--- /dev/null
+/* Test file for mpfr_sub1sp.
+
+Copyright 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"
+
+static void check_special (void);
+static void check_random (mpfr_prec_t p);
+
+int
+main (void)
+{
+ mpfr_prec_t p;
+
+ tests_start_mpfr ();
+
+ check_special ();
+ for (p = 2 ; p < 200 ; p++)
+ check_random (p);
+
+ tests_end_mpfr ();
+ return 0;
+}
+
+#define STD_ERROR \
+ {\
+ printf("ERROR: for %s and p=%lu and i=%d:\nY=",\
+ mpfr_print_rnd_mode ((mp_rnd_t) r), p, i);\
+ mpfr_print_binary(y);\
+ printf("\nZ="); mpfr_print_binary(z);\
+ printf("\nReal: "); mpfr_print_binary(x2);\
+ printf("\nGot : "); mpfr_print_binary(x);\
+ putchar('\n');\
+ exit(1);\
+ }
+
+#define STD_ERROR2 \
+ {\
+ printf("ERROR: for %s and p=%lu and i=%d:\nY=",\
+ mpfr_print_rnd_mode ((mp_rnd_t) r), p, i);\
+ mpfr_print_binary(y);\
+ printf("\nZ="); mpfr_print_binary(z);\
+ printf("\nR="); mpfr_print_binary(x);\
+ printf("\nWrong inexact flag. Real: %d. Got: %d\n", \
+ inexact1, inexact2); \
+ exit(1);\
+ }
+
+static void
+check_random (mpfr_prec_t p)
+{
+ mpfr_t x,y,z,x2;
+ int r;
+ int i, inexact1, inexact2;
+
+ mpfr_inits2 (p, x, y, z, x2, (mpfr_ptr) 0);
+
+ for (i = 0 ; i < 500 ; i++)
+ {
+ mpfr_urandomb (y, RANDS);
+ mpfr_urandomb (z, RANDS);
+ if (MPFR_IS_PURE_FP(y) && MPFR_IS_PURE_FP(z))
+ for(r = 0 ; r < GMP_RND_MAX ; r++)
+ {
+ inexact1 = mpfr_sub1(x2, y, z, (mp_rnd_t) r);
+ inexact2 = mpfr_sub1sp(x, y, z, (mp_rnd_t) r);
+ if (mpfr_cmp(x, x2))
+ STD_ERROR;
+ if (inexact1 != inexact2)
+ STD_ERROR2;
+ }
+ }
+
+ mpfr_clears (x, y, z, x2, (mpfr_ptr) 0);
+}
+
+static void
+check_special (void)
+{
+ mpfr_t x,y,z,x2;
+ int r;
+ mpfr_prec_t p;
+ int i = -1, inexact1, inexact2;
+ mp_exp_t es;
+
+ mpfr_inits (x, y, z, x2, (mpfr_ptr) 0);
+
+ for (r = 0 ; r < GMP_RND_MAX ; r++)
+ {
+ p = 53;
+ mpfr_set_prec(x, 53);
+ mpfr_set_prec(x2, 53);
+ mpfr_set_prec(y, 53);
+ mpfr_set_prec(z, 53);
+
+ mpfr_set_str_binary (y,
+ "0.10110111101101110010010010011011000001101101011011001E31");
+
+ mpfr_sub1sp (x, y, y, (mp_rnd_t) r);
+ if (mpfr_cmp_ui(x, 0))
+ {
+ printf("Error for x-x with p=%lu. Expected 0. Got:", p);
+ mpfr_print_binary(x);
+ exit(1);
+ }
+
+ mpfr_set(z, y, (mp_rnd_t) r);
+ mpfr_sub1sp(x, y, z, (mp_rnd_t) r);
+ if (mpfr_cmp_ui(x, 0))
+ {
+ printf("Error for x-y with y=x and p=%lu. Expected 0. Got:", p);
+ mpfr_print_binary(x);
+ exit(1);
+ }
+ /* diff = 0 */
+ mpfr_set_str_binary (y,
+ "0.10110111101101110010010010011011001001101101011011001E31");
+ inexact1 = mpfr_sub1(x2, y, z, (mp_rnd_t) r);
+ inexact2 = mpfr_sub1sp(x, y, z, (mp_rnd_t) r);
+ if (mpfr_cmp(x, x2))
+ STD_ERROR;
+ if (inexact1 != inexact2)
+ STD_ERROR2;
+
+ /* Diff = 1 */
+ mpfr_set_str_binary (y,
+ "0.10110111101101110010010010011011000001101101011011001E30");
+ inexact1 = mpfr_sub1(x2, y, z, (mp_rnd_t) r);
