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[BZ #2592]

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2006-06-17  Joseph S. Myers  <joseph@codesourcery.com>
	[BZ #2592]
	* math/libm-test.inc (lrint_test_tonearest): New function.
	(lrint_test_towardzero): New function.
	(lrint_test_downward): New function.
	(lrint_test_upward): New function.
	(main): Run these new tests.
	* sysdeps/ieee754/dbl-64/s_llrint.c (__llrint): Correct rounding
	of values near to 0.
	(two52): Use double not long double.
	* sysdeps/ieee754/dbl-64/s_lrint.c (__lrint): Likewise.
	* sysdeps/ieee754/flt-32/s_llrintf.c (__llrintf): Likewise.
	(two23): Use float not double.
	* sysdeps/ieee754/flt-32/s_lrintf.c (__lrintf): Likewise.
	(two23): Use float not double.
	* sysdeps/ieee754/ldbl-128/s_llrintl.c (__llrintl): Likewise.
	* sysdeps/ieee754/ldbl-128/s_lrintl.c (__lrintl): Likewise.
	* sysdeps/ieee754/ldbl-96/s_llrintl.c (__llrintl): Likewise.
	* sysdeps/ieee754/ldbl-96/s_lrintl.c (__lrintl): Likewise.
This commit is contained in:
Ulrich Drepper
2006-09-20 17:29:36 +00:00
parent 60cb50c7b6
commit 6624dbc07b
12 changed files with 248 additions and 77 deletions
Download Patch File Download Diff File Expand all files Collapse all files

164
math/libm-test.inc
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@@ -3272,6 +3272,166 @@ lrint_test (void)
}
static void
lrint_test_tonearest (void)
{
int save_round_mode;
START (lrint_tonearest);
save_round_mode = fegetround ();
if (!fesetround (FE_TONEAREST))
{
TEST_f_l (lrint, 0.0, 0);
TEST_f_l (lrint, minus_zero, 0);
TEST_f_l (lrint, 0.2L, 0);
TEST_f_l (lrint, -0.2L, 0);
TEST_f_l (lrint, 0.5L, 0);
TEST_f_l (lrint, -0.5L, 0);
TEST_f_l (lrint, 0.8L, 1);
TEST_f_l (lrint, -0.8L, -1);
TEST_f_l (lrint, 1.4L, 1);
TEST_f_l (lrint, -1.4L, -1);
TEST_f_l (lrint, 8388600.3L, 8388600);
TEST_f_l (lrint, -8388600.3L, -8388600);
TEST_f_l (lrint, 1071930.0008, 1071930);
#ifndef TEST_FLOAT
TEST_f_l (lrint, 1073741824.01, 1073741824);
# if LONG_MAX > 281474976710656
TEST_f_l (lrint, 281474976710656.025, 281474976710656);
# endif
#endif
}
fesetround (save_round_mode);
END (lrint_tonearest);
}
static void
lrint_test_towardzero (void)
{
int save_round_mode;
START (lrint_towardzero);
save_round_mode = fegetround ();
if (!fesetround (FE_TOWARDZERO))
{
TEST_f_l (lrint, 0.0, 0);
TEST_f_l (lrint, minus_zero, 0);
TEST_f_l (lrint, 0.2L, 0);
TEST_f_l (lrint, -0.2L, 0);
TEST_f_l (lrint, 0.5L, 0);
TEST_f_l (lrint, -0.5L, 0);
TEST_f_l (lrint, 0.8L, 0);
TEST_f_l (lrint, -0.8L, 0);
TEST_f_l (lrint, 1.4L, 1);
TEST_f_l (lrint, -1.4L, -1);
TEST_f_l (lrint, 8388600.3L, 8388600);
TEST_f_l (lrint, -8388600.3L, -8388600);
TEST_f_l (lrint, 1071930.0008, 1071930);
#ifndef TEST_FLOAT
TEST_f_l (lrint, 1073741824.01, 1073741824);
# if LONG_MAX > 281474976710656
TEST_f_l (lrint, 281474976710656.025, 281474976710656);
# endif
#endif
}
fesetround (save_round_mode);
END (lrint_towardzero);
}
static void
lrint_test_downward (void)
{
int save_round_mode;
START (lrint_downward);
save_round_mode = fegetround ();
if (!fesetround (FE_DOWNWARD))
{
TEST_f_l (lrint, 0.0, 0);
TEST_f_l (lrint, minus_zero, 0);
TEST_f_l (lrint, 0.2L, 0);
TEST_f_l (lrint, -0.2L, -1);
TEST_f_l (lrint, 0.5L, 0);
TEST_f_l (lrint, -0.5L, -1);
TEST_f_l (lrint, 0.8L, 0);
TEST_f_l (lrint, -0.8L, -1);
TEST_f_l (lrint, 1.4L, 1);
TEST_f_l (lrint, -1.4L, -2);
TEST_f_l (lrint, 8388600.3L, 8388600);
TEST_f_l (lrint, -8388600.3L, -8388601);
TEST_f_l (lrint, 1071930.0008, 1071930);
#ifndef TEST_FLOAT
TEST_f_l (lrint, 1073741824.01, 1073741824);
# if LONG_MAX > 281474976710656
TEST_f_l (lrint, 281474976710656.025, 281474976710656);
# endif
#endif
}
fesetround (save_round_mode);
END (lrint_downward);
}
static void
lrint_test_upward (void)
{
int save_round_mode;
START (lrint_upward);
save_round_mode = fegetround ();
if (!fesetround (FE_UPWARD))
{
TEST_f_l (lrint, 0.0, 0);
TEST_f_l (lrint, minus_zero, 0);
TEST_f_l (lrint, 0.2L, 1);
TEST_f_l (lrint, -0.2L, 0);
TEST_f_l (lrint, 0.5L, 1);
TEST_f_l (lrint, -0.5L, 0);
TEST_f_l (lrint, 0.8L, 1);
TEST_f_l (lrint, -0.8L, 0);
TEST_f_l (lrint, 1.4L, 2);
TEST_f_l (lrint, -1.4L, -1);
TEST_f_l (lrint, 8388600.3L, 8388601);
TEST_f_l (lrint, -8388600.3L, -8388600);
#ifndef TEST_FLOAT
TEST_f_l (lrint, 1071930.0008, 1071931);
TEST_f_l (lrint, 1073741824.01, 1073741825);
# if LONG_MAX > 281474976710656 && defined (TEST_LDOUBLE)
TEST_f_l (lrint, 281474976710656.025, 28147497671065);
# endif
#endif
}
fesetround (save_round_mode);
END (lrint_upward);
}
static void
llrint_test (void)
{
@@ -5937,6 +6097,10 @@ main (int argc, char **argv)
rint_test_downward ();
rint_test_upward ();
lrint_test ();
lrint_test_tonearest ();
lrint_test_towardzero ();
lrint_test_downward ();
lrint_test_upward ();
llrint_test ();
llrint_test_tonearest ();
llrint_test_towardzero ();