3party/sqlpp11
0
0
Fork 0
mirror of https://github.com/rbock/sqlpp11.git synced 2024-11-15 20:31:16 +08:00
Code Issues Projects Releases Wiki Activity

Minor cleanup

Browse Source
This commit is contained in:
rbock 2015-02-24 08:09:17 +01:00
parent 57ceefbd0c
commit 8910220b6c
1 changed files with 1 additions and 17 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
include/sqlpp11/type_traits.h
View File

@ -51,23 +51,6 @@ namespace sqlpp
template<typename T>
using column_spec_can_be_null_t = typename detail::column_spec_can_be_null_impl<T>::type;
namespace tag
{
struct is_expression{};
}
namespace detail
{
template<typename T, typename Enable = void>
struct is_expression_impl { using type = std::false_type; };
template<typename T>
struct is_expression_impl<T, typename std::enable_if<
detail::is_element_of<tag::is_expression, typename T::_traits::_tags>::value
//and not detail::is_element_of<tag::contains_aggregate_function, typename T::_recursive_traits::_tags>::value FIXME: Needed here?
>::type> { using type = std::true_type; };
}
template<typename T>
using is_expression_t = typename detail::is_expression_impl<T>::type;
#define SQLPP_VALUE_TRAIT_GENERATOR(name) \
namespace tag\
{\
@ -96,6 +79,7 @@ namespace sqlpp
SQLPP_VALUE_TRAIT_GENERATOR(is_text)
SQLPP_VALUE_TRAIT_GENERATOR(is_wrapped_value)
SQLPP_VALUE_TRAIT_GENERATOR(is_selectable)
SQLPP_VALUE_TRAIT_GENERATOR(is_expression)
SQLPP_VALUE_TRAIT_GENERATOR(is_multi_expression)
SQLPP_VALUE_TRAIT_GENERATOR(is_alias)
SQLPP_VALUE_TRAIT_GENERATOR(is_select_flag)