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20 lines
381 B
C
20 lines
381 B
C
/*
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* wrapper exp2f(x)
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*/
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#include <math.h>
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#include <math_private.h>
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float
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__exp2f (float x)
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{
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float z = __ieee754_exp2f (x);
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if (__builtin_expect (!__finitef (z), 0)
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&& __finitef (x) && _LIB_VERSION != _IEEE_)
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/* exp2 overflow: 144, exp2 underflow: 145 */
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return __kernel_standard_f (x, x, 144 + !!__signbitf (x));
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return z;
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}
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weak_alias (__exp2f, exp2f)
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