+ inexact2 = mpfr_sub1sp(x, y, z, (mp_rnd_t) r);
+ if (mpfr_cmp(x, x2))
+ STD_ERROR;
+ if (inexact1 != inexact2)
+ STD_ERROR2;
+
+ /* Diff = 2 */
+ mpfr_set_str_binary (y,
+ "0.10110111101101110010010010011011000101101101011011001E32");
+ inexact1 = mpfr_sub1(x2, y, z, (mp_rnd_t) r);
+ inexact2 = mpfr_sub1sp(x, y, z, (mp_rnd_t) r);
+ if (mpfr_cmp(x, x2))
+ STD_ERROR;
+ if (inexact1 != inexact2)
+ STD_ERROR2;
+
+ /* Diff = 32 */
+ mpfr_set_str_binary (y,
+ "0.10110111101101110010010010011011000001101101011011001E63");
+ inexact1 = mpfr_sub1(x2, y, z, (mp_rnd_t) r);
+ inexact2 = mpfr_sub1sp(x, y, z, (mp_rnd_t) r);
+ if (mpfr_cmp(x, x2))
+ STD_ERROR;
+ if (inexact1 != inexact2)
+ STD_ERROR2;
+
+ /* Diff = 52 */
+ mpfr_set_str_binary (y,
+ "0.10110111101101110010010010011011010001101101011011001E83");
+ inexact1 = mpfr_sub1(x2, y, z, (mp_rnd_t) r);
+ inexact2 = mpfr_sub1sp(x, y, z, (mp_rnd_t) r);
+ if (mpfr_cmp(x, x2))
+ STD_ERROR;
+ if (inexact1 != inexact2)
+ STD_ERROR2;
+
+ /* Diff = 53 */
+ mpfr_set_str_binary (y,
+ "0.10110111101101110010010010011111000001101101011011001E31");
+ inexact1 = mpfr_sub1(x2, y, z, (mp_rnd_t) r);
+ inexact2 = mpfr_sub1sp(x, y, z, (mp_rnd_t) r);
+ if (mpfr_cmp(x, x2))
+ STD_ERROR;
+ if (inexact1 != inexact2)
+ STD_ERROR2;
+
+ /* Diff > 200 */
+ mpfr_set_str_binary (y,
+ "0.10110111101101110010010010011011000001101101011011001E331");
+ inexact1 = mpfr_sub1(x2, y, z, (mp_rnd_t) r);
+ inexact2 = mpfr_sub1sp(x, y, z, (mp_rnd_t) r);
+ if (mpfr_cmp(x, x2))
+ STD_ERROR;
+ if (inexact1 != inexact2)
+ STD_ERROR2;
+
+ mpfr_set_str_binary (y,
+ "0.10000000000000000000000000000000000000000000000000000E31");
+ mpfr_set_str_binary (z,
+ "0.11111111111111111111111111111111111111111111111111111E30");
+ inexact1 = mpfr_sub1(x2, y, z, (mp_rnd_t) r);
+ inexact2 = mpfr_sub1sp(x, y, z, (mp_rnd_t) r);
+ if (mpfr_cmp(x, x2))
+ STD_ERROR;
+ if (inexact1 != inexact2)
+ STD_ERROR2;
+
+ mpfr_set_str_binary (y,
+ "0.10000000000000000000000000000000000000000000000000000E31");
+ mpfr_set_str_binary (z,
+ "0.11111111111111111111111111111111111111111111111111111E29");
+ inexact1 = mpfr_sub1(x2, y, z, (mp_rnd_t) r);
+ inexact2 = mpfr_sub1sp(x, y, z, (mp_rnd_t) r);
+ if (mpfr_cmp(x, x2))
+ STD_ERROR;
+ if (inexact1 != inexact2)
+ STD_ERROR2;
+
+ mpfr_set_str_binary (y,
+ "0.10000000000000000000000000000000000000000000000000000E52");
+ mpfr_set_str_binary (z,
+ "0.10000000000010000000000000000000000000000000000000000E00");
+ inexact1 = mpfr_sub1(x2, y, z, (mp_rnd_t) r);
+ inexact2 = mpfr_sub1sp(x, y, z, (mp_rnd_t) r);
+ if (mpfr_cmp(x, x2))
+ STD_ERROR;
+ if (inexact1 != inexact2)
+ STD_ERROR2;
+
+ mpfr_set_str_binary (y,
+ "0.11100000000000000000000000000000000000000000000000000E53");
+ mpfr_set_str_binary (z,
+ "0.10000000000000000000000000000000000000000000000000000E00");
+ inexact1 = mpfr_sub1(x2, y, z, (mp_rnd_t) r);
+ inexact2 = mpfr_sub1sp(z, y, z, (mp_rnd_t) r);
+ mpfr_set(x, z, (mp_rnd_t) r);
+ if (mpfr_cmp(x, x2))
+ STD_ERROR;
+ if (inexact1 != inexact2)
+ STD_ERROR2;
+
+ mpfr_set_str_binary (y,
+ "0.10000000000000000000000000000000000000000000000000000E53");
+ mpfr_set_str_binary (z,
+ "0.10100000000000000000000000000000000000000000000000000E00");
+ inexact1 = mpfr_sub1(x2, y, z, (mp_rnd_t) r);
+ inexact2 = mpfr_sub1sp(x, y, z, (mp_rnd_t) r);
+ if (mpfr_cmp(x, x2))
+ STD_ERROR;
+ if (inexact1 != inexact2)
+ STD_ERROR2;
+
+ mpfr_set_str_binary (y,
+ "0.10000000000000000000000000000000000000000000000000000E54");
+ mpfr_set_str_binary (z,
+ "0.10100000000000000000000000000000000000000000000000000E00");
+ inexact1 = mpfr_sub1(x2, y, z, (mp_rnd_t) r);
+ inexact2 = mpfr_sub1sp(x, y, z, (mp_rnd_t) r);
+ if (mpfr_cmp(x, x2))
+ STD_ERROR;
+ if (inexact1 != inexact2)
+ STD_ERROR2;
+
+ p = 63;
+ mpfr_set_prec(x, p);
+ mpfr_set_prec(x2, p);
+ mpfr_set_prec(y, p);
+ mpfr_set_prec(z, p);
+ mpfr_set_str_binary (y,
+ "0.100000000000000000000000000000000000000000000000000000000000000E62");
+ mpfr_set_str_binary (z,
+ "0.110000000000000000000000000000000000000000000000000000000000000E00");
+ inexact1 = mpfr_sub1(x2, y, z, (mp_rnd_t) r);
+ inexact2 = mpfr_sub1sp(x, y, z, (mp_rnd_t) r);
+ if (mpfr_cmp(x, x2))
+ STD_ERROR;
+ if (inexact1 != inexact2)
+ STD_ERROR2;
+
+ p = 64;
+ mpfr_set_prec(x, 64);
+ mpfr_set_prec(x2, 64);
+ mpfr_set_prec(y, 64);
+ mpfr_set_prec(z, 64);
+
+ mpfr_set_str_binary (y,
+ "0.1100000000000000000000000000000000000000000000000000000000000000E31");
+ mpfr_set_str_binary (z,
+ "0.1111111111111111111111111110000000000000000000000000011111111111E29");
+ inexact1 = mpfr_sub1(x2, y, z, (mp_rnd_t) r);
+ inexact2 = mpfr_sub1sp(x, y, z, (mp_rnd_t) r);
+ if (mpfr_cmp(x, x2))
+ STD_ERROR;
+ if (inexact1 != inexact2)
+ STD_ERROR2;
+
+ mpfr_set_str_binary (y,
+ "0.1000000000000000000000000000000000000000000000000000000000000000E63");
+ mpfr_set_str_binary (z,
+ "0.1011000000000000000000000000000000000000000000000000000000000000E00");
+ inexact1 = mpfr_sub1(x2, y, z, (mp_rnd_t) r);
+ inexact2 = mpfr_sub1sp(x, y, z, (mp_rnd_t) r);
+ if (mpfr_cmp(x, x2))
+ STD_ERROR;
+ if (inexact1 != inexact2)
+ STD_ERROR2;
+
+ mpfr_set_str_binary (y,
+ "0.1000000000000000000000000000000000000000000000000000000000000000E63");
+ mpfr_set_str_binary (z,
+ "0.1110000000000000000000000000000000000000000000000000000000000000E00");
+ inexact1 = mpfr_sub1(x2, y, z, (mp_rnd_t) r);
+ inexact2 = mpfr_sub1sp(x, y, z, (mp_rnd_t) r);
+ if (mpfr_cmp(x, x2))
+ STD_ERROR;
+ if (inexact1 != inexact2)
+ STD_ERROR2;
+
+ mpfr_set_str_binary (y,
+ "0.10000000000000000000000000000000000000000000000000000000000000E63");
+ mpfr_set_str_binary (z,
+ "0.10000000000000000000000000000000000000000000000000000000000000E00");
