include/buffer: fix constness of operator<< for error

Signed-off-by: John Spray <john.spray@redhat.com>

diff --git a/src/common/buffer.cc b/src/common/buffer.cc
index c29c81e29135c42c4ea6d94e8ca1e69a934fd691..f4642b83ea07c03f8052fa88334e755c10d9721f 100644 (file)
--- a/src/common/buffer.cc
+++ b/src/common/buffer.cc
@@ -1952,7 +1952,7 @@ std::ostream& operator<<(std::ostream& out, const buffer::list& bl) {
   return out;
 }
 
-std::ostream& operator<<(std::ostream& out, buffer::error& e)
+std::ostream& operator<<(std::ostream& out, const buffer::error& e)
 {
   return out << e.what();
 }

diff --git a/src/include/buffer.h b/src/include/buffer.h
index 74e67dbda6bc2c3824a094fa78bb8884bdd87db1..d7dbfe3f28bd1fa9178829dfdb130c05486229ae 100644 (file)
--- a/src/include/buffer.h
+++ b/src/include/buffer.h
@@ -562,8 +562,7 @@ std::ostream& operator<<(std::ostream& out, const buffer::ptr& bp);
 
 std::ostream& operator<<(std::ostream& out, const buffer::list& bl);
 
-
-std::ostream& operator<<(std::ostream& out, buffer::error& e);
+std::ostream& operator<<(std::ostream& out, const buffer::error& e);
 
 inline bufferhash& operator<<(bufferhash& l, bufferlist &r) {
   l.update(r);