wallet: make KeypoolCountExternalKeys() const

This method returns the sum of the key pool sizes. It does no modification.

1 files changed, 2 insertions, 2 deletions

diff --git a/src/wallet/scriptpubkeyman.h b/src/wallet/scriptpubkeyman.h
index c667fbf57c..213084c523 100644
--- a/src/wallet/scriptpubkeyman.h
+++ b/src/wallet/scriptpubkeyman.h
@@ -196,7 +196,7 @@ public:
 
     virtual int64_t GetOldestKeyPoolTime() { return GetTime(); }
 
-    virtual size_t KeypoolCountExternalKeys() { return 0; }
+    virtual size_t KeypoolCountExternalKeys() const { return 0; }
     virtual unsigned int GetKeyPoolSize() const { return 0; }
 
     virtual int64_t GetTimeFirstKey() const { return 0; }
@@ -337,7 +337,7 @@ public:
     void RewriteDB() override;
 
     int64_t GetOldestKeyPoolTime() override;
-    size_t KeypoolCountExternalKeys() override;
+    size_t KeypoolCountExternalKeys() const override;
     unsigned int GetKeyPoolSize() const override;
 
     int64_t GetTimeFirstKey() const override;