2 @subsection @code{atanf}
5 POSIX specification:@* @url{https://pubs.opengroup.org/onlinepubs/9799919799/functions/atanf.html}
9 Portability problems fixed by Gnulib:
12 This function is missing on some platforms:
13 Minix 3.1.8, AIX 5.1, Solaris 9.
15 This function is only defined as a macro with arguments on some platforms:
19 Portability problems not fixed by Gnulib: