9.528 logbf
POSIX specification:
http://www.opengroup.org/onlinepubs/9699919799/functions/logbf.html
Gnulib module: logbf
Portability problems fixed by Gnulib:
- This function is missing on some platforms:
Minix 3.1.8, AIX 5.1, HP-UX 11, IRIX 6.5, Solaris 9, MSVC 9.
- This function produces wrong results for subnormal numbers on some platforms:
glibc 2.11/ppc, glibc 2.7/sparc, glibc 2.7/hppa, Solaris 11 2011-11.
Portability problems not fixed by Gnulib: