5 POSIX specification:@* @url{https://pubs.opengroup.org/onlinepubs/9699919799/functions/round.html}
7 Gnulib module: round or round-ieee
9 Portability problems fixed by either Gnulib module @code{round} or @code{round-ieee}:
12 This function is missing on some platforms:
13 FreeBSD 5.2.1, OpenBSD 3.8, Minix 3.1.8, AIX 5.1, older IRIX 6.5, Solaris 9, MSVC 9.
15 This function is not declared on some platforms:
18 This functions returns a wrong result for @math{x = 1/2 - 2^-54}
23 Portability problems fixed by Gnulib module @code{round-ieee}:
26 This function returns a positive zero for an argument between @minus{}0.5 and 0
31 Portability problems not fixed by Gnulib: