| /* Test file for mpfr_eint. |
| |
| Copyright 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" |
| |
| #define TEST_FUNCTION mpfr_eint |
| #define TEST_RANDOM_POS 8 |
| #define TEST_RANDOM_EMAX 40 |
| #include "tgeneric.c" |
| |
| static void |
| check_specials (void) |
| { |
| mpfr_t x, y; |
| |
| mpfr_init2 (x, 123L); |
| mpfr_init2 (y, 123L); |
| |
| mpfr_set_nan (x); |
| mpfr_eint (y, x, GMP_RNDN); |
| if (! mpfr_nan_p (y)) |
| { |
| printf ("Error: eint(NaN) != NaN\n"); |
| exit (1); |
| } |
| |
| mpfr_set_inf (x, 1); |
| mpfr_eint (y, x, GMP_RNDN); |
| if (! (mpfr_inf_p (y) && mpfr_sgn (y) > 0)) |
| { |
| printf ("Error: eint(+Inf) != +Inf\n"); |
| exit (1); |
| } |
| |
| mpfr_set_inf (x, -1); |
| mpfr_eint (y, x, GMP_RNDN); |
| if (! mpfr_nan_p (y)) |
| { |
| printf ("Error: eint(-Inf) != NaN\n"); |
| exit (1); |
| } |
| |
| /* eint(+/-0) = -Inf */ |
| mpfr_set_ui (x, 0, GMP_RNDN); |
| mpfr_eint (y, x, GMP_RNDN); |
| if (! (mpfr_inf_p (y) && mpfr_sgn (y) < 0)) |
| { |
| printf ("Error: eint(+0) != -Inf\n"); |
| exit (1); |
| } |
| mpfr_neg (x, x, GMP_RNDN); |
| mpfr_eint (y, x, GMP_RNDN); |
| if (! (mpfr_inf_p (y) && mpfr_sgn (y) < 0)) |
| { |
| printf ("Error: eint(-0) != -Inf\n"); |
| exit (1); |
| } |
| |
| /* eint(x) = NaN for x < 0 */ |
| mpfr_set_si (x, -1, GMP_RNDN); |
| mpfr_eint (y, x, GMP_RNDN); |
| if (! mpfr_nan_p (y)) |
| { |
| printf ("Error: eint(-1) != NaN\n"); |
| exit (1); |
| } |
| |
| mpfr_set_prec (x, 17); |
| mpfr_set_prec (y, 17); |
| mpfr_set_str_binary (x, "1.0111110100100110e-2"); |
| mpfr_set_str_binary (y, "-1.0010101001110100e-10"); |
| mpfr_eint (x, x, GMP_RNDZ); |
| if (mpfr_cmp (x, y)) |
| { |
| printf ("Error for x=1.0111110100100110e-2, GMP_RNDZ\n"); |
| printf ("expected "); mpfr_dump (y); |
| printf ("got "); mpfr_dump (x); |
| exit (1); |
| } |
| |
| mpfr_set_prec (x, 53); |
| mpfr_set_prec (y, 53); |
| mpfr_set_str_binary (x, "0.10E4"); |
| mpfr_eint (x, x, GMP_RNDN); |
| mpfr_set_str (y, "440.37989953483827", 10, GMP_RNDN); |
| if (mpfr_cmp (x, y) != 0) |
| { |
| printf ("Error for x=0.10E4, GMP_RNDZ\n"); |
| printf ("expected "); mpfr_dump (y); |
| printf ("got "); mpfr_dump (x); |
| exit (1); |
| } |
| |
| mpfr_set_prec (x, 63); |
| mpfr_set_prec (y, 63); |
| mpfr_set_str_binary (x, "1.01111101011100111000011010001000101101011000011001111101011010e-2"); |
| mpfr_eint (x, x, GMP_RNDZ); |
| mpfr_set_str_binary (y, "1.11010110001101000001010010000100001111001000100100000001011100e-17"); |
| if (mpfr_cmp (x, y) != 0) |
| { |
