X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=pod%2Fperldiag.pod;h=44b83ed64b6c19be6a8501cb9f10bd8828f9afa1;hb=bc82975d259d743626ad1b4a960b4b1f13c7a816;hp=3093e09afcb007620c5e21ed1c34e841cb4b7ad5;hpb=808ee47ef2a751e743c48b9742ba8610cfe8a497;p=p5sagit%2Fp5-mst-13.2.git

diff --git a/pod/perldiag.pod b/pod/perldiag.pod
index 3093e09..44b83ed 100644
--- a/pod/perldiag.pod
+++ b/pod/perldiag.pod
@@ -1076,19 +1076,13 @@ redefined subroutine while the old routine is running.  Go figure.
 (F) You tried to unshift an "unreal" array that can't be unshifted, such
 as the main Perl stack.
 
-=item Can't upgrade that kind of scalar
+=item Can't upgrade %s (%d) to %d
 
 (P) The internal sv_upgrade routine adds "members" to an SV, making it
 into a more specialized kind of SV.  The top several SV types are so
 specialized, however, that they cannot be interconverted.  This message
 indicates that such a conversion was attempted.
 
-=item Can't upgrade to undef
-
-(P) The undefined SV is the bottom of the totem pole, in the scheme of
-upgradability.  Upgrading to undef indicates an error in the code
-calling sv_upgrade.
-
 =item Can't use anonymous symbol table for method lookup
 
 (F) The internal routine that does method lookup was handed a symbol
@@ -1512,6 +1506,10 @@ subroutine or package before the current location.  You can use an empty
 (W misc) You used the obsolescent C<dump()> built-in function, without fully
 qualifying it as C<CORE::dump()>.  Maybe it's a typo.  See L<perlfunc/dump>.
 
+=item dump is not supported
+
+(F) Your machine doesn't support dump/undump.
+
 =item Duplicate free() ignored
 
 (S malloc) An internal routine called free() on something that had
@@ -1978,10 +1976,20 @@ transparently promotes all numbers to a floating point representation
 internally--subject to loss of precision errors in subsequent
 operations.
 
+=item Integer overflow in division
+
+(F) In the scope of the C<use integer;> pragma, division would have overflowed.
+This will happen if you attempt to divide the largest negative integer by -1,
+since the result cannot be represented as a signed integer on a two's complement
+system.  This division is trapped as a Perl-level exception because on some
+architectures the integer divide operation will trigger a CPU exception
+causing program exit, rather than merely returning a mathematically wrong
+answer.
+
 =item Integer overflow in format string for %s
 
-(F) The indexes and widths specified in the format string of printf()
-or sprintf() are too large.  The numbers must not overflow the size of
+(F) The indexes and widths specified in the format string of C<printf()>
+or C<sprintf()> are too large.  The numbers must not overflow the size of
 integers for your architecture.
 
 =item Integer overflow in version
@@ -4713,8 +4721,8 @@ the version number.
 
 =item Version string '%s' contains invalid data; ignoring: '%s'
 
-(W misc) The version string contains invalid characters, so it is
-being ignored.
+(W misc) The version string contains invalid characters at the end, which
+are being ignored.
 
 =item v-string in use/require is non-portable