mirror/magic_enum
1
0
Fork 0
mirror of https://github.com/Neargye/magic_enum.git synced 2026-01-10 23:44:29 +00:00
Code Activity

add tests constexpr_for

Browse source
This commit is contained in:
neargye 2021-10-09 02:22:59 +03:00
parent 0325167113
commit 018673a0a4
2 changed files with 40 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

22
test/test.cpp
View file

@ -973,3 +973,25 @@ TEST_CASE("cmp_less") {
REQUIRE(cmp_less(-1, false));
}
}
// from https://artificial-mind.net/blog/2020/10/31/constexpr-for
template <auto Start, auto End, auto Inc, class F>
constexpr void constexpr_for(F&& f) {
if constexpr (Start < End) {
f(std::integral_constant<decltype(Start), Start>());
constexpr_for<Start + Inc, End, Inc>(f);
}
}
template <typename E, E V>
struct Foo {};
TEST_CASE("constexpr_for") {
constexpr_for<0, magic_enum::enum_count<Color>(), 1>([](auto i) {
[[maybe_unused]] Foo<Color, magic_enum::enum_value<Color, i>()> bar{};
});
constexpr_for<0, magic_enum::enum_count<Numbers>(), 1>([](auto i) {
[[maybe_unused]] Foo<Numbers, magic_enum::enum_value<Numbers, i>()> bar{};
});
}

18
test/test_flags.cpp
View file

@ -690,3 +690,21 @@ TEST_CASE("bitwise_operators") {
#endif
}
}
// from https://artificial-mind.net/blog/2020/10/31/constexpr-for
template <auto Start, auto End, auto Inc, class F>
constexpr void constexpr_for(F&& f) {
if constexpr (Start < End) {
f(std::integral_constant<decltype(Start), Start>());
constexpr_for<Start + Inc, End, Inc>(f);
}
}
template <typename E, E V>
struct Foo {};
TEST_CASE("constexpr_for") {
constexpr_for<0, magic_enum::enum_count<Color>(), 1>([](auto i) {
[[maybe_unused]] Foo<Color, magic_enum::enum_value<Color, i>()> bar{};
});
}