1 files changed, 27 insertions, 1 deletions
diff --git a/src/cppc4group.hpp b/src/cppc4group.hpp
index 420893c..7f51629 100644
--- a/src/cppc4group.hpp
+++ b/src/cppc4group.hpp
@@ -14,6 +14,7 @@
 #include <optional>
 #include <cstdio>
 #include <functional>
+#include <type_traits>
 
 class CppC4Group {
 	// all C-related stuff is hidden from this header so it doesn't land in the precious C++-only code this might be used in...
@@ -111,12 +112,18 @@ public:
 	using WriteCallback = bool(*)(const void* const data, size_t const size, void* const arg);
 
 	// these enums are just mapped to their C-counterparts internally
-	enum TmpMemoryStrategy {
+	enum class TmpMemoryStrategy {
 		Memory,
 		File,
 		Auto
 	};
 
+	enum class AllowedEntryTypes {
+		File,
+		Directory,
+		All = File | Directory
+	};
+
 	// use this to set one of the predefined strategies
 	static void setTmpMemoryStrategy(const TmpMemoryStrategy strategy);
 
@@ -167,6 +174,8 @@ public:
 	bool deleteEntry(const std::string& path, const bool recursive = false);
 	bool renameEntry(const std::string& oldPath, const std::string& newPath);
 
+	bool addFromDisk(const std::string& path, const std::string& targetPath, const AllowedEntryTypes allowedEntryTypes = AllowedEntryTypes::All);
+
 	bool createDirectory(const std::string& path);
 
 	bool createFile(const std::string& path);
@@ -176,3 +185,20 @@ public:
 	// to get the child group out of the optional in case of success, construct a new CppC4Group with the move constructor: CppC4Group child{std::move(*optionalChild)};
 	std::optional<CppC4Group> openAsChild(const std::string& path);
 };
+
+inline bool operator&(CppC4Group::AllowedEntryTypes lhs, CppC4Group::AllowedEntryTypes rhs)
+{
+	using T = std::underlying_type_t <CppC4Group::AllowedEntryTypes>;
+	return static_cast<T>(lhs) & static_cast<T>(rhs);
+}
+
+inline CppC4Group::AllowedEntryTypes operator|(CppC4Group::AllowedEntryTypes lhs, CppC4Group::AllowedEntryTypes rhs)
+{
+	using T = std::underlying_type_t <CppC4Group::AllowedEntryTypes>;
+	return static_cast<CppC4Group::AllowedEntryTypes>(static_cast<T>(lhs) | static_cast<T>(rhs));
+}
+
+inline CppC4Group::AllowedEntryTypes& operator|=(CppC4Group::AllowedEntryTypes& lhs, CppC4Group::AllowedEntryTypes rhs)
+{
+	return lhs = lhs | rhs;
+}