| /* Test file for mpfr_add_[q,z], mpfr_sub_[q,z], mpfr_div_[q,z], |
| mpfr_mul_[q,z], mpfr_cmp_[f,q,z] |
| |
| Copyright 2004-2016 Free Software Foundation, Inc. |
| Contributed by the AriC and Caramba 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 3 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.LESSER. If not, see |
| http://www.gnu.org/licenses/ or 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 CHECK_FOR(str, cond) \ |
| if ((cond) == 0) { \ |
| printf ("Special case error %s. Ternary value = %d, flags = %u\n", \ |
| str, res, __gmpfr_flags); \ |
| printf ("Got "); mpfr_dump (y); \ |
| printf ("X = "); mpfr_dump (x); \ |
| printf ("Q = "); mpz_dump (mpq_numref(q)); \ |
| printf (" /"); mpz_dump (mpq_denref(q)); \ |
| exit (1); \ |
| } |
| |
| #define CHECK_FORZ(str, cond) \ |
| if ((cond) == 0) { \ |
| printf ("Special case error %s. Ternary value = %d, flags = %u\n", \ |
| str, res, __gmpfr_flags); \ |
| printf ("Got "); mpfr_dump (y); \ |
| printf ("X = "); mpfr_dump (x); \ |
| printf ("Z = "); mpz_dump (z); \ |
| exit (1); \ |
| } |
| |
| static void |
| special (void) |
| { |
| mpfr_t x, y; |
| mpq_t q; |
| mpz_t z; |
| int res = 0; |
| |
| mpfr_init (x); |
| mpfr_init (y); |
| mpq_init (q); |
| mpz_init (z); |
| |
| /* cancellation in mpfr_add_q */ |
| mpfr_set_prec (x, 60); |
| mpfr_set_prec (y, 20); |
| mpz_set_str (mpq_numref (q), "-187207494", 10); |
| mpz_set_str (mpq_denref (q), "5721", 10); |
| mpfr_set_str_binary (x, "11111111101001011011100101100011011110010011100010000100001E-44"); |
| mpfr_add_q (y, x, q, MPFR_RNDN); |
| CHECK_FOR ("cancelation in add_q", mpfr_cmp_ui_2exp (y, 256783, -64) == 0); |
| |
| mpfr_set_prec (x, 19); |
| mpfr_set_str_binary (x, "0.1011110101110011100E0"); |
| mpz_set_str (mpq_numref (q), "187207494", 10); |
| mpz_set_str (mpq_denref (q), "5721", 10); |
| mpfr_set_prec (y, 29); |
| mpfr_add_q (y, x, q, MPFR_RNDD); |
| mpfr_set_prec (x, 29); |
| mpfr_set_str_binary (x, "11111111101001110011010001001E-14"); |
| CHECK_FOR ("cancelation in add_q", mpfr_cmp (x,y) == 0); |
| |
| /* Inf */ |
| mpfr_set_inf (x, 1); |
| mpz_set_str (mpq_numref (q), "395877315", 10); |
| mpz_set_str (mpq_denref (q), "3508975966", 10); |
| mpfr_set_prec (y, 118); |
| mpfr_add_q (y, x, q, MPFR_RNDU); |
| CHECK_FOR ("inf", mpfr_inf_p (y) && mpfr_sgn (y) > 0); |
| mpfr_sub_q (y, x, q, MPFR_RNDU); |
| CHECK_FOR ("inf", mpfr_inf_p (y) && mpfr_sgn (y) > 0); |
| |
| /* Nan */ |
| MPFR_SET_NAN (x); |
| mpfr_add_q (y, x, q, MPFR_RNDU); |
| CHECK_FOR ("nan", mpfr_nan_p (y)); |
| mpfr_sub_q (y, x, q, MPFR_RNDU); |
| CHECK_FOR ("nan", mpfr_nan_p (y)); |
| |
| /* Exact value */ |
| mpfr_set_prec (x, 60); |
| mpfr_set_prec (y, 60); |
| mpfr_set_str1 (x, "0.5"); |
| mpz_set_str (mpq_numref (q), "3", 10); |
| mpz_set_str (mpq_denref (q), "2", 10); |
| res = mpfr_add_q (y, x, q, MPFR_RNDU); |
| CHECK_FOR ("0.5+3/2", mpfr_cmp_ui(y, 2)==0 && res==0); |
| res = mpfr_sub_q (y, x, q, MPFR_RNDU); |
| CHECK_FOR ("0.5-3/2", mpfr_cmp_si(y, -1)==0 && res==0); |
| |
| /* Inf Rationnal */ |
| mpq_set_ui (q, 1, 0); |
| mpfr_set_str1 (x, "0.5"); |
| res = mpfr_add_q (y, x, q, MPFR_RNDN); |
| CHECK_FOR ("0.5+1/0", mpfr_inf_p (y) && MPFR_SIGN (y) > 0 && res == 0); |
| res = mpfr_sub_q (y, x, q, MPFR_RNDN); |
| CHECK_FOR ("0.5-1/0", mpfr_inf_p (y) && MPFR_SIGN (y) < 0 && res == 0); |
| mpq_set_si (q, -1, 0); |
| res = mpfr_add_q (y, x, q, MPFR_RNDN); |
| CHECK_FOR ("0.5+ -1/0", mpfr_inf_p (y) && MPFR_SIGN (y) < 0 && res == 0); |
| res = mpfr_sub_q (y, x, q, MPFR_RNDN); |
| CHECK_FOR ("0.5- -1/0", mpfr_inf_p (y) && MPFR_SIGN (y) > 0 && res == 0); |
| res = mpfr_div_q (y, x, q, MPFR_RNDN); |
| CHECK_FOR ("0.5 / (-1/0)", mpfr_zero_p (y) && MPFR_SIGN (y) < 0 && res == 0); |
| mpq_set_ui (q, 1, 0); |
| mpfr_set_inf (x, 1); |
| res = mpfr_add_q (y, x, q, MPFR_RNDN); |
| CHECK_FOR ("+Inf + +Inf", mpfr_inf_p (y) && MPFR_SIGN (y) > 0 && res == 0); |
| res = mpfr_sub_q (y, x, q, MPFR_RNDN); |
| CHECK_FOR ("+Inf - +Inf", MPFR_IS_NAN (y) && res == 0); |
| mpfr_set_inf (x, -1); |
| res = mpfr_add_q (y, x, q, MPFR_RNDN); |
| CHECK_FOR ("-Inf + +Inf", MPFR_IS_NAN (y) && res == 0); |
| res = mpfr_sub_q (y, x, q, MPFR_RNDN); |
| CHECK_FOR ("-Inf - +Inf", mpfr_inf_p (y) && MPFR_SIGN (y) < 0 && res == 0); |
| mpq_set_si (q, -1, 0); |
