--- /dev/null
+/* Test file for mpfr_greater_p, mpfr_greaterequal_p, mpfr_less_p,
+ mpfr_lessequal_p, mpfr_lessgreater_p, mpfr_equal_p, mpfr_unordered_p
+ functions.
+
+Copyright 2003, 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"
+
+static void
+cmp_tests (void)
+{
+ mpfr_t x, y;
+ long i;
+
+ mpfr_inits (x, y, (mpfr_ptr) 0);
+ for (i = 0; i < 80000; i++)
+ {
+ mp_prec_t precx, precy;
+ int signx, signy, cmp;
+ unsigned int cmpbool = 0;
+
+ precx = (randlimb () % 17) * 11 + MPFR_PREC_MIN;
+ precy = (randlimb () % 17) * 11 + MPFR_PREC_MIN;
+ mpfr_set_prec (x, precx);
+ mpfr_set_prec (y, precy);
+ mpfr_urandomb (x, RANDS);
+ mpfr_urandomb (y, RANDS);
+ signx = randlimb () & 1;
+ signy = randlimb () % 256 ? signx : 1 - signx;
+ /* signy = signx most of the time (most interesting case) */
+ if (signx)
+ mpfr_neg (x, x, GMP_RNDN);
+ if (signy)
+ mpfr_neg (y, y, GMP_RNDN);
+ if (i <= 1)
+ mpfr_set_nan (x);
+ if (i == 0 || i == 2)
+ mpfr_set_nan (y);
+ if (mpfr_greater_p (x, y))
+ cmpbool |= 0x01;
+ if (mpfr_greaterequal_p (x, y))
+ cmpbool |= 0x02;
+ if (mpfr_less_p (x, y))
+ cmpbool |= 0x04;
+ if (mpfr_lessequal_p (x, y))
+ cmpbool |= 0x08;
+ if (mpfr_lessgreater_p (x, y))
+ cmpbool |= 0x10;
+ if (mpfr_equal_p (x, y))
+ cmpbool |= 0x20;
+ if (mpfr_unordered_p (x, y))
+ cmpbool |= 0x40;
+ if ((i <= 2 && cmpbool != 0x40) ||
+ (i > 2 && (cmp = mpfr_cmp (x, y),
+ (cmp == 0 && cmpbool != 0x2a) ||
+ (cmp < 0 && cmpbool != 0x1c) ||
+ (cmp > 0 && cmpbool != 0x13))))
+ {
+ printf ("Error in cmp_tests for\nx = ");
+ mpfr_out_str (stdout, 2, 0, x, GMP_RNDN);
+ printf (" and\ny = ");
+ mpfr_out_str (stdout, 2, 0, y, GMP_RNDN);
+ printf ("\n");
+ exit (1);
+ }
+ }
+ mpfr_clears (x, y, (mpfr_ptr) 0);
+}
+
+static void
+eq_tests (void)
+{
+ mpfr_t x, y;
+ long i;
+
+ mpfr_inits (x, y, (mpfr_ptr) 0);
+ for (i = 0; i < 20000; i++)
+ {
+ mp_prec_t precx;
+
+ precx = (randlimb () % 17) * 11 + MPFR_PREC_MIN;
+ mpfr_set_prec (x, precx);
+ mpfr_set_prec (y, precx + (randlimb () % 64));
+ mpfr_urandomb (x, RANDS);
+ if (randlimb () & 1)
+ mpfr_neg (x, x, GMP_RNDN);
+ mpfr_set (y, x, GMP_RNDN); /* exact -> x = y */
+ if (mpfr_greater_p (x, y) || !mpfr_greaterequal_p (x, y) ||
+ mpfr_less_p (x, y) || !mpfr_lessequal_p (x, y) ||
+ mpfr_lessgreater_p (x, y) || !mpfr_equal_p (x, y) ||
+ mpfr_unordered_p (x, y))
+ {
+ printf ("Error in eq_tests for x = ");
+ mpfr_out_str (stdout, 2, 0, x, GMP_RNDN);
+ printf ("\n");
+ exit (1);
+ }
+ }
+ mpfr_clears (x, y, (mpfr_ptr) 0);
+}
+
+int
+main (void)
+{
+ tests_start_mpfr ();
+ cmp_tests ();
+ eq_tests ();
+ tests_end_mpfr ();
+ return 0;
+}