mike/biboumi
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Restore the is_one_of variable template

Browse Source
This commit is contained in:
louiz’
2018-01-25 02:22:19 +01:00
parent 3f85137265
commit e267512ad4
3 changed files with 15 additions and 12 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/database/row.hpp
+2 -2
View File
@@ -30,13 +30,13 @@ struct Row
} }
template <bool Coucou=true> template <bool Coucou=true>
void save(std::unique_ptr<DatabaseEngine>& db, typename std::enable_if<!is_one_of<Id, T...>::value && Coucou>::type* = nullptr) void save(std::unique_ptr<DatabaseEngine>& db, typename std::enable_if<!is_one_of<Id, T...> && Coucou>::type* = nullptr)
{ {
this->insert(*db); this->insert(*db);
} }
template <bool Coucou=true> template <bool Coucou=true>
void save(std::unique_ptr<DatabaseEngine>& db, typename std::enable_if<is_one_of<Id, T...>::value && Coucou>::type* = nullptr) void save(std::unique_ptr<DatabaseEngine>& db, typename std::enable_if<is_one_of<Id, T...> && Coucou>::type* = nullptr)
{ {
const Id& id = std::get<Id>(this->columns); const Id& id = std::get<Id>(this->columns);
if (id.value == Id::unset_value) if (id.value == Id::unset_value)
src/utils/is_one_of.hpp
+6 -3
View File
@@ -3,12 +3,15 @@
#include <type_traits> #include <type_traits>
template <typename...> template <typename...>
struct is_one_of { struct is_one_of_implem {
static constexpr bool value = false; static constexpr bool value = false;
}; };
template <typename F, typename S, typename... T> template <typename F, typename S, typename... T>
struct is_one_of<F, S, T...> { struct is_one_of_implem<F, S, T...> {
static constexpr bool value = static constexpr bool value =
std::is_same<F, S>::value || is_one_of<F, T...>::value; std::is_same<F, S>::value || is_one_of_implem<F, T...>::value;
}; };
template<typename... T>
constexpr bool is_one_of = is_one_of_implem<T...>::value;
tests/utils.cpp
+7 -7
View File
@@ -175,11 +175,11 @@ TEST_CASE("dirname")
TEST_CASE("is_in") TEST_CASE("is_in")
{ {
CHECK((is_one_of<int, float, std::string, int>::value) == true); CHECK((is_one_of<int, float, std::string, int>) == true);
CHECK((is_one_of<int, float, std::string>::value) == false); CHECK((is_one_of<int, float, std::string>) == false);
CHECK((is_one_of<int>::value) == false); CHECK((is_one_of<int>) == false);
CHECK((is_one_of<int, int>::value) == true); CHECK((is_one_of<int, int>) == true);
CHECK((is_one_of<bool, int>::value) == false); CHECK((is_one_of<bool, int>) == false);
CHECK((is_one_of<bool, bool>::value) == true); CHECK((is_one_of<bool, bool>) == true);
CHECK((is_one_of<bool, bool, bool, bool, bool, int>::value) == true); CHECK((is_one_of<bool, bool, bool, bool, bool, int>) == true);
} }