6 #include "math_private.h"
9 __log2 (double x) /* wrapper log2 */
12 return __ieee754_log2 (x);
15 z = __ieee754_log2 (x);
16 if (_LIB_VERSION == _IEEE_ || __isnan (x)) return z;
20 return __kernel_standard (x, x, 48); /* log2 (0) */
22 return __kernel_standard (x, x, 49); /* log2 (x < 0) */
28 weak_alias (__log2, log2)
30 strong_alias (__log2, __log2l)
31 weak_alias (__log2, log2l)