Allow the warning handling callback to be set to a custom callback

1 files changed, 5 insertions, 0 deletions

diff --git a/src/cppc4group.hpp b/src/cppc4group.hpp
index 7f51629..e263ca4 100644
--- a/src/cppc4group.hpp
+++ b/src/cppc4group.hpp
@@ -111,6 +111,9 @@ public:
 	using SetupCallback = bool(*)(void* const arg);
 	using WriteCallback = bool(*)(const void* const data, size_t const size, void* const arg);
 
+	// but a more practical variant here
+	using WarningCallback = void(*)(const std::string& message);
+
 	// these enums are just mapped to their C-counterparts internally
 	enum class TmpMemoryStrategy {
 		Memory,
@@ -130,6 +133,8 @@ public:
 	// and this for your own custom strategy
 	static void setTmpMemoryStrategy(const TmpMemoryCallback callback);
 
+	static void setWarningCallback(const WarningCallback callback);
+
 public:
 	// the constructor will automatically construct an internal CC4Group, so no new-equivalent method is needed
 	// may throw std::bad_alloc if the allocation and construction of the internal CC4Group object fails