--- /dev/null
+/* Test file for mpfr_check.
+
+Copyright 2003, 2004, 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 <stdlib.h>
+#include <stdio.h>
+
+#include "mpfr-test.h"
+
+#define ERROR(s) printf("mpfr_check failed " s " Prec=%lu\n", pr), exit(1)
+
+int
+main (void)
+{
+ mpfr_t a;
+ mp_limb_t *p, tmp;
+ mp_size_t s;
+ mpfr_prec_t pr;
+ int max;
+
+ tests_start_mpfr ();
+ for(pr = MPFR_PREC_MIN ; pr < 500 ; pr++)
+ {
+ mpfr_init2 (a, pr);
+ if (!mpfr_check(a)) ERROR("for init");
+ /* Check special cases */
+ MPFR_SET_NAN(a);
+ if (!mpfr_check(a)) ERROR("for nan");
+ MPFR_SET_POS(a);
+ MPFR_SET_INF(a);
+ if (!mpfr_check(a)) ERROR("for inf");
+ MPFR_SET_ZERO(a);
+ if (!mpfr_check(a)) ERROR("for zero");
+ /* Check var */
+ mpfr_set_ui(a, 2, GMP_RNDN);
+ if (!mpfr_check(a)) ERROR("for set_ui");
+ mpfr_clear_overflow();
+ max = 1000; /* Allows max 2^1000 bits for the exponent */
+ while ((!mpfr_overflow_p()) && (max>0))
+ {
+ mpfr_mul(a, a, a, GMP_RNDN);
+ if (!mpfr_check(a)) ERROR("for mul");
+ max--;
+ }
+ if (max==0) ERROR("can't reach overflow");
+ mpfr_set_ui(a, 2137, GMP_RNDN);
+ /* Corrupt a and check for it */
+ MPFR_SIGN(a) = 2;
+ if (mpfr_check(a)) ERROR("sgn");
+ MPFR_SET_POS(a);
+ /* Check prec */
+ MPFR_PREC(a) = 1;
+ if (mpfr_check(a)) ERROR("precmin");
+ MPFR_PREC(a) = MPFR_PREC_MAX+1;
+ if (mpfr_check(a)) ERROR("precmax");
+ MPFR_PREC(a) = pr;
+ if (!mpfr_check(a)) ERROR("prec");
+ /* Check exponent */
+ MPFR_EXP(a) = MPFR_EXP_INVALID;
+ if (mpfr_check(a)) ERROR("exp invalid");
+ MPFR_EXP(a) = -MPFR_EXP_INVALID;
+ if (mpfr_check(a)) ERROR("-exp invalid");
+ MPFR_EXP(a) = 0;
+ if (!mpfr_check(a)) ERROR("exp 0");
+ /* Check Mantissa */
+ p = MPFR_MANT(a);
+ MPFR_MANT(a) = NULL;
+ if (mpfr_check(a)) ERROR("Mantissa Null Ptr");
+ MPFR_MANT(a) = p;
+ /* Check size */
+ s = MPFR_GET_ALLOC_SIZE(a);
+ MPFR_SET_ALLOC_SIZE(a, 0);
+ if (mpfr_check(a)) ERROR("0 size");
+ MPFR_SET_ALLOC_SIZE(a, MP_SIZE_T_MIN);
+ if (mpfr_check(a)) ERROR("min size");
+ MPFR_SET_ALLOC_SIZE(a, MPFR_LIMB_SIZE(a)-1 );
+ if (mpfr_check(a)) ERROR("size < prec");
+ MPFR_SET_ALLOC_SIZE(a, s);
+ /* Check normal form */
+ tmp = MPFR_MANT(a)[0];
+ if ((pr % BITS_PER_MP_LIMB) != 0)
+ {
+ MPFR_MANT(a)[0] = ~0;
+ if (mpfr_check(a)) ERROR("last bits non 0");
+ }
+ MPFR_MANT(a)[0] = tmp;
+ MPFR_MANT(a)[MPFR_LIMB_SIZE(a)-1] &= MPFR_LIMB_MASK (BITS_PER_MP_LIMB-1);
+ if (mpfr_check(a)) ERROR("last bits non 0");
+ /* Final */
+ mpfr_set_ui(a, 2137, GMP_RNDN);
+ if (!mpfr_check(a)) ERROR("after last set");
+ mpfr_clear (a);
+ if (mpfr_check(a)) ERROR("after clear");
+ }
+ tests_end_mpfr ();
+ return 0;
+}