On Mon, Apr 29, 2019 at 05:11:53PM +0200, Dan Čermák wrote:
> John Reiser <jreiser@xxxxxxxxxxxx> writes:
[..]
> > What is the nature of the incompatibilities, and what are specific
> > examples?
>
> We switched to from the POSIX regex library to <regex> as it should be
> provided by a C++11 compatible compiler. Unfortunately gcc 4.8.5 does
> not properly implement <regex> and it made a lot of tests fail. We have
> therefore switched to using the SCL gcc & clang compiler for now.
Yes, at least GCC 4.8/4.9 (with the then current libstdc++)
featured a severely broken <regex> (e.g. also on Fedora 19).
If it's just <regex> an alternative is to fallback to Boost regex
- e.g. like this:
#ifdef SOME_MACRO_THAT_SIGNALS_PROPER_REGEX_AVAILABILITY
#include <regex>
namespace re = std;
#else
#include <boost/regex.hpp>
namespace re = boost;
#endif
And then use re::regex re::regex_match etc. in your code.
Best regards
Georg
--
'Embrace change' (Barack Ob^W^WKent Beck)
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