1  /*
       2   * Public domain.
       3   */
       4  
       5  #include <libm-alias-ldouble.h>
       6  
       7  long double
       8  __logbl (long double x)
       9  {
      10    long double res;
      11  
      12    asm ("fxtract\n"
      13         "fstp	%%st" : "=t" (res) : "0" (x));
      14    return res;
      15  }
      16  
      17  libm_alias_ldouble (__logb, logb)