--- /dev/null
+/* Test file for mpfr_cmp.
+
+Copyright 1999, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
+Contributed by the Arenaire and Cacao projects, INRIA.
+
+This file is part of the GNU MPFR Library.
+
+The GNU MPFR 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 2.1 of the License, or (at your
+option) any later version.
+
+The GNU MPFR 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 MPFR Library; see the file COPYING.LIB. If not, write to
+the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
+MA 02110-1301, USA. */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "mpfr-test.h"
+
+int
+main (void)
+{
+ double x, y;
+ mpfr_t xx, yy;
+ int c;
+ long i;
+ mp_prec_t p;
+
+ tests_start_mpfr ();
+
+ mpfr_init (xx);
+ mpfr_init (yy);
+
+ mpfr_set_prec (xx, 2);
+ mpfr_set_prec (yy, 2);
+ mpfr_set_str_binary(xx, "-0.10E0");
+ mpfr_set_str_binary(yy, "-0.10E0");
+ if ((mpfr_cmp) (xx, yy))
+ {
+ printf ("mpfr_cmp (xx, yy) returns non-zero for prec=2\n");
+ exit (1);
+ }
+
+ mpfr_set_prec (xx, 65);
+ mpfr_set_prec (yy, 65);
+ mpfr_set_str_binary(xx, "0.10011010101000110101010000000011001001001110001011101011111011101E623");
+ mpfr_set_str_binary(yy, "0.10011010101000110101010000000011001001001110001011101011111011100E623");
+ p = 0;
+ if (mpfr_cmp2 (xx, yy, &p) <= 0 || p != 64)
+ {
+ printf ("Error (1) in mpfr_cmp2\n");
+ exit (1);
+ }
+ mpfr_set_str_binary(xx, "0.10100010001110110111000010001000010011111101000100011101000011100");
+ mpfr_set_str_binary(yy, "0.10100010001110110111000010001000010011111101000100011101000011011");
+ p = 0;
+ if (mpfr_cmp2 (xx, yy, &p) <= 0 || p != 64)
+ {
+ printf ("Error (2) in mpfr_cmp2\n");
+ exit (1);
+ }
+
+ mpfr_set_prec (xx, 160); mpfr_set_prec (yy, 160);
+ mpfr_set_str_binary (xx, "0.1E1");
+ mpfr_set_str_binary (yy, "0.1111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111100000110001110100");
+ p = 0;
+ if (mpfr_cmp2 (xx, yy, &p) <= 0 || p != 144)
+ {
+ printf ("Error (3) in mpfr_cmp2\n");
+ exit (1);
+ }
+
+ mpfr_set_prec (xx, 53);
+ mpfr_set_prec (yy, 200);
+ mpfr_set_ui (xx, 1, (mp_rnd_t) 0);
+ mpfr_set_ui (yy, 1, (mp_rnd_t) 0);
+ if (mpfr_cmp (xx, yy) != 0)
+ {
+ printf ("Error in mpfr_cmp: 1.0 != 1.0\n");
+ exit (1);
+ }
+ mpfr_set_prec (yy, 31);
+ mpfr_set_str (xx, "1.0000000002", 10, (mp_rnd_t) 0);
+ mpfr_set_ui (yy, 1, (mp_rnd_t) 0);
+ if (!(mpfr_cmp (xx,yy)>0))
+ {
+ printf ("Error in mpfr_cmp: not 1.0000000002 > 1.0\n");
+ exit (1);
+ }
+ mpfr_set_prec (yy, 53);
+
+ /* bug found by Gerardo Ballabio */
+ mpfr_set_ui(xx, 0, GMP_RNDN);