| mpfr_set_inf (x, 1); |
| res = mpfr_add_q (y, x, q, MPFR_RNDN); |
| CHECK_FOR ("+Inf + -Inf", MPFR_IS_NAN (y) && res == 0); |
| res = mpfr_sub_q (y, x, q, MPFR_RNDN); |
| CHECK_FOR ("+Inf - -Inf", mpfr_inf_p (y) && MPFR_SIGN (y) > 0 && res == 0); |
| mpfr_set_inf (x, -1); |
| res = mpfr_add_q (y, x, q, MPFR_RNDN); |
| CHECK_FOR ("-Inf + -Inf", mpfr_inf_p (y) && MPFR_SIGN (y) < 0 && res == 0); |
| res = mpfr_sub_q (y, x, q, MPFR_RNDN); |
| CHECK_FOR ("-Inf - -Inf", MPFR_IS_NAN (y) && res == 0); |
| |
| /* 0 */ |
| mpq_set_ui (q, 0, 1); |
| mpfr_set_ui (x, 42, MPFR_RNDN); |
| res = mpfr_add_q (y, x, q, MPFR_RNDN); |
| CHECK_FOR ("42+0/1", mpfr_cmp_ui (y, 42) == 0 && res == 0); |
| res = mpfr_sub_q (y, x, q, MPFR_RNDN); |
| CHECK_FOR ("42-0/1", mpfr_cmp_ui (y, 42) == 0 && res == 0); |
| res = mpfr_mul_q (y, x, q, MPFR_RNDN); |
| CHECK_FOR ("42*0/1", mpfr_zero_p (y) && MPFR_SIGN (y) > 0 && res == 0); |
| mpfr_clear_flags (); |
| res = mpfr_div_q (y, x, q, MPFR_RNDN); |
| CHECK_FOR ("42/(0/1)", mpfr_inf_p (y) && MPFR_SIGN (y) > 0 && res == 0 |
| && mpfr_divby0_p ()); |
| mpz_set_ui (z, 0); |
| mpfr_clear_flags (); |
| res = mpfr_div_z (y, x, z, MPFR_RNDN); |
| CHECK_FORZ ("42/0", mpfr_inf_p (y) && MPFR_SIGN (y) > 0 && res == 0 |
| && mpfr_divby0_p ()); |
| |
| mpz_clear (z); |
| mpq_clear (q); |
| mpfr_clear (x); |
| mpfr_clear (y); |
| } |
| |
| static void |
| check_for_zero (void) |
| { |
| /* Check that 0 is unsigned! */ |
| mpq_t q; |
| mpz_t z; |
| mpfr_t x; |
| int r; |
| mpfr_sign_t i; |
| |
| mpfr_init (x); |
| mpz_init (z); |
| mpq_init (q); |
| |
| mpz_set_ui (z, 0); |
| mpq_set_ui (q, 0, 1); |
| |
| MPFR_SET_ZERO (x); |
| RND_LOOP (r) |
| { |
| for (i = MPFR_SIGN_NEG ; i <= MPFR_SIGN_POS ; |
| i+=MPFR_SIGN_POS-MPFR_SIGN_NEG) |
| { |
| MPFR_SET_SIGN(x, i); |
| mpfr_add_z (x, x, z, (mpfr_rnd_t) r); |
| if (!MPFR_IS_ZERO(x) || MPFR_SIGN(x)!=i) |
| { |
| printf("GMP Zero errors for add_z & rnd=%s & s=%d\n", |
| mpfr_print_rnd_mode ((mpfr_rnd_t) r), i); |
| mpfr_dump (x); |
| exit (1); |
| } |
| mpfr_sub_z (x, x, z, (mpfr_rnd_t) r); |
| if (!MPFR_IS_ZERO(x) || MPFR_SIGN(x)!=i) |
| { |
| printf("GMP Zero errors for sub_z & rnd=%s & s=%d\n", |
| mpfr_print_rnd_mode ((mpfr_rnd_t) r), i); |
| mpfr_dump (x); |
| exit (1); |
| } |
| mpfr_mul_z (x, x, z, (mpfr_rnd_t) r); |
| if (!MPFR_IS_ZERO(x) || MPFR_SIGN(x)!=i) |
| { |
| printf("GMP Zero errors for mul_z & rnd=%s & s=%d\n", |
| mpfr_print_rnd_mode ((mpfr_rnd_t) r), i); |
| mpfr_dump (x); |
| exit (1); |
| } |
| mpfr_add_q (x, x, q, (mpfr_rnd_t) r); |
| if (!MPFR_IS_ZERO(x) || MPFR_SIGN(x)!=i) |
| { |
| printf("GMP Zero errors for add_q & rnd=%s & s=%d\n", |
| mpfr_print_rnd_mode ((mpfr_rnd_t) r), i); |
| mpfr_dump (x); |
| exit (1); |
| } |
| mpfr_sub_q (x, x, q, (mpfr_rnd_t) r); |
| if (!MPFR_IS_ZERO(x) || MPFR_SIGN(x)!=i) |
| { |
| printf("GMP Zero errors for sub_q & rnd=%s & s=%d\n", |
| mpfr_print_rnd_mode ((mpfr_rnd_t) r), i); |
| mpfr_dump (x); |
| exit (1); |
| } |
| } |
| } |
| |
| mpq_clear (q); |
| mpz_clear (z); |
| mpfr_clear (x); |
| } |
| |
| static void |
| test_cmp_z (mpfr_prec_t pmin, mpfr_prec_t pmax, int nmax) |
| { |
| mpfr_t x, z; |
| mpz_t y; |
| mpfr_prec_t p; |
| int res1, res2; |
| int n; |
| |
| mpfr_init (x); |
| mpfr_init2 (z, MPFR_PREC_MIN); |
| mpz_init (y); |
| |
| /* check the erange flag when x is NaN */ |
| mpfr_set_nan (x); |
| mpz_set_ui (y, 17); |
| mpfr_clear_erangeflag (); |
| res1 = mpfr_cmp_z (x, y); |
| if (res1 != 0 || mpfr_erangeflag_p () == 0) |
| { |
| printf ("Error for mpfr_cmp_z (NaN, 17)\n"); |
| printf ("Return value: expected 0, got %d\n", res1); |
| printf ("Erange flag: expected set, got %d\n", mpfr_erangeflag_p ()); |
| exit (1); |
| } |
| |
| for(p=pmin ; p < pmax ; p++) |
| { |
| mpfr_set_prec (x, p); |
| for ( n = 0; n < nmax ; n++) |
| { |
| mpfr_urandomb (x, RANDS); |
| mpz_urandomb (y, RANDS, 1024); |
| if (!MPFR_IS_SINGULAR (x)) |
| { |
| mpfr_sub_z (z, x, y, MPFR_RNDN); |
| res1 = mpfr_sgn (z); |
| res2 = mpfr_cmp_z (x, y); |
| if (res1 != res2) |
| { |
| printf("Error for mpfr_cmp_z: res=%d sub_z gives %d\n", |
| res2, res1); |
| exit (1); |
| } |
| } |
| } |
| } |
| mpz_clear (y); |
| mpfr_clear (x); |
| mpfr_clear (z); |
| } |
| |
| static void |
| test_cmp_q (mpfr_prec_t pmin, mpfr_prec_t pmax, int nmax) |