| printf ("Error (1) for GMP_RNDZ\n"); |
| printf ("expected "); mpfr_dump (y); |
| printf ("got "); mpfr_dump (x); |
| exit (1); |
| } |
| |
| /* check large x */ |
| mpfr_set_prec (x, 53); |
| mpfr_set_prec (y, 53); |
| mpfr_set_str_binary (x, "1E6"); |
| mpfr_eint (x, x, GMP_RNDN); |
| mpfr_set_str_binary (y, "10100011110001101001110000110010111000100111010001E37"); |
| if (mpfr_cmp (x, y) != 0) |
| { |
| printf ("Error for x=2^6, GMP_RNDN\n"); |
| printf ("expected "); mpfr_dump (y); |
| printf ("got "); mpfr_dump (x); |
| exit (1); |
| } |
| mpfr_set_str_binary (x, "1E7"); |
| mpfr_eint (x, x, GMP_RNDN); |
| mpfr_set_str_binary (y, "11001100100011110000101001011010110111111011110011E128"); |
| if (mpfr_cmp (x, y) != 0) |
| { |
| printf ("Error for x=2^7, GMP_RNDN\n"); |
| printf ("expected "); mpfr_dump (y); |
| printf ("got "); mpfr_dump (x); |
| exit (1); |
| } |
| mpfr_set_str_binary (x, "1E8"); |
| mpfr_eint (x, x, GMP_RNDN); |
| mpfr_set_str_binary (y, "1010000110000101111111011011000101001000101011101001E310"); |
| if (mpfr_cmp (x, y) != 0) |
| { |
| printf ("Error for x=2^8, GMP_RNDN\n"); |
| printf ("expected "); mpfr_dump (y); |
| printf ("got "); mpfr_dump (x); |
| exit (1); |
| } |
| mpfr_set_str_binary (x, "1E9"); |
| mpfr_eint (x, x, GMP_RNDN); |
| mpfr_set_str_binary (y, "11001010101000001010101101110000010110011101110010101E677"); |
| if (mpfr_cmp (x, y) != 0) |
| { |
| printf ("Error for x=2^9, GMP_RNDN\n"); |
| printf ("expected "); mpfr_dump (y); |
| printf ("got "); mpfr_dump (x); |
| exit (1); |
| } |
| mpfr_set_str_binary (x, "1E10"); |
| mpfr_eint (x, x, GMP_RNDN); |
| mpfr_set_str_binary (y, "10011111111010010110110101101000101100101010101101101E1415"); |
| if (mpfr_cmp (x, y) != 0) |
| { |
| printf ("Error for x=2^10, GMP_RNDN\n"); |
| printf ("expected "); mpfr_dump (y); |
| printf ("got "); mpfr_dump (x); |
| exit (1); |
| } |
| |
| mpfr_clear (x); |
| mpfr_clear (y); |
| } |
| |
| int |
| main (int argc, char *argv[]) |
| { |
| tests_start_mpfr (); |
| |
| if (argc != 1) /* teint x [prec] */ |
| { |
| mpfr_t x; |
| mp_prec_t p; |
| p = (argc < 3) ? 53 : atoi (argv[2]); |
| mpfr_init2 (x, p); |
| mpfr_set_str (x, argv[1], 10, GMP_RNDN); |
| printf ("eint("); |
| mpfr_out_str (stdout, 10, 0, x, GMP_RNDN); |
| printf (")="); |
| mpfr_eint (x, x, GMP_RNDN); |
| mpfr_out_str (stdout, 10, 0, x, GMP_RNDN); |
| printf ("\n"); |
| mpfr_clear (x); |
| } |
| else |
| { |
| check_specials (); |
| |
| test_generic (2, 100, 100); |
| } |
| |
| tests_end_mpfr (); |
| return 0; |
| } |