Re: Build issue utilizing Boost::regex

From: Brad Smith (brad_at_[hidden])
Date: 2021-05-29 18:52:29

On 5/28/2021 3:12 PM, John Maddock via Boost-users wrote:
> On 28/05/2021 17:41, Brad Smith via Boost-users wrote:
>> Hi,
>>
>> I am trying to upgrade from Boost 1.73 to Boost 1.76 and down to only 
>> one consumer left that will
>> not build. This appears to be an issue with Boost::regex.
>>
>> I noticed this in the Boost 1.76 release notes..
>>
>> "Regex is now header only except in C++03 mode."
>>
>> Clang defaults to C++14, but I noticed BOOST_REGEX_CXX03 is defined. 
>> The project does not
>> specify a particular C++ version so it should be using C++14.
>
> Are you defining BOOST_REGEX_RECURSIVE?  That would force it into 
> legacy-mode.

I do not see that anywhere in the project in question and checking to 
see if that is defined
it does not appear to be the case.

>>
>> The functions below exist in the Boost 1.73 Boost::regex library but 
>> not in the 1.76
>> library.
>
> Hmm, that's strange, do you have a test case?  We do test C++03 
> legacy mode in CI, so this should all still be working, plus nothing 
> should actually have changed in those classes compared to 1.73.

No. I can give you access to my system if you want to take a look around.