| { |
| mpfr_t x, z; |
| mpq_t y; |
| mpfr_prec_t p; |
| int res1, res2; |
| int n; |
| |
| mpfr_init (x); |
| mpfr_init2 (z, MPFR_PREC_MIN); |
| mpq_init (y); |
| |
| /* check the erange flag when x is NaN */ |
| mpfr_set_nan (x); |
| mpq_set_ui (y, 17, 1); |
| mpfr_clear_erangeflag (); |
| res1 = mpfr_cmp_q (x, y); |
| if (res1 != 0 || mpfr_erangeflag_p () == 0) |
| { |
| printf ("Error for mpfr_cmp_q (NaN, 17)\n"); |
| printf ("Return value: expected 0, got %d\n", res1); |
| printf ("Erange flag: expected set, got %d\n", mpfr_erangeflag_p ()); |
| exit (1); |
| } |
| |
| for(p=pmin ; p < pmax ; p++) |
| { |
| mpfr_set_prec (x, p); |
| for (n = 0 ; n < nmax ; n++) |
| { |
| mpfr_urandomb (x, RANDS); |
| mpq_set_ui (y, randlimb (), randlimb() ); |
| if (!MPFR_IS_SINGULAR (x)) |
| { |
| mpfr_sub_q (z, x, y, MPFR_RNDN); |
| res1 = mpfr_sgn (z); |
| res2 = mpfr_cmp_q (x, y); |
| if (res1 != res2) |
| { |
| printf("Error for mpfr_cmp_q: res=%d sub_z gives %d\n", |
| res2, res1); |
| exit (1); |
| } |
| } |
| } |
| } |
| mpq_clear (y); |
| mpfr_clear (x); |
| mpfr_clear (z); |
| } |
| |
| static void |
| test_cmp_f (mpfr_prec_t pmin, mpfr_prec_t pmax, int nmax) |
| { |
| mpfr_t x, z; |
| mpf_t y; |
| mpfr_prec_t p; |
| int res1, res2; |
| int n; |
| |
| mpfr_init (x); |
| mpfr_init2 (z, pmax+GMP_NUMB_BITS); |
| mpf_init2 (y, MPFR_PREC_MIN); |
| |
| /* check the erange flag when x is NaN */ |
| mpfr_set_nan (x); |
| mpf_set_ui (y, 17); |
| mpfr_clear_erangeflag (); |
| res1 = mpfr_cmp_f (x, y); |
| if (res1 != 0 || mpfr_erangeflag_p () == 0) |
| { |
| printf ("Error for mpfr_cmp_f (NaN, 17)\n"); |
| printf ("Return value: expected 0, got %d\n", res1); |
| printf ("Erange flag: expected set, got %d\n", mpfr_erangeflag_p ()); |
| exit (1); |
| } |
| |
| for(p=pmin ; p < pmax ; p+=3) |
| { |
| mpfr_set_prec (x, p); |
| mpf_set_prec (y, p); |
| for ( n = 0; n < nmax ; n++) |
| { |
| mpfr_urandomb (x, RANDS); |
| mpf_urandomb (y, RANDS, p); |
| if (!MPFR_IS_SINGULAR (x)) |
| { |
| mpfr_set_f (z, y, MPFR_RNDN); |
| mpfr_sub (z, x, z, MPFR_RNDN); |
| res1 = mpfr_sgn (z); |
| res2 = mpfr_cmp_f (x, y); |
| if (res1 != res2) |
| { |
| printf("Error for mpfr_cmp_f: res=%d sub gives %d\n", |
| res2, res1); |
| exit (1); |
| } |
| } |
| } |
| } |
| mpf_clear (y); |
| mpfr_clear (x); |
| mpfr_clear (z); |
| } |
| |
| static void |
| test_specialz (int (*mpfr_func)(mpfr_ptr, mpfr_srcptr, mpz_srcptr, mpfr_rnd_t), |
| void (*mpz_func)(mpz_ptr, mpz_srcptr, mpz_srcptr), |
| const char *op) |
| { |
| mpfr_t x1, x2; |
| mpz_t z1, z2; |
| int res; |
| |
| mpfr_inits2 (128, x1, x2, (mpfr_ptr) 0); |
| mpz_init (z1); mpz_init(z2); |
| mpz_fac_ui (z1, 19); /* 19!+1 fits perfectly in a 128 bits mantissa */ |
| mpz_add_ui (z1, z1, 1); |
| mpz_fac_ui (z2, 20); /* 20!+1 fits perfectly in a 128 bits mantissa */ |
| mpz_add_ui (z2, z2, 1); |
| |
| res = mpfr_set_z(x1, z1, MPFR_RNDN); |
| if (res) |
| { |
| printf("Specialz %s: set_z1 error\n", op); |
| exit(1); |
| } |
| mpfr_set_z (x2, z2, MPFR_RNDN); |
| if (res) |
| { |
| printf("Specialz %s: set_z2 error\n", op); |
| exit(1); |
| } |
| |
| /* (19!+1) * (20!+1) fits in a 128 bits number */ |
| res = mpfr_func(x1, x1, z2, MPFR_RNDN); |
| if (res) |
| { |
| printf("Specialz %s: wrong inexact flag.\n", op); |
| exit(1); |
| } |
| mpz_func(z1, z1, z2); |
| res = mpfr_set_z (x2, z1, MPFR_RNDN); |
| if (res) |
| { |
| printf("Specialz %s: set_z2 error\n", op); |
| exit(1); |
| } |
| if (mpfr_cmp(x1, x2)) |
| { |
| printf("Specialz %s: results differ.\nx1=", op); |
| mpfr_print_binary(x1); |
| printf("\nx2="); |
| mpfr_print_binary(x2); |
| printf ("\nZ2="); |
| mpz_out_str (stdout, 2, z1); |
| putchar('\n'); |
| exit(1); |
| } |
| |
| mpz_set_ui (z1, 1); |
| mpz_set_ui (z2, 0); |
| mpfr_set_ui (x1, 1, MPFR_RNDN); |
| mpz_func (z1, z1, z2); |
| res = mpfr_func(x1, x1, z2, MPFR_RNDN); |
| mpfr_set_z (x2, z1, MPFR_RNDN); |
| if (mpfr_cmp(x1, x2)) |
| { |
| printf("Specialz %s: results differ(2).\nx1=", op); |
| mpfr_print_binary(x1); |
| printf("\nx2="); |
| mpfr_print_binary(x2); |
| putchar('\n'); |
| exit(1); |
| } |
| |
| mpz_clear (z1); mpz_clear(z2); |
| mpfr_clears (x1, x2, (mpfr_ptr) 0); |
| } |
| |
| static void |
| test_special2z (int (*mpfr_func)(mpfr_ptr, mpz_srcptr, mpfr_srcptr, mpfr_rnd_t), |
