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Segmentation fault occurs at line 361 in ac_da_trie.h when executing AhoCorasick::Build function.

Hello Contributor,
That case compile with G++ 4.6.3-1 and Gtest version .1.6.0. Please see below in case an error of define data type. I workaround using unsigned int replace with magic number on your code.

[ 11%] Built target brute_force_search_test [ 22%] Built target min_queue_test Scanning dependencies of target da_trie_test [ 33%] Building CXX object src/balgo/trie/CMakeFiles/da_trie_test.dir/da_trie_test.cpp.o Linking CXX executable ../../../../bin/da_trie_test [ 33%] Built target da_trie_test Scanning dependencies of target ternary_trie_test [ 44%] Building CXX object src/balgo/trie/CMakeFiles/ternary_trie_test.dir/ternary_trie_test.cpp.o Linking CXX executable ../../../../bin/ternary_trie_test [ 44%] Built target ternary_trie_test [ 55%] Built target trie_main [ 66%] Building CXX object src/balgo/trie/CMakeFiles/trie_traits_test.dir/trie_traits_test.cpp.o In file included from ~/balgo/src/balgo/trie/trie_traits_test.cpp:26:0: ~/gtest-1.6.0/include/gtest/gtest.h: In function ‘testing::AssertionResult testing::internal::CmpHelperEQ(const char*, const char*, const T1&, const T2&) [with T1 = int, T2 = long unsigned int]’: ~/gtest-1.6.0/include/gtest/gtest.h:1353:30: instantiated from ‘static testing::AssertionResult testing::internal::EqHelper<lhs_is_null_literal>::Compare(const char*, const char*, const T1&, const T2&) [with T1 = int, T2 = long unsigned int, bool lhs_is_null_literal = false]’ ~/balgo/src/balgo/trie/trie_traits_test.cpp:33:3: instantiated from here ~/gtest-1.6.0/include/gtest/gtest.h:1316:3: error: comparison between signed and unsigned integer expressions [-Werror=sign-compare]

Thank you,
R.Chatsiri