diff --git a/test/run-tests.sh b/test/run-tests.sh
index 9644bde4..e914114b 100755
--- a/test/run-tests.sh
+++ b/test/run-tests.sh
@@ -227,10 +227,12 @@ gcc  ,STL - Non-virtual messages,.,cmake -DCMAKE_C_COMPILER=gcc -DCMAKE_CXX_COMP
 gcc  ,STL - Force C++03         ,.,cmake -DCMAKE_C_COMPILER=gcc -DCMAKE_CXX_COMPILER=g++ -DNO_STL=OFF -DETL_USE_TYPE_TRAITS_BUILTINS=OFF -DETL_USER_DEFINED_TYPE_TRAITS=OFF -DETL_FORCE_TEST_CPP03_IMPLEMENTATION=ON  -DETL_OPTIMISATION=$opt -DETL_CXX_STANDARD=$cxx_standard -DETL_ENABLE_SANITIZER=$sanitize -DETL_MESSAGES_ARE_NOT_VIRTUAL=OFF ..
 gcc  ,No STL                    ,.,cmake -DCMAKE_C_COMPILER=gcc -DCMAKE_CXX_COMPILER=g++ -DNO_STL=ON  -DETL_USE_TYPE_TRAITS_BUILTINS=OFF -DETL_USER_DEFINED_TYPE_TRAITS=OFF -DETL_FORCE_TEST_CPP03_IMPLEMENTATION=OFF -DETL_OPTIMISATION=$opt -DETL_CXX_STANDARD=$cxx_standard -DETL_ENABLE_SANITIZER=$sanitize -DETL_MESSAGES_ARE_NOT_VIRTUAL=OFF ..
 gcc  ,No STL - Force C++03      ,.,cmake -DCMAKE_C_COMPILER=gcc -DCMAKE_CXX_COMPILER=g++ -DNO_STL=ON  -DETL_USE_TYPE_TRAITS_BUILTINS=OFF -DETL_USER_DEFINED_TYPE_TRAITS=OFF -DETL_FORCE_TEST_CPP03_IMPLEMENTATION=ON  -DETL_OPTIMISATION=$opt -DETL_CXX_STANDARD=$cxx_standard -DETL_ENABLE_SANITIZER=$sanitize -DETL_MESSAGES_ARE_NOT_VIRTUAL=OFF ..
+gcc  ,No STL - Builtin mem functions ,.,cmake -DCMAKE_C_COMPILER=gcc -DCMAKE_CXX_COMPILER=g++ -DNO_STL=ON  -DETL_USE_TYPE_TRAITS_BUILTINS=OFF -DETL_USER_DEFINED_TYPE_TRAITS=OFF -DETL_FORCE_TEST_CPP03_IMPLEMENTATION=OFF  -DETL_OPTIMISATION=$opt -DETL_CXX_STANDARD=$cxx_standard -DETL_ENABLE_SANITIZER=$sanitize -DETL_MESSAGES_ARE_NOT_VIRTUAL=OFF -DETL_USE_BUILTIN_MEM_FUNCTIONS=ON ..
 clang,STL                       ,.,cmake -DCMAKE_C_COMPILER=clang -DCMAKE_CXX_COMPILER=clang++ -DNO_STL=OFF -DETL_USE_TYPE_TRAITS_BUILTINS=OFF -DETL_USER_DEFINED_TYPE_TRAITS=OFF -DETL_FORCE_TEST_CPP03_IMPLEMENTATION=OFF -DETL_OPTIMISATION=$opt -DETL_CXX_STANDARD=$cxx_standard -DETL_ENABLE_SANITIZER=$sanitize -DETL_MESSAGES_ARE_NOT_VIRTUAL=OFF ..
 clang,STL - Force C++03         ,.,cmake -DCMAKE_C_COMPILER=clang -DCMAKE_CXX_COMPILER=clang++ -DNO_STL=OFF -DETL_USE_TYPE_TRAITS_BUILTINS=OFF -DETL_USER_DEFINED_TYPE_TRAITS=OFF -DETL_FORCE_TEST_CPP03_IMPLEMENTATION=ON  -DETL_OPTIMISATION=$opt -DETL_CXX_STANDARD=$cxx_standard -DETL_ENABLE_SANITIZER=$sanitize -DETL_MESSAGES_ARE_NOT_VIRTUAL=OFF ..
 clang,No STL                    ,.,cmake -DCMAKE_C_COMPILER=clang -DCMAKE_CXX_COMPILER=clang++ -DNO_STL=ON  -DETL_USE_TYPE_TRAITS_BUILTINS=OFF -DETL_USER_DEFINED_TYPE_TRAITS=OFF -DETL_FORCE_TEST_CPP03_IMPLEMENTATION=OFF -DETL_OPTIMISATION=$opt -DETL_CXX_STANDARD=$cxx_standard -DETL_ENABLE_SANITIZER=$sanitize -DETL_MESSAGES_ARE_NOT_VIRTUAL=OFF ..
 clang,No STL - Force C++03      ,.,cmake -DCMAKE_C_COMPILER=clang -DCMAKE_CXX_COMPILER=clang++ -DNO_STL=ON  -DETL_USE_TYPE_TRAITS_BUILTINS=OFF -DETL_USER_DEFINED_TYPE_TRAITS=OFF -DETL_FORCE_TEST_CPP03_IMPLEMENTATION=ON  -DETL_OPTIMISATION=$opt -DETL_CXX_STANDARD=$cxx_standard -DETL_ENABLE_SANITIZER=$sanitize -DETL_MESSAGES_ARE_NOT_VIRTUAL=OFF ..
+clang,No STL - Builtin mem functions ,.,cmake -DCMAKE_C_COMPILER=gcc -DCMAKE_CXX_COMPILER=g++ -DNO_STL=ON  -DETL_USE_TYPE_TRAITS_BUILTINS=OFF -DETL_USER_DEFINED_TYPE_TRAITS=OFF -DETL_FORCE_TEST_CPP03_IMPLEMENTATION=OFF  -DETL_OPTIMISATION=$opt -DETL_CXX_STANDARD=$cxx_standard -DETL_ENABLE_SANITIZER=$sanitize -DETL_MESSAGES_ARE_NOT_VIRTUAL=OFF -DETL_USE_BUILTIN_MEM_FUNCTIONS=ON ..
 gcc  ,Initializer list test     ,etl_initializer_list,cmake -DCMAKE_C_COMPILER=gcc   -DCMAKE_CXX_COMPILER=g++     -DETL_OPTIMISATION=$opt -DETL_CXX_STANDARD=$cxx_standard -DETL_ENABLE_SANITIZER=$sanitize ..
 clang,Initializer list test     ,etl_initializer_list,cmake -DCMAKE_C_COMPILER=clang -DCMAKE_CXX_COMPILER=clang++ -DETL_OPTIMISATION=$opt -DETL_CXX_STANDARD=$cxx_standard -DETL_ENABLE_SANITIZER=$sanitize ..
 gcc  ,Error macros 'log_errors' test,etl_error_handler/log_errors                              ,cmake -DCMAKE_C_COMPILER=gcc -DCMAKE_CXX_COMPILER=g++ -DETL_OPTIMISATION=$opt -DETL_CXX_STANDARD=$cxx_standard -DETL_ENABLE_SANITIZER=$sanitize ..