| void (*mpz_func)(mpz_ptr, mpz_srcptr, mpz_srcptr), |
| const char *op) |
| { |
| mpfr_t x1, x2; |
| mpz_t z1, z2; |
| int res; |
| |
| mpfr_inits2 (128, x1, x2, (mpfr_ptr) 0); |
| mpz_init (z1); mpz_init(z2); |
| mpz_fac_ui (z1, 19); /* 19!+1 fits perfectly in a 128 bits mantissa */ |
| mpz_add_ui (z1, z1, 1); |
| mpz_fac_ui (z2, 20); /* 20!+1 fits perfectly in a 128 bits mantissa */ |
| mpz_add_ui (z2, z2, 1); |
| |
| res = mpfr_set_z(x1, z1, MPFR_RNDN); |
| if (res) |
| { |
| printf("Special2z %s: set_z1 error\n", op); |
| exit(1); |
| } |
| mpfr_set_z (x2, z2, MPFR_RNDN); |
| if (res) |
| { |
| printf("Special2z %s: set_z2 error\n", op); |
| exit(1); |
| } |
| |
| /* (19!+1) * (20!+1) fits in a 128 bits number */ |
| res = mpfr_func(x1, z1, x2, MPFR_RNDN); |
| if (res) |
| { |
| printf("Special2z %s: wrong inexact flag.\n", op); |
| exit(1); |
| } |
| mpz_func(z1, z1, z2); |
| res = mpfr_set_z (x2, z1, MPFR_RNDN); |
| if (res) |
| { |
| printf("Special2z %s: set_z2 error\n", op); |
| exit(1); |
| } |
| if (mpfr_cmp(x1, x2)) |
| { |
| printf("Special2z %s: results differ.\nx1=", op); |
| mpfr_print_binary(x1); |
| printf("\nx2="); |
| mpfr_print_binary(x2); |
| printf ("\nZ2="); |
| mpz_out_str (stdout, 2, z1); |
| putchar('\n'); |
| exit(1); |
| } |
| |
| mpz_set_ui (z1, 0); |
| mpz_set_ui (z2, 1); |
| mpfr_set_ui (x2, 1, MPFR_RNDN); |
| res = mpfr_func(x1, z1, x2, MPFR_RNDN); |
| mpz_func (z1, z1, z2); |
| mpfr_set_z (x2, z1, MPFR_RNDN); |
| if (mpfr_cmp(x1, x2)) |
| { |
| printf("Special2z %s: results differ(2).\nx1=", op); |
| mpfr_print_binary(x1); |
| printf("\nx2="); |
| mpfr_print_binary(x2); |
| putchar('\n'); |
| exit(1); |
| } |
| |
| mpz_clear (z1); mpz_clear(z2); |
| mpfr_clears (x1, x2, (mpfr_ptr) 0); |
| } |
| |
| static void |
| test_genericz (mpfr_prec_t p0, mpfr_prec_t p1, unsigned int N, |
| int (*func)(mpfr_ptr, mpfr_srcptr, mpz_srcptr, mpfr_rnd_t), |
| const char *op) |
| { |
| mpfr_prec_t prec; |
| mpfr_t arg1, dst_big, dst_small, tmp; |
| mpz_t arg2; |
| mpfr_rnd_t rnd; |
| int inexact, compare, compare2; |
| unsigned int n; |
| |
| mpfr_inits (arg1, dst_big, dst_small, tmp, (mpfr_ptr) 0); |
| mpz_init (arg2); |
| |
| for (prec = p0; prec <= p1; prec++) |
| { |
| mpfr_set_prec (arg1, prec); |
| mpfr_set_prec (tmp, prec); |
| mpfr_set_prec (dst_small, prec); |
| |
| for (n=0; n<N; n++) |
| { |
| mpfr_urandomb (arg1, RANDS); |
| mpz_urandomb (arg2, RANDS, 1024); |
| rnd = RND_RAND (); |
| mpfr_set_prec (dst_big, 2*prec); |
| compare = func(dst_big, arg1, arg2, rnd); |
| if (mpfr_can_round (dst_big, 2*prec, rnd, rnd, prec)) |
| { |
| mpfr_set (tmp, dst_big, rnd); |
| inexact = func(dst_small, arg1, arg2, rnd); |
| if (mpfr_cmp (tmp, dst_small)) |
| { |
| printf ("Results differ for prec=%u rnd_mode=%s and %s_z:\n" |
| "arg1=", |
| (unsigned) prec, mpfr_print_rnd_mode (rnd), op); |
| mpfr_print_binary (arg1); |
| printf("\narg2="); |
| mpz_out_str (stdout, 10, arg2); |
| printf ("\ngot "); |
| mpfr_dump (dst_small); |
| printf ("expected "); |
| mpfr_dump (tmp); |
| printf ("approx "); |
| mpfr_dump (dst_big); |
| exit (1); |
| } |
| compare2 = mpfr_cmp (tmp, dst_big); |
| /* if rounding to nearest, cannot know the sign of t - f(x) |
| because of composed rounding: y = o(f(x)) and t = o(y) */ |
| if (compare * compare2 >= 0) |
| compare = compare + compare2; |
| else |
| compare = inexact; /* cannot determine sign(t-f(x)) */ |
| if (((inexact == 0) && (compare != 0)) || |
| ((inexact > 0) && (compare <= 0)) || |
| ((inexact < 0) && (compare >= 0))) |
| { |
| printf ("Wrong inexact flag for rnd=%s and %s_z:\n" |
| "expected %d, got %d\n", |
| mpfr_print_rnd_mode (rnd), op, compare, inexact); |
| printf ("\narg1="); mpfr_print_binary (arg1); |
| printf ("\narg2="); mpz_out_str(stdout, 2, arg2); |
| printf ("\ndstl="); mpfr_print_binary (dst_big); |
| printf ("\ndsts="); mpfr_print_binary (dst_small); |
| printf ("\ntmp ="); mpfr_dump (tmp); |
| exit (1); |
| } |
| } |
| } |
| } |
| |
| mpz_clear (arg2); |
| mpfr_clears (arg1, dst_big, dst_small, tmp, (mpfr_ptr) 0); |
| } |
| |
| static void |
| test_generic2z (mpfr_prec_t p0, mpfr_prec_t p1, unsigned int N, |
| int (*func)(mpfr_ptr, mpz_srcptr, mpfr_srcptr, mpfr_rnd_t), |
| const char *op) |
| { |
| mpfr_prec_t prec; |
