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Hash : 46bdd627
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Date : 2020-09-13T18:40:08
dfa: avoid use of uninitialized constraint * lib/dfa.c (merge_nfa_state): Do not initialize the constraint to zero here. (dfaoptimize): Do it here instead, via xcalloc. This prevents the use of an uninitialized constraint by later code when ! (flags[i] & OPT_QUEUED) means merge_nfa_state was not called to initialize the constraint. Problem found by running 'valgrind src/grep -E '(^| )*(a|b)*(c|d)*( |$)' < /dev/null' on Ubuntu 18.04.5 x86-64.
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Please create and read the docs with $ cd doc $ make gnulib.html $ xdg-open gnulib.html or read the online manual at https://www.gnu.org/software/gnulib/manual/gnulib.html