+ mpfr_set_str (yy, "0.1", 10, GMP_RNDN);
+ if ((c = mpfr_cmp (xx, yy)) >= 0)
+ {
+ printf ("Error in mpfr_cmp(0.0, 0.1), gives %d\n", c);
+ exit (1);
+ }
+
+ mpfr_set_inf (xx, 1);
+ mpfr_set_str (yy, "-23489745.0329", 10, GMP_RNDN);
+ if ((c = mpfr_cmp (xx, yy)) <= 0)
+ {
+ printf ("Error in mpfr_cmp(Infp, 23489745.0329), gives %d\n", c);
+ exit (1);
+ }
+
+ mpfr_set_inf (xx, 1);
+ mpfr_set_inf (yy, -1);
+ if ((c = mpfr_cmp (xx, yy)) <= 0)
+ {
+ printf ("Error in mpfr_cmp(Infp, Infm), gives %d\n", c);
+ exit (1);
+ }
+
+ mpfr_set_inf (xx, -1);
+ mpfr_set_inf (yy, 1);
+ if ((c = mpfr_cmp (xx, yy)) >= 0)
+ {
+ printf ("Error in mpfr_cmp(Infm, Infp), gives %d\n", c);
+ exit (1);
+ }
+
+ mpfr_set_inf (xx, 1);
+ mpfr_set_inf (yy, 1);
+ if ((c = mpfr_cmp (xx, yy)) != 0)
+ {
+ printf ("Error in mpfr_cmp(Infp, Infp), gives %d\n", c);
+ exit (1);
+ }
+
+ mpfr_set_inf (xx, -1);
+ mpfr_set_inf (yy, -1);
+ if ((c = mpfr_cmp (xx, yy)) != 0)
+ {
+ printf ("Error in mpfr_cmp(Infm, Infm), gives %d\n", c);
+ exit (1);
+ }
+
+ mpfr_set_inf (xx, -1);
+ mpfr_set_str (yy, "2346.09234", 10, GMP_RNDN);
+ if ((c = mpfr_cmp (xx, yy)) >= 0)
+ {
+ printf ("Error in mpfr_cmp(Infm, 2346.09234), gives %d\n", c);
+ exit (1);
+ }
+
+ mpfr_set_ui (xx, 0, GMP_RNDN);
+ mpfr_set_ui (yy, 1, GMP_RNDN);
+ if ((c = mpfr_cmp3 (xx, yy, 1)) >= 0)
+ {
+ printf ("Error: mpfr_cmp3 (0, 1, 1) gives %d instead of"
+ " a negative value\n", c);
+ exit (1);
+ }
+ if ((c = mpfr_cmp3 (xx, yy, -1)) <= 0)
+ {
+ printf ("Error: mpfr_cmp3 (0, 1, -1) gives %d instead of"
+ " a positive value\n", c);
+ exit (1);
+ }
+
+ for (i=0; i<500000; )
+ {
+ x = DBL_RAND ();
+ y = DBL_RAND ();
+ if (!Isnan(x) && !Isnan(y))
+ {
+ i++;
+ mpfr_set_d (xx, x, GMP_RNDN);
+ mpfr_set_d (yy, y, GMP_RNDN);
+ c = mpfr_cmp (xx,yy);
+ if ((c>0 && x<=y) || (c==0 && x!=y) || (c<0 && x>=y))
+ {
+ printf ("Error in mpfr_cmp with x=%1.20e, y=%1.20e"
+ " mpfr_cmp(x,y)=%d\n", x, y, c);
+ exit (1);
+ }
+ }
+ }
+
+ /* Check for NAN */
+ mpfr_set_nan (xx);
+ mpfr_clear_erangeflag ();
+ c = (mpfr_cmp) (xx, yy);
+ if (c != 0 || !mpfr_erangeflag_p () )
+ {
+ printf ("NAN error (1)\n");
+ exit (1);
+ }
+ mpfr_clear_erangeflag ();
+ c = (mpfr_cmp) (yy, xx);
+ if (c != 0 || !mpfr_erangeflag_p () )
+ {
+ printf ("NAN error (2)\n");
+ exit (1);
+ }
+ mpfr_clear_erangeflag ();
+ c = (mpfr_cmp) (xx, xx);
+ if (c != 0 || !mpfr_erangeflag_p () )
+ {
+ printf ("NAN error (3)\n");
+ exit (1);
+ }
+
+ mpfr_clear (xx);
+ mpfr_clear (yy);
+
+ tests_end_mpfr ();
+ return 0;
+}
projects / msp430-gcc.git / blobdiff