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-rw-r--r--doc/posix-functions/log1pl.texi4
1 files changed, 4 insertions, 0 deletions
diff --git a/doc/posix-functions/log1pl.texi b/doc/posix-functions/log1pl.texi
index 802c2e6f69..be81d60ed6 100644
--- a/doc/posix-functions/log1pl.texi
+++ b/doc/posix-functions/log1pl.texi
@@ -11,6 +11,10 @@ Portability problems fixed by either Gnulib module @code{log1pl} or @code{log1pl
@item
This function is missing on some platforms:
FreeBSD 6.0, NetBSD 9.0, OpenBSD 3.8, Minix 3.1.8, AIX 5.1, HP-UX 11, IRIX 6.5, Solaris 9, Cygwin 1.7.x, MSVC 9, Android 4.4.
+@item
+This function produces results which are accurate to only 16 digits on some
+platforms:
+musl libc 1.2.2/arm64, musl libc 1.2.2/s390x.
@end itemize
Portability problems fixed by Gnulib module @code{log1pl-ieee}:

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