+ inexact1 = mpfr_sub1(x2, y, z, (mp_rnd_t) r);
+ inexact2 = mpfr_sub1sp(x, y, z, (mp_rnd_t) r);
+ if (mpfr_cmp(x, x2))
+ STD_ERROR;
+ if (inexact1 != inexact2)
+ STD_ERROR2;
+
+ mpfr_set_str_binary (y,
+ "0.1000000000000000000000000000000000000000000000000000000000000000E64");
+ mpfr_set_str_binary (z,
+ "0.1010000000000000000000000000000000000000000000000000000000000000E00");
+ inexact1 = mpfr_sub1(x2, y, z, (mp_rnd_t) r);
+ inexact2 = mpfr_sub1sp(x, y, z, (mp_rnd_t) r);
+ if (mpfr_cmp(x, x2))
+ STD_ERROR;
+ if (inexact1 != inexact2)
+ STD_ERROR2;
+
+ MPFR_SET_NAN(x);
+ MPFR_SET_NAN(x2);
+ mpfr_set_str_binary (y,
+ "0.1000000000000000000000000000000000000000000000000000000000000000"
+ "E-1073741823");
+ mpfr_set_str_binary (z,
+ "0.1100000000000000000000000000000000000000000000000000000000000000"
+ "E-1073741823");
+ inexact1 = mpfr_sub1(x2, y, z, (mp_rnd_t) r);
+ inexact2 = mpfr_sub1sp(x, y, z, (mp_rnd_t) r);
+ if (mpfr_cmp(x, x2))
+ STD_ERROR;
+ if (inexact1 != inexact2)
+ STD_ERROR2;
+
+ p = 9;
+ mpfr_set_prec(x, p);
+ mpfr_set_prec(x2, p);
+ mpfr_set_prec(y, p);
+ mpfr_set_prec(z, p);
+
+ mpfr_set_str_binary (y, "0.100000000E1");
+ mpfr_set_str_binary (z, "0.100000000E-8");
+ inexact1 = mpfr_sub1(x2, y, z, (mp_rnd_t) r);
+ inexact2 = mpfr_sub1sp(x, y, z, (mp_rnd_t) r);
+ if (mpfr_cmp(x, x2))
+ STD_ERROR;
+ if (inexact1 != inexact2)
+ STD_ERROR2;
+
+ p = 34;
+ mpfr_set_prec(x, p);
+ mpfr_set_prec(x2, p);
+ mpfr_set_prec(y, p);
+ mpfr_set_prec(z, p);
+
+ mpfr_set_str_binary (y, "-0.1011110000111100010111011100110100E-18");
+ mpfr_set_str_binary (z, "0.1000101010110011010101011110000000E-14");
+ inexact1 = mpfr_sub1(x2, y, z, (mp_rnd_t) r);
+ inexact2 = mpfr_sub1sp(x, y, z, (mp_rnd_t) r);
+ if (mpfr_cmp(x, x2))
+ STD_ERROR;
+ if (inexact1 != inexact2)
+ STD_ERROR2;
+
+ p = 124;
+ mpfr_set_prec(x, p);
+ mpfr_set_prec(x2, p);
+ mpfr_set_prec(y, p);
+ mpfr_set_prec(z, p);
+
+ mpfr_set_str_binary (y,
+"0.1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000E1");
+ mpfr_set_str_binary (z,
+"0.1011111000100111000011001000011101010101101100101010101001000001110100001101110110001110111010000011101001100010111110001100E-31");
+ inexact1 = mpfr_sub1(x2, y, z, (mp_rnd_t) r);
+ inexact2 = mpfr_sub1sp(x, y, z, (mp_rnd_t) r);
+ if (mpfr_cmp(x, x2))
+ STD_ERROR;
+ if (inexact1 != inexact2)
+ STD_ERROR2;
+
+ p = 288;
+ mpfr_set_prec(x, p);
+ mpfr_set_prec(x2, p);
+ mpfr_set_prec(y, p);
+ mpfr_set_prec(z, p);
+
+ mpfr_set_str_binary (y,
+ "0.111000110011000001000111101010111011110011101001101111111110000011100101000001001010110010101010011001010100000001110011110001010101101010001011101110100100001011110100110000101101100011010001001011011010101010000010001101001000110010010111111011110001111101001000101101001100101100101000E80");
+ mpfr_set_str_binary (z,
+ "-0.100001111111101001011010001100110010100111001110000110011101001011010100001000000100111011010110110010000000000010101101011000010000110001110010100001100101011100100100001011000100011110000001010101000100011101001000010111100000111000111011001000100100011000100000010010111000000100100111E-258");
+ inexact1 = mpfr_sub1(x2, y, z, (mp_rnd_t) r);
+ inexact2 = mpfr_sub1sp(x, y, z, (mp_rnd_t) r);
+ if (mpfr_cmp(x, x2))
+ STD_ERROR;
+ if (inexact1 != inexact2)
+ STD_ERROR2;
+
+ p = 85;
+ mpfr_set_prec(x, p);
+ mpfr_set_prec(x2, p);
+ mpfr_set_prec(y, p);
+ mpfr_set_prec(z, p);
+
+ mpfr_set_str_binary (y,
+"0.1111101110100110110110100010101011101001100010100011110110110010010011101100101111100E-4");
+ mpfr_set_str_binary (z,
+"0.1111101110100110110110100010101001001000011000111000011101100101110100001110101010110E-4");
+ inexact1 = mpfr_sub1(x2, y, z, (mp_rnd_t) r);
+ inexact2 = mpfr_sub1sp(x, y, z, (mp_rnd_t) r);
+ if (mpfr_cmp(x, x2))
+ STD_ERROR;
+ if (inexact1 != inexact2)
+ STD_ERROR2;
+
+ p = 64;
+ mpfr_set_prec(x, p); mpfr_set_prec(x2, p);
+ mpfr_set_prec(y, p); mpfr_set_prec(z, p);
+
+ mpfr_set_str_binary (y,
+ "0.11000000000000000000000000000000"
+ "00000000000000000000000000000000E1");
+ mpfr_set_str_binary (z,
+ "0.10000000000000000000000000000000"
+ "00000000000000000000000000000001E0");
+ inexact1 = mpfr_sub1(x2, y, z, (mp_rnd_t) r);
+ inexact2 = mpfr_sub1sp(x, y, z, (mp_rnd_t) r);
+ if (mpfr_cmp(x, x2))
+ STD_ERROR;
+ if (inexact1 != inexact2)
+ STD_ERROR2;
+
+ mpfr_set_str_binary (y,
+ "0.11000000000000000000000000000000"
+ "000000000000000000000000000001E1");
+ mpfr_set_str_binary (z,
+ "0.10000000000000000000000000000000"
+ "00000000000000000000000000000001E0");
+ inexact1 = mpfr_sub1(x2, y, z, (mp_rnd_t) r);
+ inexact2 = mpfr_sub1sp(x, y, z, (mp_rnd_t) r);
+ if (mpfr_cmp(x, x2))
+ STD_ERROR;
+ if (inexact1 != inexact2)
+ STD_ERROR2;
+
+ es = mpfr_get_emin ();
+ set_emin (-1024);
+
+ mpfr_set_str_binary (y,
+ "0.10000000000000000000000000000000"
+ "000000000000000000000000000000E-1023");
+ mpfr_set_str_binary (z,
+ "0.10000000000000000000000000000000"
+ "00000000000000000000000000000001E-1023");
+ inexact1 = mpfr_sub1(x2, y, z, (mp_rnd_t) r);
+ inexact2 = mpfr_sub1sp(x, y, z, (mp_rnd_t) r);
+ if (mpfr_cmp(x, x2))
+ STD_ERROR;
+ if (inexact1 != inexact2)
+ STD_ERROR2;
+
+ mpfr_set_str_binary (y,
+ "0.10000000000000000000000000000000"
+ "000000000000000000000000000000E-1023");
+ mpfr_set_str_binary (z,
+ "0.1000000000000000000000000000000"
+ "000000000000000000000000000000E-1023");
+ inexact1 = mpfr_sub1(x2, y, z, (mp_rnd_t) r);
+ inexact2 = mpfr_sub1sp(x, y, z, (mp_rnd_t) r);
+ if (mpfr_cmp(x, x2))
+ STD_ERROR;
+ if (inexact1 != inexact2)
+ STD_ERROR2;
+
+ set_emin (es);
+ }
+
+ mpfr_clears (x, y, z, x2, (mpfr_ptr) 0);
+}
projects / msp430-gcc.git / blobdiff