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glibc/math/w_exp2f.c
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| /* | |
| * wrapper exp2f(x) | |
| */ | |
| #include <math.h> | |
| #include <math_private.h> | |
| float | |
| __exp2f (float x) | |
| { | |
| float z = __ieee754_exp2f (x); | |
| if (__builtin_expect (!isfinite (z) || z == 0, 0) | |
| && isfinite (x) && _LIB_VERSION != _IEEE_) | |
| /* exp2 overflow: 144, exp2 underflow: 145 */ | |
| return __kernel_standard_f (x, x, 144 + !!signbit (x)); | |
| return z; | |
| } | |
| weak_alias (__exp2f, exp2f) |