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Benoit Perrot authored
from Benoît Perrot <benoit@lrde.epita.fr> Introduce unique_strings. * src/misc/unique_string.hh, src/misc/unique_string.cc: Declare and define the string uniquifier. * src/misc/test-unique_string.cc: Test it. * src/misc/Makefile.am: Update accordingly. * src/Makefile.am: Link with libmisc.a. * src/inst/section.hh, src/inst/label.hh: Use misc::unique_string instead of std::string. * src/inst/label.cc: Empty it.
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