From: grischka <grishka@gmx.de>
To: emacs-devel@gnu.org
Subject: enum may be signed
Date: Sat, 01 May 2010 17:47:16 +0200 [thread overview]
Message-ID: <4BDC4D04.1040102@gmx.de> (raw)
In git:2f2ce26ff273aadaf324ec599bf1dd1f67cab560 (Stefan Monnier)
+enum symbol_redirect
+{
+ SYMBOL_PLAINVAL = 4,
...
struct Lisp_Symbol
{
unsigned gcmarkbit : 1;
...
+ enum symbol_redirect redirect : 3;
Note that this breaks with compilers where enums can be signed (e.g. MSVC),
Because value 4 doesn't fit into 3 bits (signed), it is read as -4 and
breaks related switch statements (e.g. data.c:set_internal)
--- grischka
next reply other threads:[~2010-05-01 15:47 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-05-01 15:47 grischka [this message]
2010-05-01 17:56 ` enum may be signed Stefan Monnier
2010-05-01 18:37 ` Ken Raeburn
2010-05-01 18:51 ` grischka
2010-05-03 17:04 ` Tom Tromey
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