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-rw-r--r--src/common/compat.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/common/compat.h b/src/common/compat.h
index c46446414f..bb88818d82 100644
--- a/src/common/compat.h
+++ b/src/common/compat.h
@@ -321,7 +321,7 @@ tor_memstr(const void *haystack, size_t hlen, const char *needle)
extern const uint32_t TOR_##name##_TABLE[]; \
static INLINE int TOR_##name(char c) { \
uint8_t u = c; \
- return !!(TOR_##name##_TABLE[(u >> 5) & 7] & (1 << (u & 31))); \
+ return !!(TOR_##name##_TABLE[(u >> 5) & 7] & (1u << (u & 31))); \
}
DECLARE_CTYPE_FN(ISALPHA)
DECLARE_CTYPE_FN(ISALNUM)