diff options
author | vlefevre <vlefevre@280ebfd0-de03-0410-8827-d642c229c3f4> | 2016-02-15 10:20:38 +0000 |
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committer | vlefevre <vlefevre@280ebfd0-de03-0410-8827-d642c229c3f4> | 2016-02-15 10:20:38 +0000 |
commit | e61f4f207c95341b54f7dfbd4595f3a755868259 (patch) | |
tree | a06b277fac829c9641ee559e971806797fabf7f2 /tests | |
parent | 9529d46875363a4eeda71a0f73ba3377722c5d7e (diff) | |
download | mpfr-e61f4f207c95341b54f7dfbd4595f3a755868259.tar.gz |
[src/{fits_intmax.c,fits_s.h,fits_u.h}] Fixed mpfr_fits_* functions: the
flags could be modified, and an assertion failure could be triggered in
debug mode (additional assertion checking) for non-integer numbers just
above the positive limit.
[tests/tfits.c] Many new tests.
(merged changesets r9650,9653-9655,10030-10034 from the trunk, with
mpfr_flags_t replaced by unsigned int)
git-svn-id: svn://scm.gforge.inria.fr/svn/mpfr/branches/3.1@10035 280ebfd0-de03-0410-8827-d642c229c3f4
Diffstat (limited to 'tests')
-rw-r--r-- | tests/tfits.c | 419 |
1 files changed, 194 insertions, 225 deletions
diff --git a/tests/tfits.c b/tests/tfits.c index b205b4c60..3d768118e 100644 --- a/tests/tfits.c +++ b/tests/tfits.c @@ -33,258 +33,225 @@ http://www.gnu.org/licenses/ or write to the Free Software Foundation, Inc., #include "mpfr-intmax.h" #include "mpfr-test.h" -#define ERROR1(N) \ +#define FTEST_AUX(N,NOT,FCT) \ do \ { \ - printf("Error %d for rnd = %s and x = ", N, \ - mpfr_print_rnd_mode ((mpfr_rnd_t) r)); \ - mpfr_dump(x); \ - exit(1); \ + __gmpfr_flags = ex_flags; \ + if (NOT FCT (x, (mpfr_rnd_t) r)) \ + { \ + printf ("Error %d for %s, rnd = %s and x = ", \ + N, #FCT, \ + mpfr_print_rnd_mode ((mpfr_rnd_t) r)); \ + mpfr_dump (x); \ + exit (1); \ + } \ + if (__gmpfr_flags != ex_flags) \ + { \ + unsigned int flags = __gmpfr_flags; \ + printf ("Flags error %d for %s, rnd = %s and x = ", \ + N, #FCT, \ + mpfr_print_rnd_mode ((mpfr_rnd_t) r)); \ + mpfr_dump(x); \ + printf ("Expected flags:"); \ + flags_out (ex_flags); \ + printf ("Got flags: "); \ + flags_out (flags); \ + exit (1); \ + } \ } \ while (0) -static void check_intmax (void); +#define FTEST(N,NOT,FCT) \ + do \ + { \ + mpfr_exp_t e; \ + FTEST_AUX (N,NOT,FCT); \ + if (MPFR_IS_SINGULAR (x)) \ + break; \ + e = mpfr_get_exp (x); \ + set_emin (e); \ + set_emax (e); \ + FTEST_AUX (N,NOT,FCT); \ + set_emin (emin); \ + set_emax (emax); \ + } \ + while (0) + +#define CHECK_ALL(N,NOT) \ + do \ + { \ + FTEST (N, NOT, mpfr_fits_ulong_p); \ + FTEST (N, NOT, mpfr_fits_slong_p); \ + FTEST (N, NOT, mpfr_fits_uint_p); \ + FTEST (N, NOT, mpfr_fits_sint_p); \ + FTEST (N, NOT, mpfr_fits_ushort_p); \ + FTEST (N, NOT, mpfr_fits_sshort_p); \ + } \ + while (0) + +#define CHECK_MAX(N,NOT) \ + do \ + { \ + FTEST (N, NOT, mpfr_fits_uintmax_p); \ + FTEST (N, NOT, mpfr_fits_intmax_p); \ + } \ + while (0) + +/* V is a non-zero limit for the type (*_MIN for a signed type or *_MAX). + * If V is positive, then test V, V + 1/4, V + 3/4 and V + 1. + * If V is negative, then test V, V - 1/4, V - 3/4 and V - 1. + */ +#define CHECK_LIM(N,V,SET,FCT) \ + do \ + { \ + SET (x, V, MPFR_RNDN); \ + FTEST (N, !, FCT); \ + mpfr_set_si_2exp (y, (V) < 0 ? -1 : 1, -2, MPFR_RNDN); \ + mpfr_add (x, x, y, MPFR_RNDN); \ + FTEST (N+1, (r == MPFR_RNDN || \ + MPFR_IS_LIKE_RNDZ (r, (V) < 0)) ^ !!, FCT); \ + mpfr_add (x, x, y, MPFR_RNDN); \ + mpfr_add (x, x, y, MPFR_RNDN); \ + FTEST (N+3, MPFR_IS_LIKE_RNDZ (r, (V) < 0) ^ !!, FCT); \ + mpfr_add (x, x, y, MPFR_RNDN); \ + FTEST (N+4, !!, FCT); \ + } \ + while (0) int main (void) { + mpfr_exp_t emin, emax; mpfr_t x, y; - int i, r; + unsigned int flags[2] = { 0, MPFR_FLAGS_ALL }, ex_flags; + int i, r, fi; tests_start_mpfr (); - mpfr_init2 (x, 256); + emin = mpfr_get_emin (); + emax = mpfr_get_emax (); + + mpfr_init2 (x, sizeof (unsigned long) * CHAR_BIT + 2); mpfr_init2 (y, 8); RND_LOOP (r) - { - - /* Check NAN */ - mpfr_set_nan (x); - if (mpfr_fits_ulong_p (x, (mpfr_rnd_t) r)) - ERROR1 (1); - if (mpfr_fits_slong_p (x, (mpfr_rnd_t) r)) - ERROR1 (2); - if (mpfr_fits_uint_p (x, (mpfr_rnd_t) r)) - ERROR1 (3); - if (mpfr_fits_sint_p (x, (mpfr_rnd_t) r)) - ERROR1 (4); - if (mpfr_fits_ushort_p (x, (mpfr_rnd_t) r)) - ERROR1 (5); - if (mpfr_fits_sshort_p (x, (mpfr_rnd_t) r)) - ERROR1 (6); - - /* Check INF */ - mpfr_set_inf (x, 1); - if (mpfr_fits_ulong_p (x, (mpfr_rnd_t) r)) - ERROR1 (7); - if (mpfr_fits_slong_p (x, (mpfr_rnd_t) r)) - ERROR1 (8); - if (mpfr_fits_uint_p (x, (mpfr_rnd_t) r)) - ERROR1 (9); - if (mpfr_fits_sint_p (x, (mpfr_rnd_t) r)) - ERROR1 (10); - if (mpfr_fits_ushort_p (x, (mpfr_rnd_t) r)) - ERROR1 (11); - if (mpfr_fits_sshort_p (x, (mpfr_rnd_t) r)) - ERROR1 (12); - - /* Check Zero */ - MPFR_SET_ZERO (x); - if (!mpfr_fits_ulong_p (x, (mpfr_rnd_t) r)) - ERROR1 (13); - if (!mpfr_fits_slong_p (x, (mpfr_rnd_t) r)) - ERROR1 (14); - if (!mpfr_fits_uint_p (x, (mpfr_rnd_t) r)) - ERROR1 (15); - if (!mpfr_fits_sint_p (x, (mpfr_rnd_t) r)) - ERROR1 (16); - if (!mpfr_fits_ushort_p (x, (mpfr_rnd_t) r)) - ERROR1 (17); - if (!mpfr_fits_sshort_p (x, (mpfr_rnd_t) r)) - ERROR1 (18); - - /* Check small positive op */ - mpfr_set_str1 (x, "1@-1"); - if (!mpfr_fits_ulong_p (x, (mpfr_rnd_t) r)) - ERROR1 (19); - if (!mpfr_fits_slong_p (x, (mpfr_rnd_t) r)) - ERROR1 (20); - if (!mpfr_fits_uint_p (x, (mpfr_rnd_t) r)) - ERROR1 (21); - if (!mpfr_fits_sint_p (x, (mpfr_rnd_t) r)) - ERROR1 (22); - if (!mpfr_fits_ushort_p (x, (mpfr_rnd_t) r)) - ERROR1 (23); - if (!mpfr_fits_sshort_p (x, (mpfr_rnd_t) r)) - ERROR1 (24); - - /* Check 17 */ - mpfr_set_ui (x, 17, MPFR_RNDN); - if (!mpfr_fits_ulong_p (x, (mpfr_rnd_t) r)) - ERROR1 (25); - if (!mpfr_fits_slong_p (x, (mpfr_rnd_t) r)) - ERROR1 (26); - if (!mpfr_fits_uint_p (x, (mpfr_rnd_t) r)) - ERROR1 (27); - if (!mpfr_fits_sint_p (x, (mpfr_rnd_t) r)) - ERROR1 (28); - if (!mpfr_fits_ushort_p (x, (mpfr_rnd_t) r)) - ERROR1 (29); - if (!mpfr_fits_sshort_p (x, (mpfr_rnd_t) r)) - ERROR1 (30); - - /* Check all other values */ - mpfr_set_ui (x, ULONG_MAX, MPFR_RNDN); - mpfr_mul_2exp (x, x, 1, MPFR_RNDN); - if (mpfr_fits_ulong_p (x, (mpfr_rnd_t) r)) - ERROR1 (31); - if (mpfr_fits_slong_p (x, (mpfr_rnd_t) r)) - ERROR1 (32); - mpfr_mul_2exp (x, x, 40, MPFR_RNDN); - if (mpfr_fits_ulong_p (x, (mpfr_rnd_t) r)) - ERROR1 (33); - if (mpfr_fits_uint_p (x, (mpfr_rnd_t) r)) - ERROR1 (34); - if (mpfr_fits_sint_p (x, (mpfr_rnd_t) r)) - ERROR1 (35); - if (mpfr_fits_ushort_p (x, (mpfr_rnd_t) r)) - ERROR1 (36); - if (mpfr_fits_sshort_p (x, (mpfr_rnd_t) r)) - ERROR1 (37); - - mpfr_set_ui (x, ULONG_MAX, MPFR_RNDN); - if (!mpfr_fits_ulong_p (x, (mpfr_rnd_t) r)) - ERROR1 (38); - mpfr_set_ui (x, LONG_MAX, MPFR_RNDN); - if (!mpfr_fits_slong_p (x, (mpfr_rnd_t) r)) - ERROR1 (39); - mpfr_set_ui (x, UINT_MAX, MPFR_RNDN); - if (!mpfr_fits_uint_p (x, (mpfr_rnd_t) r)) - ERROR1 (40); - mpfr_set_ui (x, INT_MAX, MPFR_RNDN); - if (!mpfr_fits_sint_p (x, (mpfr_rnd_t) r)) - ERROR1 (41); - mpfr_set_ui (x, USHRT_MAX, MPFR_RNDN); - if (!mpfr_fits_ushort_p (x, (mpfr_rnd_t) r)) - ERROR1 (42); - mpfr_set_ui (x, SHRT_MAX, MPFR_RNDN); - if (!mpfr_fits_sshort_p (x, (mpfr_rnd_t) r)) - ERROR1 (43); - - mpfr_set_si (x, 1, MPFR_RNDN); - if (!mpfr_fits_sint_p (x, (mpfr_rnd_t) r)) - ERROR1 (44); - if (!mpfr_fits_sshort_p (x, (mpfr_rnd_t) r)) - ERROR1 (45); - - /* Check negative op */ - for (i = 1; i <= 4; i++) - { - int inv; - - mpfr_set_si_2exp (x, -i, -2, MPFR_RNDN); - mpfr_rint (y, x, (mpfr_rnd_t) r); - inv = MPFR_NOTZERO (y); - if (!mpfr_fits_ulong_p (x, (mpfr_rnd_t) r) ^ inv) - ERROR1 (46); - if (!mpfr_fits_slong_p (x, (mpfr_rnd_t) r)) - ERROR1 (47); - if (!mpfr_fits_uint_p (x, (mpfr_rnd_t) r) ^ inv) - ERROR1 (48); - if (!mpfr_fits_sint_p (x, (mpfr_rnd_t) r)) - ERROR1 (49); - if (!mpfr_fits_ushort_p (x, (mpfr_rnd_t) r) ^ inv) - ERROR1 (50); - if (!mpfr_fits_sshort_p (x, (mpfr_rnd_t) r)) - ERROR1 (51); - } - } - - mpfr_clear (x); - mpfr_clear (y); - - check_intmax (); - - tests_end_mpfr (); - return 0; -} + for (fi = 0; fi < numberof (flags); fi++) + { + ex_flags = flags[fi]; + + /* Check NaN */ + mpfr_set_nan (x); + CHECK_ALL (1, !!); + + /* Check +Inf */ + mpfr_set_inf (x, 1); + CHECK_ALL (2, !!); + + /* Check -Inf */ + mpfr_set_inf (x, -1); + CHECK_ALL (3, !!); + + /* Check +0 */ + mpfr_set_zero (x, 1); + CHECK_ALL (4, !); + + /* Check -0 */ + mpfr_set_zero (x, -1); + CHECK_ALL (5, !); + + /* Check small positive op */ + mpfr_set_str1 (x, "1@-1"); + CHECK_ALL (6, !); + + /* Check 17 */ + mpfr_set_ui (x, 17, MPFR_RNDN); + CHECK_ALL (7, !); + + /* Check large values (no fit) */ + mpfr_set_ui (x, ULONG_MAX, MPFR_RNDN); + mpfr_mul_2exp (x, x, 1, MPFR_RNDN); + CHECK_ALL (8, !!); + mpfr_mul_2exp (x, x, 40, MPFR_RNDN); + CHECK_ALL (9, !!); + + /* Check a non-integer number just below a power of two. */ + mpfr_set_ui_2exp (x, 255, -2, MPFR_RNDN); + CHECK_ALL (10, !); + + /* Check the limits of the types (except 0 for unsigned types) */ + CHECK_LIM (20, ULONG_MAX, mpfr_set_ui, mpfr_fits_ulong_p); + CHECK_LIM (30, LONG_MAX, mpfr_set_si, mpfr_fits_slong_p); + CHECK_LIM (35, LONG_MIN, mpfr_set_si, mpfr_fits_slong_p); + CHECK_LIM (40, UINT_MAX, mpfr_set_ui, mpfr_fits_uint_p); + CHECK_LIM (50, INT_MAX, mpfr_set_si, mpfr_fits_sint_p); + CHECK_LIM (55, INT_MIN, mpfr_set_si, mpfr_fits_sint_p); + CHECK_LIM (60, USHRT_MAX, mpfr_set_ui, mpfr_fits_ushort_p); + CHECK_LIM (70, SHRT_MAX, mpfr_set_si, mpfr_fits_sshort_p); + CHECK_LIM (75, SHRT_MIN, mpfr_set_si, mpfr_fits_sshort_p); + + /* Check negative op */ + for (i = 1; i <= 4; i++) + { + int inv; + + mpfr_set_si_2exp (x, -i, -2, MPFR_RNDN); + mpfr_rint (y, x, (mpfr_rnd_t) r); + inv = MPFR_NOTZERO (y); + FTEST (80, inv ^ !, mpfr_fits_ulong_p); + FTEST (81, !, mpfr_fits_slong_p); + FTEST (82, inv ^ !, mpfr_fits_uint_p); + FTEST (83, !, mpfr_fits_sint_p); + FTEST (84, inv ^ !, mpfr_fits_ushort_p); + FTEST (85, !, mpfr_fits_sshort_p); + } + } -static void -check_intmax (void) -{ #ifdef _MPFR_H_HAVE_INTMAX_T - mpfr_t x, y; - int i, r; - mpfr_init2 (x, sizeof (uintmax_t) * CHAR_BIT); - mpfr_init2 (y, 8); + mpfr_set_prec (x, sizeof (uintmax_t) * CHAR_BIT + 2); RND_LOOP (r) { - /* Check NAN */ + /* Check NaN */ mpfr_set_nan (x); - if (mpfr_fits_uintmax_p (x, (mpfr_rnd_t) r)) - ERROR1 (52); - if (mpfr_fits_intmax_p (x, (mpfr_rnd_t) r)) - ERROR1 (53); + CHECK_MAX (1, !!); - /* Check INF */ + /* Check +Inf */ mpfr_set_inf (x, 1); - if (mpfr_fits_uintmax_p (x, (mpfr_rnd_t) r)) - ERROR1 (54); - if (mpfr_fits_intmax_p (x, (mpfr_rnd_t) r)) - ERROR1 (55); - - /* Check Zero */ - MPFR_SET_ZERO (x); - if (!mpfr_fits_uintmax_p (x, (mpfr_rnd_t) r)) - ERROR1 (56); - if (!mpfr_fits_intmax_p (x, (mpfr_rnd_t) r)) - ERROR1 (57); - - /* Check positive small op */ + CHECK_MAX (2, !!); + + /* Check -Inf */ + mpfr_set_inf (x, -1); + CHECK_MAX (3, !!); + + /* Check +0 */ + mpfr_set_zero (x, 1); + CHECK_MAX (4, !); + + /* Check -0 */ + mpfr_set_zero (x, -1); + CHECK_MAX (5, !); + + /* Check small positive op */ mpfr_set_str1 (x, "1@-1"); - if (!mpfr_fits_uintmax_p (x, (mpfr_rnd_t) r)) - ERROR1 (58); - if (!mpfr_fits_intmax_p (x, (mpfr_rnd_t) r)) - ERROR1 (59); + CHECK_MAX (6, !); /* Check 17 */ mpfr_set_ui (x, 17, MPFR_RNDN); - if (!mpfr_fits_uintmax_p (x, (mpfr_rnd_t) r)) - ERROR1 (60); - if (!mpfr_fits_intmax_p (x, (mpfr_rnd_t) r)) - ERROR1 (61); + CHECK_MAX (7, !); /* Check hugest */ mpfr_set_ui_2exp (x, 42, sizeof (uintmax_t) * 32, MPFR_RNDN); - if (mpfr_fits_uintmax_p (x, (mpfr_rnd_t) r)) - ERROR1 (62); - if (mpfr_fits_intmax_p (x, (mpfr_rnd_t) r)) - ERROR1 (63); - - /* Check all other values */ - mpfr_set_uj (x, MPFR_UINTMAX_MAX, MPFR_RNDN); - mpfr_add_ui (x, x, 1, MPFR_RNDN); - if (mpfr_fits_uintmax_p (x, (mpfr_rnd_t) r)) - ERROR1 (64); - mpfr_set_uj (x, MPFR_UINTMAX_MAX, MPFR_RNDN); - if (!mpfr_fits_uintmax_p (x, (mpfr_rnd_t) r)) - ERROR1 (65); - mpfr_set_sj (x, MPFR_INTMAX_MAX, MPFR_RNDN); - mpfr_add_ui (x, x, 1, MPFR_RNDN); - if (mpfr_fits_intmax_p (x, (mpfr_rnd_t) r)) - ERROR1 (66); - mpfr_set_sj (x, MPFR_INTMAX_MAX, MPFR_RNDN); - if (!mpfr_fits_intmax_p (x, (mpfr_rnd_t) r)) - ERROR1 (67); - mpfr_set_sj (x, MPFR_INTMAX_MIN, MPFR_RNDN); - if (!mpfr_fits_intmax_p (x, (mpfr_rnd_t) r)) - ERROR1 (68); - mpfr_sub_ui (x, x, 1, MPFR_RNDN); - if (mpfr_fits_intmax_p (x, (mpfr_rnd_t) r)) - ERROR1 (69); + CHECK_MAX (8, !!); + + /* Check a non-integer number just below a power of two. */ + mpfr_set_ui_2exp (x, 255, -2, MPFR_RNDN); + CHECK_MAX (10, !); + + /* Check the limits of the types (except 0 for uintmax_t) */ + CHECK_LIM (20, MPFR_UINTMAX_MAX, mpfr_set_uj, mpfr_fits_uintmax_p); + CHECK_LIM (30, MPFR_INTMAX_MAX, mpfr_set_sj, mpfr_fits_intmax_p); + CHECK_LIM (35, MPFR_INTMAX_MIN, mpfr_set_sj, mpfr_fits_intmax_p); /* Check negative op */ for (i = 1; i <= 4; i++) @@ -294,14 +261,16 @@ check_intmax (void) mpfr_set_si_2exp (x, -i, -2, MPFR_RNDN); mpfr_rint (y, x, (mpfr_rnd_t) r); inv = MPFR_NOTZERO (y); - if (!mpfr_fits_uintmax_p (x, (mpfr_rnd_t) r) ^ inv) - ERROR1 (70); - if (!mpfr_fits_intmax_p (x, (mpfr_rnd_t) r)) - ERROR1 (71); + FTEST (80, inv ^ !, mpfr_fits_uintmax_p); + FTEST (81, !, mpfr_fits_intmax_p); } } +#endif /* _MPFR_H_HAVE_INTMAX_T */ + mpfr_clear (x); mpfr_clear (y); -#endif + + tests_end_mpfr (); + return 0; } |