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author | joseph <joseph@7b3dc134-2b1b-0410-93df-9e9f96275f8d> | 2013-04-28 15:21:50 +0000 |
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committer | joseph <joseph@7b3dc134-2b1b-0410-93df-9e9f96275f8d> | 2013-04-28 15:21:50 +0000 |
commit | c19459a92177fc8864b461e84d017a21c4006dc5 (patch) | |
tree | fcf20ad0222de01ad3a955edb3b65b06724a3a15 /libc/sysdeps/ieee754/ldbl-128ibm/w_expl.c | |
parent | 8751114637bcc3caaf16a4216da0afb84456558a (diff) | |
download | eglibc2-c19459a92177fc8864b461e84d017a21c4006dc5.tar.gz |
Merge changes between r22663 and r22954 from /fsf/trunk.
git-svn-id: svn://svn.eglibc.org/trunk@22955 7b3dc134-2b1b-0410-93df-9e9f96275f8d
Diffstat (limited to 'libc/sysdeps/ieee754/ldbl-128ibm/w_expl.c')
-rw-r--r-- | libc/sysdeps/ieee754/ldbl-128ibm/w_expl.c | 26 |
1 files changed, 22 insertions, 4 deletions
diff --git a/libc/sysdeps/ieee754/ldbl-128ibm/w_expl.c b/libc/sysdeps/ieee754/ldbl-128ibm/w_expl.c index a5e72b217..70fe5f693 100644 --- a/libc/sysdeps/ieee754/ldbl-128ibm/w_expl.c +++ b/libc/sysdeps/ieee754/ldbl-128ibm/w_expl.c @@ -1,6 +1,24 @@ -/* 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); |