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-rw-r--r--src/libutil/hash.hh3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/libutil/hash.hh b/src/libutil/hash.hh
index 95629bc9e5ba..74ae51db3286 100644
--- a/src/libutil/hash.hh
+++ b/src/libutil/hash.hh
@@ -49,6 +49,9 @@ string printHash(const Hash & hash);
 /* Parse a hexadecimal representation of a hash code. */
 Hash parseHash(HashType ht, const string & s);
 
+/* Returns the length of a base-32 hash representation. */
+unsigned int hashLength32(const Hash & hash);
+
 /* Convert a hash to a base-32 representation. */
 string printHash32(const Hash & hash);