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38d790cac0
The code uses two mechanisms for generating random numbers: srand()/rand(), which is not thread-safe, and srandom()/random(), which is POSIX-specific. Here I add a util/random.cc module that centralizes these calls, and unifies some common usage patterns. If the implementation is not good enough, we can now change it in a single place. To keep things simple, this uses the portable srand()/rand() but protects them with a lock to avoid concurrency problems. The hard part was to keep the regression tests passing: they rely on fixed sequences of random numbers, so a small code change could break them very thoroughly. Util::rand(), for wide types like size_t, calls std::rand() not once but twice. This behaviour was generalized into utils::wide_rand() and friends. |
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| .. | ||
| Loader.h | ||
| LoaderCompact.cpp | ||
| LoaderCompact.h | ||
| LoaderFactory.cpp | ||
| LoaderFactory.h | ||
| LoaderHiero.cpp | ||
| LoaderHiero.h | ||
| LoaderStandard.cpp | ||
| LoaderStandard.h | ||
| PhraseDictionaryALSuffixArray.cpp | ||
| PhraseDictionaryALSuffixArray.h | ||
| PhraseDictionaryFuzzyMatch.cpp | ||
| PhraseDictionaryFuzzyMatch.h | ||
| PhraseDictionaryOnDisk.cpp | ||
| PhraseDictionaryOnDisk.h | ||
| Trie.cpp | ||
| Trie.h | ||
| UTrie.cpp | ||
| UTrie.h | ||
| UTrieNode.cpp | ||
| UTrieNode.h | ||