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Commit | Line | Data |
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650425ce UD |
1 | /* |
2 | * wrapper exp2f(x) | |
3 | */ | |
4 | ||
9d13fb24 | 5 | #include <math.h> |
9277c064 | 6 | #include <math_private.h> |
813378e9 | 7 | #include <math-svid-compat.h> |
650425ce | 8 | |
f5f0f526 | 9 | #if LIBM_SVID_COMPAT && SHLIB_COMPAT (libm, GLIBC_2_1, GLIBC_2_27) |
650425ce | 10 | float |
f5f0f526 | 11 | __exp2f_compat (float x) |
650425ce | 12 | { |
0cb7efc5 | 13 | float z = __ieee754_exp2f (x); |
d81f90cc WD |
14 | if (__builtin_expect (!isfinite (z) || z == 0, 0) |
15 | && isfinite (x) && _LIB_VERSION != _IEEE_) | |
0ac5ae23 | 16 | /* exp2 overflow: 144, exp2 underflow: 145 */ |
d81f90cc | 17 | return __kernel_standard_f (x, x, 144 + !!signbit (x)); |
0ac5ae23 | 18 | |
0cb7efc5 | 19 | return z; |
650425ce | 20 | } |
f5f0f526 | 21 | compat_symbol (libm, __exp2f_compat, exp2f, GLIBC_2_1); |
4f3647e4 | 22 | #endif |