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remove now unused POSIX regex handling

    • Closed Issue created by Mark OLESEN @mark

    Finally have sufficient compiler support everywhere to remove the POSIX regex support and just use C++ regex.

    Previously had a transitional construct:

    // Newer compilers support regex directly
#if (_GLIBCXX_RELEASE >= 7) || (__clang_major__ >= 7)
typedef regExpCxx regExp;
#else
typedef regExpPosix regExp;
#endif

    which means that we have not actually been using the POSIX version for a while now. Can confirm this with the output from applications/test/regex1 which indicates this type of output:

    _GLIBCXX_RELEASE = 7
Foam::regExp uses C++11 regex
    Edited

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