common: buffer::ptr::cmp() is a const function

Signed-off-by: David Zafman <david.zafman@inktank.com>

diff --git a/src/common/buffer.cc b/src/common/buffer.cc
index 5e57055b3ff15a540b20033da3c956f3c3b1ee94..eab91433aa9076936cb00ee0f1030694c17a9243 100644 (file)
--- a/src/common/buffer.cc
+++ b/src/common/buffer.cc
@@ -664,7 +664,7 @@ static uint32_t simple_spinlock_t buffer_debug_lock = SIMPLE_SPINLOCK_INITIALIZE
     return _raw->len - _len;
   }
 
-  int buffer::ptr::cmp(const ptr& o)
+  int buffer::ptr::cmp(const ptr& o) const
   {
     int l = _len < o._len ? _len : o._len;
     if (l) {

diff --git a/src/include/buffer.h b/src/include/buffer.h
index ae5d376f92221351dd663a3cb99c35f1fca52667..4c275cacae9e284ad780b256fbca84cfd3e8c352 100644 (file)
--- a/src/include/buffer.h
+++ b/src/include/buffer.h
@@ -208,7 +208,7 @@ public:
 
     unsigned wasted();
 
-    int cmp(const ptr& o);
+    int cmp(const ptr& o) const;
     bool is_zero() const;
 
     // modifiers