Add new helper zap which zeros a vector, clears it, and then calls

shrink_to_fit to actually deallocate memory.

1 files changed, 12 insertions, 0 deletions

diff --git a/src/alloc/secmem.h b/src/alloc/secmem.h
index 537f0ef44..2f4d65f33 100644
--- a/src/alloc/secmem.h
+++ b/src/alloc/secmem.h
@@ -168,6 +168,18 @@ void zeroise(std::vector<T, Alloc>& vec)
    clear_mem(&vec[0], vec.size());
    }
 
+/**
+* Zeroise the values then free the memory
+* @param vec the vector to zeroise and free
+*/
+template<typename T, typename Alloc>
+void zap(std::vector<T, Alloc>& vec)
+   {
+   zeroise(vec);
+   vec.clear();
+   vec.shrink_to_fit();
+   }
+
 }
 
 #endif