5 POSIX specification:@* @url{https://pubs.opengroup.org/onlinepubs/9699919799/functions/expl.html}
9 Portability problems fixed by Gnulib:
12 This function is missing on some platforms:
13 FreeBSD 6.0, NetBSD 5.0, OpenBSD 3.8, Minix 3.1.8, HP-UX 11, IRIX 6.5, Solaris 9, Cygwin 1.7.x, Android 4.4.
15 This function returns 0.0 for all arguments on some platforms:
18 This function returns NaN for small operands on some platforms:
21 This function is only defined as a macro with arguments on some platforms:
24 This function produces results which are accurate to only 16 digits on some
29 Portability problems not fixed by Gnulib: