fits_sshort_p, 1);
- mpf_set_si (f, (long) SHRT_MIN);
- mpf_sub (f, f, f0p5);
- expr = "SHRT_MIN - 0.5";
- EXPECT (mpf_fits_slong_p, 1);
- EXPECT (mpf_fits_sint_p, 1);
- EXPECT (mpf_fits_sshort_p, 1);
- mpf_set_si (f, (long) SHRT_MIN);
- mpf_sub_ui (f, f, 1L);
- expr = "SHRT_MIN + 1";
- EXPECT (mpf_fits_sshort_p, 0);
- mpf_set_si (f, (long) INT_MIN);
- expr = "INT_MIN";
- EXPECT (mpf_fits_slong_p, 1);
- EXPECT (mpf_fits_sint_p, 1);
- mpf_set_si (f, (long) INT_MIN);
- mpf_sub (f, f, f0p5);
- expr = "INT_MIN - 0.5";
- EXPECT (mpf_fits_slong_p, 1);
- EXPECT (mpf_fits_sint_p, 1);
- mpf_set_si (f, (long) INT_MIN);
- mpf_sub_ui (f, f, 1L);
- expr = "INT_MIN + 1";
- EXPECT (mpf_fits_sint_p, 0);
- mpf_set_si (f, LONG_MIN);
- expr = "LONG_MIN";
- EXPECT (mpf_fits_slong_p, 1);
- mpf_set_si (f, LONG_MIN);
- mpf_sub (f, f, f0p5);
- expr = "LONG_MIN - 0.5";
- EXPECT (mpf_fits_slong_p, 1);
- mpf_set_si (f, LONG_MIN);
- mpf_sub_ui (f, f, 1L);
- expr = "LONG_MIN + 1";
- EXPECT (mpf_fits_slong_p, 0);
- mpf_set_str_or_abort (f, "0.5", 10);
- expr = "0.5";
- EXPECT (mpf_fits_ulong_p, 1);
- EXPECT (mpf_fits_uint_p, 1);
- EXPECT (mpf_fits_ushort_p, 1);
- EXPECT (mpf_fits_slong_p, 1);
- EXPECT (mpf_fits_sint_p, 1);
- EXPECT (mpf_fits_sshort_p, 1);
- mpf_set_str_or_abort (f, "-0.5", 10);
- expr = "-0.5";
- EXPECT (mpf_fits_ulong_p, 0);
- EXPECT (mpf_fits_uint_p, 0);
- EXPECT (mpf_fits_ushort_p, 0);
- EXPECT (mpf_fits_slong_p, 1);
- EXPECT (mpf_fits_sint_p, 1);
- EXPECT (mpf_fits_sshort_p, 1);
- mpf_set_str_or_abort (f, "1.000000000000000000000000000000000001", 16);
- expr = "1.000000000000000000000000000000000001 base 16";
- EXPECT (mpf_fits_ulong_p, 1);
- EXPECT (mpf_fits_uint_p, 1);
- EXPECT (mpf_fits_ushort_p, 1);
- EXPECT (mpf_fits_slong_p, 1);
- EXPECT (mpf_fits_sint_p, 1);
- EXPECT (mpf_fits_sshort_p, 1);
- mpf_set_str_or_abort (f, "1@1000", 16);
- expr = "1@1000 base 16";
- EXPECT (mpf_fits_ulong_p, 0);
- EXPECT (mpf_fits_uint_p, 0);
- EXPECT (mpf_fits_ushort_p, 0);
- EXPECT (mpf_fits_slong_p, 0);
- EXPECT (mpf_fits_sint_p, 0);
- EXPECT (mpf_fits_sshort_p, 0);
- mpf_set_ui (f, 1L);
- mpf_mul_2exp (f, f, BITS_PER_ULONG + 1);
- mpf_sub_ui (f, f, 1L);
- expr = "2^(BITS_PER_ULONG+1) - 1";
- EXPECT (mpf_fits_ulong_p, 0);
- EXPECT (mpf_fits_uint_p, 0);
- EXPECT (mpf_fits_ushort_p, 0);
- EXPECT (mpf_fits_slong_p, 0);
- EXPECT (mpf_fits_sint_p, 0);
- EXPECT (mpf_fits_sshort_p, 0);
- mpf_set_ui (f, 1L);
- mpf_mul_2exp (f, f, BITS_PER_ULONG + 1);
- mpf_sub_ui (f, f, 1L);
- mpf_neg (f, f);
- expr = "- (2^(BITS_PER_ULONG+1) - 1)";
- EXPECT (mpf_fits_ulong_p, 0);
- EXPECT (mpf_fits_uint_p, 0);
- EXPECT (mpf_fits_ushort_p, 0);
- EXPECT (mpf_fits_slong_p, 0);
- EXPECT (mpf_fits_sint_p, 0);
- EXPECT (mpf_fits_sshort_p, 0);
- mpf_set_ui (f, 1L);
- mpf_mul_2exp (f, f, BITS_PER_ULONG + 5);
- mpf_sub_ui (f, f, 1L);
- expr = "2^(BITS_PER_ULONG+5) - 1";
- EXPECT (mpf_fits_ulong_p, 0);
- EXPECT (mpf_fits_uint_p, 0);
- EXPECT (mpf_fits_ushort_p, 0);
- EXPECT (mpf_fits_slong_p, 0);
- EXPECT (mpf_fits_sint_p, 0);
- EXPECT (mpf_fits_sshort_p, 0);
- if (error)
- abort ();
- mpf_clear (f);
- mpf_clear (f0p5);
- tests_end ();
- exit (0);
- }