| mpfr_t arg1, dst_big, dst_small, tmp; |
| mpz_t arg2; |
| mpfr_rnd_t rnd; |
| int inexact, compare, compare2; |
| unsigned int n; |
| |
| mpfr_inits (arg1, dst_big, dst_small, tmp, (mpfr_ptr) 0); |
| mpz_init (arg2); |
| |
| for (prec = p0; prec <= p1; prec++) |
| { |
| mpfr_set_prec (arg1, prec); |
| mpfr_set_prec (tmp, prec); |
| mpfr_set_prec (dst_small, prec); |
| |
| for (n=0; n<N; n++) |
| { |
| mpfr_urandomb (arg1, RANDS); |
| mpz_urandomb (arg2, RANDS, 1024); |
| rnd = RND_RAND (); |
| mpfr_set_prec (dst_big, 2*prec); |
| compare = func(dst_big, arg2, arg1, rnd); |
| if (mpfr_can_round (dst_big, 2*prec, rnd, rnd, prec)) |
| { |
| mpfr_set (tmp, dst_big, rnd); |
| inexact = func(dst_small, arg2, arg1, rnd); |
| if (mpfr_cmp (tmp, dst_small)) |
| { |
| printf ("Results differ for prec=%u rnd_mode=%s and %s_z:\n" |
| "arg1=", |
| (unsigned) prec, mpfr_print_rnd_mode (rnd), op); |
| mpfr_print_binary (arg1); |
| printf("\narg2="); |
| mpz_out_str (stdout, 10, arg2); |
| printf ("\ngot "); |
| mpfr_dump (dst_small); |
| printf ("expected "); |
| mpfr_dump (tmp); |
| printf ("approx "); |
| mpfr_dump (dst_big); |
| exit (1); |
| } |
| compare2 = mpfr_cmp (tmp, dst_big); |
| /* if rounding to nearest, cannot know the sign of t - f(x) |
| because of composed rounding: y = o(f(x)) and t = o(y) */ |
| if (compare * compare2 >= 0) |
| compare = compare + compare2; |
| else |
| compare = inexact; /* cannot determine sign(t-f(x)) */ |
| if (((inexact == 0) && (compare != 0)) || |
| ((inexact > 0) && (compare <= 0)) || |
| ((inexact < 0) && (compare >= 0))) |
| { |
| printf ("Wrong inexact flag for rnd=%s and %s_z:\n" |
| "expected %d, got %d\n", |
| mpfr_print_rnd_mode (rnd), op, compare, inexact); |
| printf ("\narg1="); mpfr_print_binary (arg1); |
| printf ("\narg2="); mpz_out_str(stdout, 2, arg2); |
| printf ("\ndstl="); mpfr_print_binary (dst_big); |
| printf ("\ndsts="); mpfr_print_binary (dst_small); |
| printf ("\ntmp ="); mpfr_dump (tmp); |
| exit (1); |
| } |
| } |
| } |
| } |
| |
| mpz_clear (arg2); |
| mpfr_clears (arg1, dst_big, dst_small, tmp, (mpfr_ptr) 0); |
| } |
| |
| static void |
| test_genericq (mpfr_prec_t p0, mpfr_prec_t p1, unsigned int N, |
| int (*func)(mpfr_ptr, mpfr_srcptr, mpq_srcptr, mpfr_rnd_t), |
| const char *op) |
| { |
| mpfr_prec_t prec; |
| mpfr_t arg1, dst_big, dst_small, tmp; |
| mpq_t arg2; |
| mpfr_rnd_t rnd; |
| int inexact, compare, compare2; |
| unsigned int n; |
| |
| mpfr_inits (arg1, dst_big, dst_small, tmp, (mpfr_ptr) 0); |
| mpq_init (arg2); |
| |
| for (prec = p0; prec <= p1; prec++) |
| { |
| mpfr_set_prec (arg1, prec); |
| mpfr_set_prec (tmp, prec); |
| mpfr_set_prec (dst_small, prec); |
| |
| for (n=0; n<N; n++) |
| { |
| mpfr_urandomb (arg1, RANDS); |
| mpq_set_ui (arg2, randlimb (), randlimb() ); |
| mpq_canonicalize (arg2); |
| rnd = RND_RAND (); |
| mpfr_set_prec (dst_big, prec+10); |
| compare = func(dst_big, arg1, arg2, rnd); |
| if (mpfr_can_round (dst_big, prec+10, rnd, rnd, prec)) |
| { |
| mpfr_set (tmp, dst_big, rnd); |
| inexact = func(dst_small, arg1, arg2, rnd); |
| if (mpfr_cmp (tmp, dst_small)) |
| { |
| printf ("Results differ for prec=%u rnd_mode=%s and %s_q:\n" |
| "arg1=", |
| (unsigned) prec, mpfr_print_rnd_mode (rnd), op); |
| mpfr_print_binary (arg1); |
| printf("\narg2="); |
| mpq_out_str(stdout, 2, arg2); |
| printf ("\ngot "); |
| mpfr_print_binary (dst_small); |
| printf ("\nexpected "); |
| mpfr_print_binary (tmp); |
| printf ("\napprox "); |
| mpfr_print_binary (dst_big); |
| putchar('\n'); |
| exit (1); |
| } |
| compare2 = mpfr_cmp (tmp, dst_big); |
| /* if rounding to nearest, cannot know the sign of t - f(x) |
| because of composed rounding: y = o(f(x)) and t = o(y) */ |
| if (compare * compare2 >= 0) |
| compare = compare + compare2; |
| else |
| compare = inexact; /* cannot determine sign(t-f(x)) */ |
| if (((inexact == 0) && (compare != 0)) || |
| ((inexact > 0) && (compare <= 0)) || |
| ((inexact < 0) && (compare >= 0))) |
| { |
| printf ("Wrong inexact flag for rnd=%s and %s_q:\n" |
| "expected %d, got %d", |
| mpfr_print_rnd_mode (rnd), op, compare, inexact); |
| printf ("\narg1="); mpfr_print_binary (arg1); |
| printf ("\narg2="); mpq_out_str(stdout, 2, arg2); |
| printf ("\ndstl="); mpfr_print_binary (dst_big); |
