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According to Paul Eggert on 7/28/2006 5:48 PM:
>>
>> "../../lib/regex_internal.h", line 714: warning: token-less macro argument
>
> This one is worth fixing, since the code does not conform to C89.
Fix checked in.
>> "../../lib/regexec.c", line 1412: warning: non-constant initializer: op "--"
>
> I don't understand this one. Here's the line in question:
>
> Idx num = --fs->num;
>
> and I assume Idx is size_t, which is a 32-bit unsigned integer, so this
> code should be perfectly fine C89. Am I missing something? It appears
> to me to be a compiler bug.
I don't have the actual C89 or C99 standards in front of me at the moment,
but this line in the C99 draft explains it:
6.7.8 Initialization
[#2] No initializer shall attempt to provide a value for an
object not contained within the entity being initialized.
I believe it is a gcc extension that allows you to change the value of an
unrelated variable inside an initializer. The workaround is trivial -
separate the assignment into a followon statement.
- --
Life is short - so eat dessert first!
Eric Blake [EMAIL PROTECTED]
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