Albrecht Schlosser wrote:
> Michael Sweet wrote:
>> Albrecht Schlosser wrote:
>>> matthiasm wrote:
>>>>
>>>> On 19.10.2008, at 13:56, imacarthur wrote:
>>>>> I'm always a bit hazy on the whole "what changes affect the ABI"
>>>>> thing, but I notice this change has been committed against 1.1.x
>>>>> (1.1.10) svn:
>>>>>
>>>>> - Fl_Group::clip_children() is now public (STR #2017)
>>>>>
>>>>> Is that a safe thing? Can we do that without breaking the 1.1. ABI?
>>>>
>>>>
>>>> I have done a little research before we decided for the change and 
>>>> have not found a C++ compiler that encodes "public" attributes in 
>>>> the decorated method name. This is not to say that there is not some 
>>>> exotic compiler that does, but at least for the current gcc and 
>>>> VisualC, these attributes seem to only exist in the header files 
>>>> (and not changing the ABI).
>>>>
>>>> I hope... ;-)
>>>
>>> Meanwhile I found a reference that says that "some compilers mangle 
>>> the access rights into the function name":
>>>
>>> <http://tldp.org/HOWTO/Program-Library-HOWTO/shared-libraries.html#AEN135> 
>>>
>>>
>>> I don't know how old this may be, or how many compilers might do this.
>>>
>>> Would this be a reason to revert the change for 1.1?
>>>
>>> Taken that most FLTK applications will be linked static, maybe not.
>>
>> Again, the previous clip_children wasn't even available outside the
>> library, so ABI concerns are not an issue.
> 
> I'm sorry to insist, but it was protected before (not private, as you 
> assumed). But it was and is implemented in the header file, so it could 
> have been inlined by the compiler. Does this change anything for us?

Possibly, however since it was an inline method it shouldn't pose any
problems.

-- 
______________________________________________________________________
Michael Sweet, Easy Software Products           mike at easysw dot com
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