6 #include <math_private.h>
7 #include <math-svid-compat.h>
8 #include <libm-alias-ldouble.h>
12 __exp2l (long double x)
14 long double z = __ieee754_exp2l (x);
15 if (__builtin_expect (!isfinite (z) || z == 0, 0)
16 && isfinite (x) && _LIB_VERSION != _IEEE_)
17 /* exp2 overflow: 244, exp2 underflow: 245 */
18 return __kernel_standard_l (x, x, 244 + !!signbit (x));
22 libm_alias_ldouble (__exp2, exp2)