1 | /* |
---|---|
2 | * wrapper exp2l(x) |
3 | */ |
4 | |
5 | #include <math.h> |
6 | #include <math_private.h> |
7 | |
8 | long double |
9 | __exp2l (long double x) |
10 | { |
11 | long double z = __ieee754_exp2l (x); |
12 | if (__builtin_expect (!isfinite (z) || z == 0, 0) |
13 | && isfinite (x) && _LIB_VERSION != _IEEE_) |
14 | /* exp2 overflow: 244, exp2 underflow: 245 */ |
15 | return __kernel_standard_l (x, x, 244 + !!signbit (x)); |
16 | |
17 | return z; |
18 | } |
19 | weak_alias (__exp2l, exp2l) |
20 |