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Add enum fusing function (#127)

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Pavel I. Kryukov 2022-02-10 20:58:59 +03:00 • committed by GitHub
parent 22242a613a
commit 1f8e29b140
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test/test.cpp
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@ -1014,4 +1014,44 @@ TEST_CASE("constexpr_for") {
});
}
static int switch_case_2d(Color color, Directions number)
{
switch (magic_enum::enum_fuse(color, number))
{
case magic_enum::enum_fuse(Color::RED, Directions::Up):
return 1;
case magic_enum::enum_fuse(Color::BLUE, Directions::Down):
return 2;
default:
return 0;
}
}
enum class Index { zero = 0, one = 1, two = 2 };
static int switch_case_3d(Color color, Directions number, Index index)
{
switch (magic_enum::enum_fuse(color, number, index))
{
case magic_enum::enum_fuse(Color::RED, Directions::Up, Index::zero):
return 1;
// model accidental removal of last index, must not match anything
case magic_enum::enum_fuse(Color::BLUE, Directions::Up):
return 2;
default:
return 0;
}
}
TEST_CASE("multdimensional-switch-case") {
REQUIRE(switch_case_2d(Color::RED, Directions::Up) == 1);
REQUIRE(switch_case_2d(Color::RED, Directions::Down) == 0);
REQUIRE(switch_case_2d(Color::BLUE, Directions::Up) == 0);
REQUIRE(switch_case_2d(Color::BLUE, Directions::Down) == 2);
REQUIRE(switch_case_3d(Color::RED, Directions::Up, Index::zero) == 1);
REQUIRE(switch_case_3d(Color::BLUE, Directions::Up, Index::zero) == 0);
REQUIRE(switch_case_3d(Color::BLUE, Directions::Up, Index::one) == 0);
REQUIRE(switch_case_3d(Color::BLUE, Directions::Up, Index::two) == 0);
}
#endif