a number. This happens, for example with C<\o{}>, with no number between
the braces.
+=item Numeric format result too large
+
+(F) The length of the result of a numeric format supplied to sprintf()
+or printf() would have been too large for the underlying C function to
+report. This limit is typically 2GB.
+
=item Octal number > 037777777777 non-portable
(W portable) The octal number you specified is larger than 2**32-1
operators treat their operands as strings of bytes, and values beyond
0xFF are nonsensical in this context.
-This became fatal in Perl 5.28.
+Certain instances became fatal in Perl 5.28; others in perl 5.32.
=item Use of strings with code points over 0xFF as arguments to vec is forbidden