Fix tag_compound and value

2 files changed, 3 insertions, 2 deletions

diff --git a/include/tag_compound.h b/include/tag_compound.h
index 51ca877a06..3750e8a557 100644
--- a/include/tag_compound.h
+++ b/include/tag_compound.h
@@ -62,7 +62,6 @@ public:
      * Else, a new uninitalized entry is created under this key.
      */
     value& operator[](const std::string& key);
-    const value& operator[](const std::string& key) const;
 
     /**
      * @brief Erases a tag from the compound
@@ -71,7 +70,7 @@ public:
     bool erase(const std::string& key);
 
     ///Returns true if the given key exists in the compound
-    bool has_key(const std::string& key);
+    bool has_key(const std::string& key) const;
 
     ///Returns the number of tags in the compound
     size_t size() const;
diff --git a/include/value.h b/include/value.h
index 2a9ecc0d1a..d55acf3c80 100644
--- a/include/value.h
+++ b/include/value.h
@@ -42,6 +42,8 @@ class tag_list;
 class value
 {
 public:
+    explicit value() {}
+
     //Movable but not (implicitly) copyable
     value(const value&) = delete;
     value(value&&) = default;