changes since 5.7.0) this section is cumulative containing known
problems for all the 5.7 releases.
-=head2 AIX vac 5.0.0.0 May Produce Buggy Code For Perl
+=head2 AIX
+
+=over 4
+
+=item *
+
+If Perl is configured to use long doubles the op/int subtests 13 and
+14 and the ext/POSIX subtest 14 may fail.
+
+=item *
+
+If Perl is configured to use threads the op/magic subtest 28 may fail.
+
+=item *
+
+vac 5.0.0.0 May Produce Buggy Code For Perl
The AIX C compiler vac version 5.0.0.0 may produce buggy code,
resulting in few random tests failing, but when the failing tests
vac version 5.0.1.0, that has been known to compile Perl correctly.
"lslpp -L|grep vac.C" will tell you the vac version.
+=back
+
=head2 lib/ftmp-security tests warn 'system possibly insecure'
Don't panic. Read INSTALL 'make test' section instead.
-=head2 lib/io_multihomed Fails In LP64-Configured HP-UX
+=head Cygwin intermittent failures of lib/Memoize/t/expire_file 11 and 12
+
+The subtests 11 and 12 sometimes fail and sometimes work.
+
+=head2 HP-UX lib/io_multihomed Fails When LP64-Configur
The lib/io_multihomed test may hang in HP-UX if Perl has been
configured to be 64-bit. Because other 64-bit platforms do not hang in
test attempts to create and connect to "multihomed" sockets (sockets
which have multiple IP addresses).
-=head2 Test lib/posix Subtest 9 Fails In LP64-Configured HP-UX
+=head2 HP-UX lib/posix Subtest 9 Fails When LP64-Configured
If perl is configured with -Duse64bitall, the successful result of the
subtest 10 of lib/posix may arrive before the successful result of the
No known fix.
-=head2 ext/POSIX/sigaction test 13 on VMS
-
-The test is known to fail; whether it's because of VMS of because
-of faulty test is not known.
-
=head2 op/sprintf tests 129 and 130
The op/sprintf tests 129 and 130 are known to fail on some platforms.
lib/autouse.t 4
t/lib/thr5005.t 19-20
-=head2 Numerous numerical test failures on UNICOS
+=head2 UNICOS
+
+=over 4
+
+=item *
+
+ext/POSIX/sigaction subtests 6 and 13 may fail.
+
+=item *
+
+lib/ExtUtils may spuriously claim that subtest 28 failed,
+which is interesting since the test only has 27 tests.
+
+=item *
+
+Numerous numerical test failures
op/numconvert 209,210,217,218
+ op/override 7
ext/Time/HiRes/HiRes 9
lib/Math/BigInt/t/bigintpm 1145
lib/Math/Trig 25
These tests fail because of yet unresolved floating point inaccuracies.
-=head2 ext/IPC/SysV/t/sem test 8 on UNICOS/mk
+=back
+
+=head2 UNICOS/mk ext/IPC/SysV/t/sem test 8
No known fix.
+=head2 UTS
+
+Many floating point inaccuracies:
+
+ op/numconvert 511,657,658,659,665-667,831,991,1151
+ op/pack 10,22,149,156
+ op/sprintf 8,10,13,102-107,134-135,146-153,159-162
+ lib/Math/BigInt/bigintpm 1145,1183
+ lib/Math/Complex 250,257,514,521,722-724,
+ 934,935,945,949,955,956,975,976
+ ext/POSIX/POSIX 14
+
=head2 Localising a Tied Variable Leaks Memory
use Tie::Hash;
The compiler suite is slowly getting better but is nowhere near
working order yet.
+=head2 The Long Double Support is Still Experimental
+
+The ability to configure Perl's numbers to use "long doubles",
+floating point numbers of hopefully better accuracy, is still
+experimental. The implementations of long doubles are not yet
+widespread and the existing implementations are not quite mature
+or standardised, therefore trying to support them is a rare
+and moving target. The gain of more precision may also be offset
+by slowdown in computations (more bits to move around, and the
+operations are more likely to be executed by less optimised
+libraries).
+
=head1 Reporting Bugs
If you find what you think is a bug, you might check the articles
projects / p5sagit/p5-mst-13.2.git / commitdiff