diff options
Diffstat (limited to 'tests/thypot.c')
| -rw-r--r-- | tests/thypot.c | 46 |
1 files changed, 44 insertions, 2 deletions
diff --git a/tests/thypot.c b/tests/thypot.c index fdb7eefab..c1663f21a 100644 --- a/tests/thypot.c +++ b/tests/thypot.c @@ -1,6 +1,6 @@ /* Test file for mpfr_hypot. -Copyright 2001, 2002, 2003, 2004 Free Software Foundation. +Copyright 2001, 2002, 2003, 2004, 2005 Free Software Foundation. Adapted from tarctan.c. This file is part of the MPFR Library. @@ -106,6 +106,47 @@ test_large (void) mpfr_clear (t); } +static void +test_large_small (void) +{ + mpfr_t x, y, z; + int inexact; + + mpfr_init2 (x, 3); + mpfr_init2 (y, 2); + mpfr_init2 (z, 2); + + mpfr_set_ui_2exp (x, 1, mpfr_get_emax () / 2, GMP_RNDN); + mpfr_set_ui_2exp (y, 1, -1, GMP_RNDN); + inexact = mpfr_hypot (z, x, y, GMP_RNDN); + if (inexact >= 0 || mpfr_cmp (x, z)) + { + printf ("Error 1 in test_large_small\n"); + exit (1); + } + + mpfr_mul_ui (x, x, 5, GMP_RNDN); + inexact = mpfr_hypot (z, x, y, GMP_RNDN); + if (mpfr_cmp (x, z) >= 0) + { + printf ("Error 2 in test_large_small\n"); + printf ("x = "); + mpfr_out_str (stdout, 2, 0, x, GMP_RNDN); + printf ("\n"); + printf ("y = "); + mpfr_out_str (stdout, 2, 0, y, GMP_RNDN); + printf ("\n"); + printf ("z = "); + mpfr_out_str (stdout, 2, 0, z, GMP_RNDN); + printf (" (in precision 2)\n"); + exit (1); + } + + mpfr_clear (x); + mpfr_clear (y); + mpfr_clear (z); +} + int main (int argc, char *argv[]) { @@ -147,7 +188,7 @@ main (int argc, char *argv[]) mpfr_neg (x1, x1, GMP_RNDN); if (randlimb () % 2) mpfr_neg (x2, x2, GMP_RNDN); - rnd = RND_RAND (); + rnd = (mp_rnd_t) RND_RAND (); mpfr_set_prec (y, yprec); compare =TEST_FUNCTION (y, x1,x2, rnd); @@ -204,6 +245,7 @@ main (int argc, char *argv[]) mpfr_clear (t); test_large (); + test_large_small (); tests_end_mpfr (); return 0; |