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-rw-r--r--include/string.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/string.h b/include/string.h
index 4770d10..75e8558 100644
--- a/include/string.h
+++ b/include/string.h
@@ -63,7 +63,7 @@ void *memrchr(const void *, int, size_t) __pure;
int memcmp(const void *, const void *, size_t) __pure;
void *memcpy(void * __restrict, const void * __restrict, size_t);
#if __BSD_VISIBLE
-void *memmem(const void *, size_t, const void *, size_t);
+void *memmem(const void *, size_t, const void *, size_t) __pure;
#endif
void *memmove(void *, const void *, size_t);
void *memset(void *, int, size_t);
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