Better logging function

Now it is possible to provide some data together with the logging function.
This is useful for example in C++, where I can now provide an arbitrary
callable object as data, and a simple wrapper function that call the
callable object as logging function.

1 files changed, 1 insertions, 1 deletions

diff --git a/cpp/nissy.h b/cpp/nissy.h
index ff74f12..db8ba5f 100644
--- a/cpp/nissy.h
+++ b/cpp/nissy.h
@@ -100,7 +100,7 @@ namespace nissy {
         };
 
         error count_moves(const std::string&);
-        void set_logger(void (*)(const char*));
+        void set_logger(void (*)(const char *, void *), void *);
 }
 
 #endif