+2013-03-19 Adhemerval Zanella <azanella@linux.vnet.ibm.com>
+
+ [BZ #13889]
+ * sysdeps/ieee754/ldbl-128ibm/e_expl.c (__ieee754_expl): Increase the
+ high value to check if expl overflow.
+ * sysdeps/ieee754/ldbl-128ibm/w_expl.c (__expl): Fix threshold constants
+ to check for underflow and overflow.
+ * math/libm-test.inc: Add exp test.
+
2013-03-21 Dmitry V. Levin <ldv@altlinux.org>
[BZ #11120]
* The following bugs are resolved with this release:
- 11120, 11561, 12723, 13550, 13951, 14142, 14176, 14200, 14317, 14327,
- 14496, 14812, 14920, 14964, 14981, 14982, 14985, 14994, 14996, 15003,
- 15006, 15020, 15023, 15036, 15054, 15055, 15062, 15078, 15160, 15232,
- 15234, 15283, 15285, 15287.
+ 11120, 11561, 12723, 13550, 13889, 13951, 14142, 14176, 14200, 14317,
+ 14327, 14496, 14812, 14920, 14964, 14981, 14982, 14985, 14994, 14996,
+ 15003, 15006, 15020, 15023, 15036, 15054, 15055, 15062, 15078, 15160,
+ 15232, 15234, 15283, 15285, 15287.
* Add support for calling C++11 thread_local object destructors on thread
and program exit. This needs compiler support for offloading C++11
TEST_f_f (exp, 0.75L, 2.11700001661267466854536981983709561L);
TEST_f_f (exp, 50.0L, 5184705528587072464087.45332293348538L);
TEST_f_f (exp, 88.72269439697265625L, 3.40233126623160774937554134772290447915e38L);
+#ifndef TEST_FLOAT
+ TEST_f_f (exp, 709.75L, 1.739836873264160557698252711673830393864768e+308L);
+#endif
#if defined TEST_LDOUBLE && __LDBL_MAX_EXP__ > 1024
/* The result can only be represented in sane long double. */
TEST_f_f (exp, 1000.0L, 0.197007111401704699388887935224332313e435L);
static const long double C[] = {
/* Smallest integer x for which e^x overflows. */
#define himark C[0]
- 709.08956571282405153382846025171462914L,
+ 709.78271289338399678773454114191496482L,
/* Largest integer x for which e^x underflows. */
#define lomark C[1]
--744.44007192138121808966388925909996033L,
+-744.44007192138126231410729844608163411L,
/* 3x2^96 */
#define THREEp96 C[2]
-/* Looks like we can use ieee854 w_expl.c as is for IBM extended format. */
+#include <math.h>
+#include <math_private.h>
#include <math_ldbl_opt.h>
-#undef weak_alias
-#define weak_alias(n,a)
-#include <sysdeps/ieee754/ldbl-128/w_expl.c>
+
+static const long double o_thres = 709.78271289338399678773454114191496482L;
+static const long double u_thres = -744.44007192138126231410729844608163411L;
+
+long double __expl(long double x) /* wrapper exp */
+{
+ long double z;
+ z = __ieee754_expl(x);
+ if (_LIB_VERSION == _IEEE_)
+ return z;
+ if (__finitel(x))
+ {
+ if (x >= o_thres)
+ return __kernel_standard_l(x,x,206); /* exp overflow */
+ else if (x <= u_thres)
+ return __kernel_standard_l(x,x,207); /* exp underflow */
+ }
+ return z;
+}
+hidden_def (__expl)
long_double_symbol (libm, __expl, expl);