aboutsummaryrefslogtreecommitdiff
blob: ff7ba2621e614e86f6fac751d8d09910471f5d64 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
/*
 * wrapper log2l(X)
 */

#include <math.h>
#include <math_private.h>

long double
__log2l (long double x)	/* wrapper log2l */
{
#ifdef _IEEE_LIBM
  return __ieee754_log2l (x);
#else
  long double z;
  z = __ieee754_log2l (x);
  if (_LIB_VERSION == _IEEE_ || __isnanl (x)) return z;
  if (x <= 0.0)
    {
      if (x == 0.0)
	return __kernel_standard (x, x, 248); /* log2l (0) */
      else
	return __kernel_standard (x, x, 249); /* log2l (x < 0) */
    }
  else
    return z;
#endif
}
weak_alias (__log2l, log2l)