diff options
Diffstat (limited to 'tests/tcosh.c')
| -rw-r--r-- | tests/tcosh.c | 32 |
1 files changed, 31 insertions, 1 deletions
diff --git a/tests/tcosh.c b/tests/tcosh.c index 74b138a7b..8f953adb3 100644 --- a/tests/tcosh.c +++ b/tests/tcosh.c @@ -32,6 +32,7 @@ static void special (void) { mpfr_t x, y; + int i; mpfr_init (x); mpfr_init (y); @@ -95,7 +96,36 @@ special (void) { printf ("Error: mpfr_cosh for prec=32 (2)\n"); exit (1); - } + } + + mpfr_set_prec (x, 2); + mpfr_clear_flags (); + mpfr_set_str_binary (x, "1E1000000000"); + i = mpfr_cosh (x, x, GMP_RNDN); + MPFR_ASSERTN (MPFR_IS_INF (x) && MPFR_SIGN (x) > 0); + MPFR_ASSERTN (mpfr_overflow_p ()); + MPFR_ASSERTN (i == 1); + + mpfr_clear_flags (); + mpfr_set_str_binary (x, "-1E1000000000"); + i = mpfr_cosh (x, x, GMP_RNDN); + MPFR_ASSERTN (MPFR_IS_INF (x) && MPFR_SIGN (x) > 0); + MPFR_ASSERTN (mpfr_overflow_p () && !mpfr_underflow_p ()); + MPFR_ASSERTN (i == 1); + + mpfr_clear_flags (); + mpfr_set_str_binary (x, "-1E1000000000"); + i = mpfr_cosh (x, x, GMP_RNDD); + MPFR_ASSERTN (!MPFR_IS_INF (x) && MPFR_SIGN (x) > 0); + MPFR_ASSERTN (mpfr_overflow_p () && !mpfr_underflow_p ()); + MPFR_ASSERTN (i == -1); + + mpfr_clear_flags (); + mpfr_set_str_binary (x, "-1E1000000000"); + i = mpfr_cosh (x, x, GMP_RNDU); + MPFR_ASSERTN (MPFR_IS_INF (x) && MPFR_SIGN (x) > 0); + MPFR_ASSERTN (mpfr_overflow_p () && !mpfr_underflow_p ()); + MPFR_ASSERTN (i == 1); mpfr_clear (x); mpfr_clear (y); |