diff options
Diffstat (limited to 'tests/texp.c')
| -rw-r--r-- | tests/texp.c | 24 |
1 files changed, 14 insertions, 10 deletions
diff --git a/tests/texp.c b/tests/texp.c index d1bba9a51..3ff9acfae 100644 --- a/tests/texp.c +++ b/tests/texp.c @@ -1,6 +1,6 @@ /* Test file for mpfr_exp. -Copyright 1999, 2001, 2002, 2003, 2004 Free Software Foundation, Inc. +Copyright 1999, 2001, 2002, 2003, 2004, 2005 Free Software Foundation, Inc. This file is part of the MPFR Library. @@ -31,6 +31,8 @@ check3 (const char *op, mp_rnd_t rnd, const char *res) mpfr_t x, y; mpfr_inits2 (53, x, y, NULL); + /* y negative. If we forget to set the sign in mpfr_exp, we'll see it. */ + mpfr_set_si (y, -1, GMP_RNDN); mpfr_set_str1 (x, op); mpfr_exp (y, x, rnd); if (mpfr_cmp_str1 (y, res) ) @@ -142,7 +144,7 @@ compare_exp2_exp3 (int n) mpfr_set_prec (y, prec); mpfr_set_prec (z, prec); mpfr_random (x); - rnd = RND_RAND() ; + rnd = (mp_rnd_t) RND_RAND(); mpfr_exp_2 (y, x, rnd); mpfr_exp_3 (z, x, rnd); if (mpfr_cmp (y,z)) @@ -217,7 +219,7 @@ check_special () /* check overflow */ emax = mpfr_get_emax (); - mpfr_set_emax (10); + set_emax (10); mpfr_set_ui (x, 7, GMP_RNDN); mpfr_exp (y, x, GMP_RNDN); if (!mpfr_inf_p (y) || mpfr_sgn (y) < 0) @@ -225,11 +227,11 @@ check_special () printf ("Error for exp(7) for emax=10\n"); exit (1); } - mpfr_set_emax (emax); + set_emax (emax); /* check underflow */ emin = mpfr_get_emin (); - mpfr_set_emin (-10); + set_emin (-10); mpfr_set_si (x, -9, GMP_RNDN); mpfr_exp (y, x, GMP_RNDN); if (mpfr_cmp_ui (y, 0) || mpfr_sgn (y) < 0) @@ -239,7 +241,7 @@ check_special () printf ("Got "); mpfr_print_binary (y); puts (""); exit (1); } - mpfr_set_emin (emin); + set_emin (emin); /* check case EXP(x) < -precy */ mpfr_set_prec (y, 2); @@ -295,8 +297,8 @@ check_special () mpfr_exp_3 (y, x, GMP_RNDN); /* Check some little things about overflow detection */ - mpfr_set_emin (-125); - mpfr_set_emax (128); + set_emin (-125); + set_emax (128); mpfr_set_prec (x, 107); mpfr_set_prec (y, 107); mpfr_set_str_binary (x, "0.11110000000000000000000000000000000000000000000" @@ -312,8 +314,8 @@ check_special () exit (1); } - mpfr_set_emin (MPFR_EMIN_MIN); - mpfr_set_emax (MPFR_EMAX_MAX); + set_emin (MPFR_EMIN_MIN); + set_emax (MPFR_EMAX_MAX); /* Check for overflow producing a segfault with HUGE exponent */ mpfr_set_ui (x, 3, GMP_RNDN); @@ -385,6 +387,8 @@ main (int argc, char *argv[]) compare_exp2_exp3(500); check_worst_cases(); check3("0.0", GMP_RNDU, "1.0"); + check3("-1e-170", GMP_RNDU, "1.0"); + check3("-1e-170", GMP_RNDN, "1.0"); check3("-8.88024741073346941839e-17", GMP_RNDU, "1.0"); check3("8.70772839244701057915e-01", GMP_RNDN, "2.38875626491680437269"); check3("1.0", GMP_RNDN, "2.71828182845904509080"); |