common: fix clang compilation

Signed-off-by: Mykola Golub <mgolub@mirantis.com>

diff --git a/src/common/config.cc b/src/common/config.cc
index 7f39ed0c8b78e5fc60948e2be55a09dcc3444b3f..45b00fca6881df8f9125e2e6e434a08ac1b5a1a3 100644 (file)
--- a/src/common/config.cc
+++ b/src/common/config.cc
@@ -107,13 +107,13 @@ struct md_config_t::option_##name##_t {     \
 namespace {
 
 template <typename T>
-typename std::enable_if<!std::is_constructible<T>::value,
+typename std::enable_if<!std::is_destructible<T>::value,
                         md_config_t::validator_t>::type create_validator() {
   return md_config_t::validator_t();
 }
 
 template <typename T>
-typename std::enable_if<std::is_constructible<T>::value,
+typename std::enable_if<std::is_destructible<T>::value,
                         md_config_t::validator_t>::type create_validator() {
   // if T is defined (and not just forward declared), it implies
   // that a validator function exists. use a dummy typed pointer to