[FIX] gcc8 warning for Pair<..., Pack> [-Wclass-memaccess]
[FIX] gcc8 warning for Pair<..., Pack> [-Wclass-memaccess]

/seqan-src/include/seqan/index/pipe_merger7.h:377:19: warning: ‘void* memcpy(void*, const void*, size_t)’ writing to an object of non-trivially copyable type ‘struct seqan::Pair<long unsigned int, long unsigned int, seqan::Tag<seqan::Pack_> >’; use copy-assignment or copy-initialization instead [-Wclass-memaccess]
             memcpy(&dst.i.i1, &src.i1, sizeof(T1));
             ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /seqan-src/include/seqan/basic/basic_aggregate.h:55:0,
                 from /seqan-src/include/seqan/basic.h:98,
                 from /seqan-src/tests/index/test_index_fm.cpp:35: /seqan-src/include/seqan/basic/pair_packed.h:76:8: note: ‘struct seqan::Pair<long unsigned int, long unsigned int, seqan::Tag<seqan::Pack_> >’ declared here
 struct Pair<T1, T2, Pack>
        ^~~~~~~~~~~~~~~~~~

xenigmax/seqan,xenigmax/seqan,xenigmax/seqan,xenigmax/seqan,xenigmax/seqan,xenigmax/seqan,xenigmax/seqan,xenigmax/seqan