| 123456789101112131415161718192021222324 |
- /*
- * wrapper exp2l(x)
- */
- #include <math.h>
- #include "math_private.h"
- #if !defined __NO_LONG_DOUBLE_MATH
- long double
- exp2l (long double x)
- {
- # if defined(__UCLIBC_HAS_FENV__)
- long double z = (long double) pow(2.0, (double) x);
- if (__builtin_expect (!isfinite (z) || z == 0, 0)
- && isfinite (x) && _LIB_VERSION != _IEEE_)
- /* exp2 overflow: 244, exp2 underflow: 245 */
- return __kernel_standard_l (x, x, 244 + !!signbit (x));
- return z;
- # else
- return (long double) pow(2.0, (double) x);
- # endif /* __UCLIBC_HAS_FENV__ */
- }
- #endif /* __NO_LONG_DOUBLE_MATH */
|
