Arne,
Thank you for your quick reply but I don't think this solves my problem.
It only solves it for the proof-of-concept which I made to proof, the
bug in Poco regex functionality.
Our system does not even link against libPCRE but uses Poco. If I change
the proof-of-concept to a Poco only solution (see attachment) I still
have the problem of a non functioning regex.
$ g++ regex.cc -lPocoFoundation
$ ./a.out
Poco 0x01030600 on Linux 4.2.0-35-generic @ x86_64
Poco match 1234567890 to pattern ^[0-9]{10} matches? no
Poco match 123456789 to pattern ^[0-9]{10} matches? no
$ ldd ./a.out
linux-vdso.so.1 => (0x00007ffe94177000)
libPocoFoundation.so.9 => /usr/lib/libPocoFoundation.so.9
(0x00007f14dd744000)
libstdc++.so.6 => /usr/lib/x86_64-linux-gnu/libstdc++.so.6
(0x00007f14dd440000)
libgcc_s.so.1 => /lib/x86_64-linux-gnu/libgcc_s.so.1
(0x00007f14dd229000)
libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f14dce64000)
libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0
(0x00007f14dcc46000)
libpcre.so.3 => /lib/x86_64-linux-gnu/libpcre.so.3 (0x00007f14dca07000)
libz.so.1 => /lib/x86_64-linux-gnu/libz.so.1 (0x00007f14dc7ee000)
libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f14dc5ea000)
librt.so.1 => /lib/x86_64-linux-gnu/librt.so.1 (0x00007f14dc3e1000)
libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f14dc0db000)
/lib64/ld-linux-x86-64.so.2 (0x000055cbc9c93000)
$ LD_PRELOAD=/lib/x86_64-linux-gnu/libpcre.so.3 ./a.out
Poco 0x01030600 on Linux 4.2.0-35-generic @ x86_64
Poco match 1234567890 to pattern ^[0-9]{10} matches? yes
Poco match 123456789 to pattern ^[0-9]{10} matches? no
$ LD_PRELOAD=/lib/x86_64-linux-gnu/libpcre.so.3 ldd ./a.out
linux-vdso.so.1 => (0x00007ffed2c4f000)
/lib/x86_64-linux-gnu/libpcre.so.3 (0x00007f34efa89000)
libPocoFoundation.so.9 => /usr/lib/libPocoFoundation.so.9
(0x00007f34ef722000)
libstdc++.so.6 => /usr/lib/x86_64-linux-gnu/libstdc++.so.6
(0x00007f34ef41d000)
libgcc_s.so.1 => /lib/x86_64-linux-gnu/libgcc_s.so.1
(0x00007f34ef207000)
libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f34eee42000)
libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0
(0x00007f34eec23000)
libz.so.1 => /lib/x86_64-linux-gnu/libz.so.1 (0x00007f34eea0a000)
libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f34ee806000)
librt.so.1 => /lib/x86_64-linux-gnu/librt.so.1 (0x00007f34ee5fd000)
libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f34ee2f7000)
/lib64/ld-linux-x86-64.so.2 (0x0000564cbde41000)
** Attachment added: "regex.cc"
https://bugs.launchpad.net/ubuntu/+source/pcre3/+bug/1361610/+attachment/4669408/+files/regex.cc
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https://bugs.launchpad.net/bugs/1361610
Title:
libPCRE3 8.31 regex matching is not working
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