diff options
| author | vlefevre <vlefevre@280ebfd0-de03-0410-8827-d642c229c3f4> | 2017-12-15 02:36:50 +0000 |
|---|---|---|
| committer | vlefevre <vlefevre@280ebfd0-de03-0410-8827-d642c229c3f4> | 2017-12-15 02:36:50 +0000 |
| commit | 36927c5f52b5f5b0e53c477a92e6e41642b61fbe (patch) | |
| tree | 0d8e2ce4289a8f9f4424fb22fe7187c2a1d9671d /tests | |
| parent | 0d1b231885120e8ef9d5d71ea6e848f61771b453 (diff) | |
| download | mpfr-36927c5f52b5f5b0e53c477a92e6e41642b61fbe.tar.gz | |
[src/root.c] Completed fix from r11978, as x=-1 was affected too. Also
added comments explaining that mpfr_root_aux assumes |x| ≠ 1 and why.
Hence the need of a filter on |x| = 1.
[tests/troot.c] Added test for x = -1.
git-svn-id: svn://scm.gforge.inria.fr/svn/mpfr/trunk@11980 280ebfd0-de03-0410-8827-d642c229c3f4
Diffstat (limited to 'tests')
| -rw-r--r-- | tests/troot.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/tests/troot.c b/tests/troot.c index ef905fa8a..947d3267c 100644 --- a/tests/troot.c +++ b/tests/troot.c @@ -467,8 +467,12 @@ bug20171214 (void) mpfr_init2 (y, 837); mpfr_set_ui (x, 1, MPFR_RNDN); inex = TF (y, x, 120, MPFR_RNDN); - MPFR_ASSERTN(inex == 0); - MPFR_ASSERTN(mpfr_cmp_ui (y, 1) == 0); + MPFR_ASSERTN (inex == 0); + MPFR_ASSERTN (mpfr_cmp_ui (y, 1) == 0); + mpfr_set_si (x, -1, MPFR_RNDN); + inex = TF (y, x, 121, MPFR_RNDN); + MPFR_ASSERTN (inex == 0); + MPFR_ASSERTN (mpfr_cmp_si (y, -1) == 0); mpfr_clear (x); mpfr_clear (y); } |