diff options
Diffstat (limited to 'tests/tlog.c')
| -rw-r--r-- | tests/tlog.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/tests/tlog.c b/tests/tlog.c index d3f560d47..517c66c33 100644 --- a/tests/tlog.c +++ b/tests/tlog.c @@ -172,6 +172,11 @@ special (void) mpfr_sqrt (x, x, GMP_RNDN); mpfr_log (y, x, GMP_RNDN); + /* negative argument */ + mpfr_set_si (x, -1, GMP_RNDN); + mpfr_log (y, x, GMP_RNDN); + MPFR_ASSERTN(mpfr_nan_p (y)); + mpfr_clear (x); mpfr_clear (y); } |