@node logb
@section @code{logb}
@findex logb

POSIX specification:@* @url{http://www.opengroup.org/onlinepubs/9699919799/functions/logb.html}

Gnulib module: logb

Portability problems fixed by Gnulib:
@itemize
@item
This function is missing a declaration on some platforms:
Cygwin 1.5.x.
@end itemize

Portability problems not fixed by Gnulib:
@itemize
@item
This function is missing on some platforms:
Minix 3.1.8, MSVC 9.
@end itemize
