Added dontoptimize pragma to zerokeymemory in feistel class

GhettoCrypt/Feistel.cpp

@@ -191,6 +191,13 @@ void GhettoCipher::Feistel::GenerateRoundKeys(const Block& seedKey)
     return;
 }
 
+// These pragmas only work for MSVC and g++, as far as i know. Beware!!!
+#if defined _WIN32 || defined _WIN64
+#pragma optimize("", off )
+#elif defined __GNUG__
+#pragma GCC push_options
+#pragma GCC optimize ("O0")
+#endif
 void GhettoCipher::Feistel::ZeroKeyMemory()
 {
     for (Block& key : roundKeys)
@@ -198,3 +205,8 @@ void GhettoCipher::Feistel::ZeroKeyMemory()
 
     return;
 }
+#if defined _WIN32 || defined _WIN64
+#pragma optimize("", on )
+#elif defined __GNUG__
+#pragma GCC pop_options
+#endif