| printf ("\ndsts="); mpfr_print_binary (dst_small); |
| printf ("\ntmp ="); mpfr_print_binary (tmp); |
| putchar('\n'); |
| exit (1); |
| } |
| } |
| } |
| } |
| |
| mpq_clear (arg2); |
| mpfr_clears (arg1, dst_big, dst_small, tmp, (mpfr_ptr) 0); |
| } |
| |
| static void |
| test_specialq (mpfr_prec_t p0, mpfr_prec_t p1, unsigned int N, |
| int (*mpfr_func)(mpfr_ptr, mpfr_srcptr, mpq_srcptr, mpfr_rnd_t), |
| void (*mpq_func)(mpq_ptr, mpq_srcptr, mpq_srcptr), |
| const char *op) |
| { |
| mpfr_t fra, frb, frq; |
| mpq_t q1, q2, qr; |
| unsigned int n; |
| mpfr_prec_t prec; |
| |
| for (prec = p0 ; prec < p1 ; prec++) |
| { |
| mpfr_inits2 (prec, fra, frb, frq, (mpfr_ptr) 0); |
| mpq_init (q1); mpq_init(q2); mpq_init (qr); |
| |
| for( n = 0 ; n < N ; n++) |
| { |
| mpq_set_ui(q1, randlimb(), randlimb() ); |
| mpq_set_ui(q2, randlimb(), randlimb() ); |
| mpq_canonicalize (q1); |
| mpq_canonicalize (q2); |
| mpq_func (qr, q1, q2); |
| mpfr_set_q (fra, q1, MPFR_RNDD); |
| mpfr_func (fra, fra, q2, MPFR_RNDD); |
| mpfr_set_q (frb, q1, MPFR_RNDU); |
| mpfr_func (frb, frb, q2, MPFR_RNDU); |
| mpfr_set_q (frq, qr, MPFR_RNDN); |
| /* We should have fra <= qr <= frb */ |
| if ( (mpfr_cmp(fra, frq) > 0) || (mpfr_cmp (frq, frb) > 0)) |
| { |
| printf("Range error for prec=%lu and %s", |
| (unsigned long) prec, op); |
| printf ("\nq1="); mpq_out_str(stdout, 2, q1); |
| printf ("\nq2="); mpq_out_str(stdout, 2, q2); |
| printf ("\nfr_dn="); mpfr_print_binary (fra); |
| printf ("\nfr_q ="); mpfr_print_binary (frq); |
| printf ("\nfr_up="); mpfr_print_binary (frb); |
| putchar('\n'); |
| exit (1); |
| } |
| } |
| |
| mpq_clear (q1); mpq_clear (q2); mpq_clear (qr); |
| mpfr_clears (fra, frb, frq, (mpfr_ptr) 0); |
| } |
| } |
| |
| static void |
| bug_mul_q_20100810 (void) |
| { |
| mpfr_t x; |
| mpfr_t y; |
| mpq_t q; |
| int inexact; |
| |
| mpfr_init (x); |
| mpfr_init (y); |
| mpq_init (q); |
| |
| /* mpfr_mul_q: the inexact value must be set in case of overflow */ |
| mpq_set_ui (q, 4096, 3); |
| mpfr_set_inf (x, +1); |
| mpfr_nextbelow (x); |
| inexact = mpfr_mul_q (y, x, q, MPFR_RNDU); |
| |
| if (inexact <= 0) |
| { |
| printf ("Overflow error in mpfr_mul_q. "); |
| printf ("Wrong inexact flag: got %d, should be positive.\n", inexact); |
| |
| exit (1); |
| } |
| if (!mpfr_inf_p (y)) |
| { |
| printf ("Overflow error in mpfr_mul_q (y, x, q, MPFR_RNDD). "); |
| printf ("\nx = "); |
| mpfr_out_str (stdout, 10, 0, x, MPFR_RNDD); |
| printf ("\nq = "); |
| mpq_out_str (stdout, 10, q); |
| printf ("\ny = "); |
| mpfr_out_str (stdout, 10, 0, y, MPFR_RNDD); |
| printf (" (should be +infinity)\n"); |
| |
| exit (1); |
| } |
| |
| mpq_clear (q); |
| mpfr_clear (y); |
| mpfr_clear (x); |
| } |
| |
| static void |
| bug_div_q_20100810 (void) |
| { |
| mpfr_t x; |
| mpfr_t y; |
| mpq_t q; |
| int inexact; |
| |
| mpfr_init (x); |
| mpfr_init (y); |
| mpq_init (q); |
| |
| /* mpfr_div_q: the inexact value must be set in case of overflow */ |
| mpq_set_ui (q, 3, 4096); |
| mpfr_set_inf (x, +1); |
| mpfr_nextbelow (x); |
| inexact = mpfr_div_q (y, x, q, MPFR_RNDU); |
| |
| if (inexact <= 0) |
| { |
| printf ("Overflow error in mpfr_div_q. "); |
| printf ("Wrong inexact flag: got %d, should be positive.\n", inexact); |
| |
| exit (1); |
| } |
| if (!mpfr_inf_p (y)) |
| { |
| printf ("Overflow error in mpfr_div_q (y, x, q, MPFR_RNDD). "); |
| printf ("\nx = "); |
| mpfr_out_str (stdout, 10, 0, x, MPFR_RNDD); |
| printf ("\nq = "); |
| mpq_out_str (stdout, 10, q); |
| printf ("\ny = "); |
| mpfr_out_str (stdout, 10, 0, y, MPFR_RNDD); |
| printf (" (should be +infinity)\n"); |
| |
| exit (1); |
| } |
| |
| mpq_clear (q); |
| mpfr_clear (y); |
| mpfr_clear (x); |
| } |
| |
| static void |
| bug_mul_div_q_20100818 (void) |
| { |
| mpq_t qa, qb; |
| mpfr_t x1, x2, y1, y2, y3; |
| mpfr_exp_t emin, emax, e; |
| int inex; |
| int rnd; |
| |
| emin = mpfr_get_emin (); |
| emax = mpfr_get_emax (); |
| set_emin (MPFR_EMIN_MIN); |
| set_emax (MPFR_EMAX_MAX); |
| |
| mpq_init (qa); |
| mpq_init (qb); |
| mpfr_inits2 (32, x1, x2, y1, y2, y3, (mpfr_ptr) 0); |
| |
| mpq_set_ui (qa, 3, 17); |
| mpq_set_ui (qb, 17, 3); |
| inex = mpfr_set_ui (x1, 7, MPFR_RNDN); |
| MPFR_ASSERTN (inex == 0); |
| |
| e = MPFR_EMAX_MAX - 3; |
| inex = mpfr_set_ui_2exp (x2, 7, e, MPFR_RNDN); /* x2 = x1 * 2^e */ |
| MPFR_ASSERTN (inex == 0); |
| |
| RND_LOOP(rnd) |
| { |
| mpfr_mul_q (y1, x1, qa, (mpfr_rnd_t) rnd); |
| mpfr_div_q (y3, x1, qb, (mpfr_rnd_t) rnd); |
| MPFR_ASSERTN (mpfr_equal_p (y1, y3)); |
| inex = mpfr_set_ui_2exp (y3, 1, e, MPFR_RNDN); |
| MPFR_ASSERTN (inex == 0); |
| inex = mpfr_mul (y3, y3, y1, MPFR_RNDN); /* y3 = y1 * 2^e */ |
| MPFR_ASSERTN (inex == 0); |
| mpfr_mul_q (y2, x2, qa, (mpfr_rnd_t) rnd); |
| if (! mpfr_equal_p (y2, y3)) |
| { |
| printf ("Error 1 in bug_mul_div_q_20100818 (rnd = %d)\n", rnd); |
| printf ("Expected "); mpfr_dump (y3); |
| printf ("Got "); mpfr_dump (y2); |
| exit (1); |
| } |
| mpfr_div_q (y2, x2, qb, (mpfr_rnd_t) rnd); |
| if (! mpfr_equal_p (y2, y3)) |
| { |
| printf ("Error 2 in bug_mul_div_q_20100818 (rnd = %d)\n", rnd); |
| printf ("Expected "); mpfr_dump (y3); |
| printf ("Got "); mpfr_dump (y2); |
| exit (1); |
| } |
| } |
| |
| e = MPFR_EMIN_MIN; |
| inex = mpfr_set_ui_2exp (x2, 7, e, MPFR_RNDN); /* x2 = x1 * 2^e */ |
| MPFR_ASSERTN (inex == 0); |
| |
| RND_LOOP(rnd) |
| { |
| mpfr_div_q (y1, x1, qa, (mpfr_rnd_t) rnd); |
| mpfr_mul_q (y3, x1, qb, (mpfr_rnd_t) rnd); |
| MPFR_ASSERTN (mpfr_equal_p (y1, y3)); |
| inex = mpfr_set_ui_2exp (y3, 1, e, MPFR_RNDN); |
| MPFR_ASSERTN (inex == 0); |
| inex = mpfr_mul (y3, y3, y1, MPFR_RNDN); /* y3 = y1 * 2^e */ |
| MPFR_ASSERTN (inex == 0); |
| mpfr_div_q (y2, x2, qa, (mpfr_rnd_t) rnd); |
| if (! mpfr_equal_p (y2, y3)) |
| { |
| printf ("Error 3 in bug_mul_div_q_20100818 (rnd = %d)\n", rnd); |
| printf ("Expected "); mpfr_dump (y3); |
| printf ("Got "); mpfr_dump (y2); |
| exit (1); |
| } |
| mpfr_mul_q (y2, x2, qb, (mpfr_rnd_t) rnd); |
| if (! mpfr_equal_p (y2, y3)) |
| { |
| printf ("Error 4 in bug_mul_div_q_20100818 (rnd = %d)\n", rnd); |
| printf ("Expected "); mpfr_dump (y3); |
| printf ("Got "); mpfr_dump (y2); |
| exit (1); |
| } |
| } |
| |
| mpq_clear (qa); |
| mpq_clear (qb); |
| mpfr_clears (x1, x2, y1, y2, y3, (mpfr_ptr) 0); |
| |
| set_emin (emin); |
| set_emax (emax); |
| } |
| |
| static void |
| reduced_expo_range (void) |
| { |
| mpfr_t x; |
| mpz_t z; |
| mpq_t q; |
| mpfr_exp_t emin; |
| int inex; |
| |
| emin = mpfr_get_emin (); |
| set_emin (4); |
| |
| mpfr_init2 (x, 32); |
| |
| mpz_init (z); |
| mpfr_clear_flags (); |
| inex = mpfr_set_ui (x, 17, MPFR_RNDN); |
| MPFR_ASSERTN (inex == 0); |
| mpz_set_ui (z, 3); |
| inex = mpfr_mul_z (x, x, z, MPFR_RNDN); |
| if (inex != 0 || MPFR_IS_NAN (x) || mpfr_cmp_ui (x, 51) != 0) |
| { |
| printf ("Error 1 in reduce_expo_range: expected 51 with inex = 0," |
| " got\n"); |
| mpfr_out_str (stdout, 10, 0, x, MPFR_RNDN); |
| printf ("with inex = %d\n", inex); |
| exit (1); |
| } |
| inex = mpfr_div_z (x, x, z, MPFR_RNDN); |
| if (inex != 0 || MPFR_IS_NAN (x) || mpfr_cmp_ui (x, 17) != 0) |
| { |
| printf ("Error 2 in reduce_expo_range: expected 17 with inex = 0," |
| " got\n"); |
| mpfr_out_str (stdout, 10, 0, x, MPFR_RNDN); |
| printf ("with inex = %d\n", inex); |
| exit (1); |
| } |
| inex = mpfr_add_z (x, x, z, MPFR_RNDN); |
| if (inex != 0 || MPFR_IS_NAN (x) || mpfr_cmp_ui (x, 20) != 0) |
| { |
| printf ("Error 3 in reduce_expo_range: expected 20 with inex = 0," |
| " got\n"); |
| mpfr_out_str (stdout, 10, 0, x, MPFR_RNDN); |
| printf ("with inex = %d\n", inex); |
| exit (1); |
| } |
| inex = mpfr_sub_z (x, x, z, MPFR_RNDN); |
| if (inex != 0 || MPFR_IS_NAN (x) || mpfr_cmp_ui (x, 17) != 0) |
| { |
| printf ("Error 4 in reduce_expo_range: expected 17 with inex = 0," |
| " got\n"); |
| mpfr_out_str (stdout, 10, 0, x, MPFR_RNDN); |
| printf ("with inex = %d\n", inex); |
| exit (1); |
| } |
| MPFR_ASSERTN (__gmpfr_flags == 0); |
| if (mpfr_cmp_z (x, z) <= 0) |
| { |
| printf ("Error 5 in reduce_expo_range: expected a positive value.\n"); |
| exit (1); |
| } |
| mpz_clear (z); |
| |
| mpq_init (q); |
| mpq_set_ui (q, 1, 1); |
| mpfr_set_ui (x, 16, MPFR_RNDN); |
| inex = mpfr_add_q (x, x, q, MPFR_RNDN); |
| if (inex != 0 || MPFR_IS_NAN (x) || mpfr_cmp_ui (x, 17) != 0) |
| { |
| printf ("Error in reduce_expo_range for 16 + 1/1," |
| " got inex = %d and\nx = ", inex); |
| mpfr_dump (x); |
| exit (1); |
| } |
| inex = mpfr_sub_q (x, x, q, MPFR_RNDN); |
| if (inex != 0 || MPFR_IS_NAN (x) || mpfr_cmp_ui (x, 16) != 0) |
| { |
| printf ("Error in reduce_expo_range for 17 - 1/1," |
