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25 lines
603 B
C
25 lines
603 B
C
/*
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* wrapper exp2l(x)
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*/
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#include <float.h>
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#include <math.h>
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#include <math_private.h>
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static const long double o_threshold = (long double) LDBL_MAX_EXP;
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static const long double u_threshold
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= (long double) (LDBL_MIN_EXP - LDBL_MANT_DIG - 1);
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long double
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__exp2l (long double x)
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{
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if (__builtin_expect (islessequal (x, u_threshold)
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|| isgreater (x, o_threshold), 0)
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&& _LIB_VERSION != _IEEE_ && __finitel (x))
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/* exp2 overflow: 244, exp2 underflow: 245 */
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return __kernel_standard (x, x, 244 + (x <= o_threshold));
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return __ieee754_exp2l (x);
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}
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weak_alias (__exp2l, exp2l)
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