change type to std::string

Author: SandrineP

src/wrapper/refs_wrapper.cpp

@@ -8,10 +8,9 @@ reference_wrapper::~reference_wrapper()
     p_resource=nullptr;
 }
 
-const char* reference_wrapper::get_ref_name(const repository_wrapper& rw)
+std::string reference_wrapper::get_ref_name(const repository_wrapper& rw)
 {
     reference_wrapper ref;
     throwIfError(git_repository_head(&(ref.p_resource), rw));
-    const char* ref_name = git_reference_shorthand(ref.p_resource);
-    return ref_name;
+    return git_reference_shorthand(ref.p_resource);
 }

src/wrapper/refs_wrapper.hpp

@@ -15,7 +15,7 @@ class reference_wrapper : public wrapper_base<git_reference>
     reference_wrapper(reference_wrapper&&) = default;
     reference_wrapper& operator=(reference_wrapper&&) = default;
 
-    static const char* get_ref_name(const repository_wrapper& repo);
+    static std::string get_ref_name(const repository_wrapper& repo);
 
 private: