--- /dev/null
+/* 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 %d\n", name, expr, got, answer); \
+ printf (" f size %d exp %ld\n", 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);
+}
projects / msp430-gcc.git / blobdiff