| " got inex = %d and\nx = ", inex); |
| mpfr_dump (x); |
| exit (1); |
| } |
| mpq_clear (q); |
| |
| mpfr_clear (x); |
| |
| set_emin (emin); |
| } |
| |
| static void |
| addsubq_overflow_aux (mpfr_exp_t e) |
| { |
| mpfr_t x, y; |
| mpq_t q; |
| mpfr_exp_t emax; |
| int inex; |
| int rnd; |
| int sign, sub; |
| |
| MPFR_ASSERTN (e <= LONG_MAX); |
| emax = mpfr_get_emax (); |
| set_emax (e); |
| mpfr_inits2 (16, x, y, (mpfr_ptr) 0); |
| mpq_init (q); |
| |
| mpfr_set_inf (x, 1); |
| mpfr_nextbelow (x); |
| mpq_set_ui (q, 1, 1); |
| |
| for (sign = 0; sign <= 1; sign++) |
| { |
| for (sub = 0; sub <= 1; sub++) |
| { |
| RND_LOOP(rnd) |
| { |
| unsigned int flags, ex_flags; |
| int inf; |
| |
| inf = rnd == MPFR_RNDA || |
| rnd == (sign ? MPFR_RNDD : MPFR_RNDU); |
| ex_flags = MPFR_FLAGS_INEXACT | (inf ? MPFR_FLAGS_OVERFLOW : 0); |
| mpfr_clear_flags (); |
| inex = sub ? |
| mpfr_sub_q (y, x, q, (mpfr_rnd_t) rnd) : |
| mpfr_add_q (y, x, q, (mpfr_rnd_t) rnd); |
| flags = __gmpfr_flags; |
| if (inex == 0 || flags != ex_flags || |
| (inf ? ! mpfr_inf_p (y) : ! mpfr_equal_p (x, y))) |
| { |
| printf ("Error in addsubq_overflow_aux(%ld)," |
| " sign = %d, %s\n", (long) e, sign, |
| mpfr_print_rnd_mode ((mpfr_rnd_t) rnd)); |
| printf ("Got inex = %d, y = ", inex); |
| mpfr_dump (y); |
| printf ("Expected flags:"); |
| flags_out (ex_flags); |
| printf ("Got flags: "); |
| flags_out (flags); |
| exit (1); |
| } |
| } |
| mpq_neg (q, q); |
| } |
| mpfr_neg (x, x, MPFR_RNDN); |
| mpq_neg (q, q); |
| } |
| |
| mpq_clear (q); |
| mpfr_clears (x, y, (mpfr_ptr) 0); |
| set_emax (emax); |
| } |
| |
| static void |
| addsubq_overflow (void) |
| { |
| addsubq_overflow_aux (4913); |
| addsubq_overflow_aux (MPFR_EMAX_MAX); |
| } |
| |
| static void |
| coverage_mpfr_mul_q_20110218 (void) |
| { |
| mpfr_t cmp, res, op1; |
| mpq_t op2; |
| int status; |
| |
| mpfr_init2 (cmp, MPFR_PREC_MIN); |
| mpfr_init2 (res, MPFR_PREC_MIN); |
| mpfr_init_set_si (op1, 1, MPFR_RNDN); |
| |
| mpq_init (op2); |
| mpq_set_si (op2, 0, 0); |
| mpz_set_si (mpq_denref (op2), 0); |
| |
| status = mpfr_mul_q (res, op1, op2, MPFR_RNDN); |
| |
| if ((status != 0) || (mpfr_cmp (cmp, res) != 0)) |
| { |
| printf ("Results differ %d.\nres=", status); |
| mpfr_print_binary (res); |
| printf ("\ncmp="); |
| mpfr_print_binary (cmp); |
| putchar ('\n'); |
| exit (1); |
| } |
| |
| mpfr_set_si (op1, 1, MPFR_RNDN); |
| mpq_set_si (op2, -1, 0); |
| |
| status = mpfr_mul_q (res, op1, op2, MPFR_RNDN); |
| |
| mpfr_set_inf (cmp, -1); |
| if ((status != 0) || (mpfr_cmp(res, cmp) != 0)) |
| { |
| printf ("mpfr_mul_q 1 * (-1/0) returned a wrong value :\n waiting for "); |
| mpfr_print_binary (cmp); |
| printf (" got "); |
| mpfr_print_binary (res); |
| printf ("\n trinary value is %d\n", status); |
| exit (1); |
| } |
| |
| mpq_clear (op2); |
| mpfr_clear (op1); |
| mpfr_clear (res); |
| mpfr_clear (cmp); |
| } |
| |
| int |
| main (int argc, char *argv[]) |
| { |
| tests_start_mpfr (); |
| |
| special (); |
| |
| test_specialz (mpfr_add_z, mpz_add, "add"); |
| test_specialz (mpfr_sub_z, mpz_sub, "sub"); |
| test_specialz (mpfr_mul_z, mpz_mul, "mul"); |
| test_genericz (2, 100, 100, mpfr_add_z, "add"); |
| test_genericz (2, 100, 100, mpfr_sub_z, "sub"); |
| test_genericz (2, 100, 100, mpfr_mul_z, "mul"); |
| test_genericz (2, 100, 100, mpfr_div_z, "div"); |
| test_special2z (mpfr_z_sub, mpz_sub, "sub"); |
| test_generic2z (2, 100, 100, mpfr_z_sub, "sub"); |
| |
| test_genericq (2, 100, 100, mpfr_add_q, "add"); |
| test_genericq (2, 100, 100, mpfr_sub_q, "sub"); |
| test_genericq (2, 100, 100, mpfr_mul_q, "mul"); |
| test_genericq (2, 100, 100, mpfr_div_q, "div"); |
| test_specialq (2, 100, 100, mpfr_mul_q, mpq_mul, "mul"); |
| test_specialq (2, 100, 100, mpfr_div_q, mpq_div, "div"); |
| test_specialq (2, 100, 100, mpfr_add_q, mpq_add, "add"); |
| test_specialq (2, 100, 100, mpfr_sub_q, mpq_sub, "sub"); |
| |
| test_cmp_z (2, 100, 100); |
| test_cmp_q (2, 100, 100); |
| test_cmp_f (2, 100, 100); |
| |
| check_for_zero (); |
| |
| bug_mul_q_20100810 (); |
| bug_div_q_20100810 (); |
| bug_mul_div_q_20100818 (); |
| reduced_expo_range (); |
| addsubq_overflow (); |
| |
| coverage_mpfr_mul_q_20110218 (); |
| |
| tests_end_mpfr (); |
| return 0; |
| } |
| |
