5 POSIX specification:@* @url{http://www.opengroup.org/onlinepubs/9699919799/functions/ilogb.html}
9 Portability problems fixed by Gnulib:
12 This function is missing on some platforms:
13 Minix 3.1.8, IRIX 5.3, MSVC 9.
15 This function returns a wrong result for a zero argument on some platforms:
18 This function returns a wrong result for an infinite argument on some platforms:
19 NetBSD 5.1, OpenBSD 4.9.
21 This function returns a wrong result for a NaN argument on some platforms:
25 Portability problems not fixed by Gnulib: