BlackMATov/enum.hpp
1
0
Fork 0
mirror of https://github.com/BlackMATov/enum.hpp.git synced 2025-12-15 11:53:50 +07:00
Code Issues Packages Projects Releases Wiki Activity

external enum example

Browse Source
This commit is contained in:
Matvey Cherevko
2019-11-22 11:03:31 +07:00
parent c3e3b8bda2
commit 87af589725
2 changed files with 66 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

37
README.md
View File

@@ -148,6 +148,8 @@ namespace some_namespace
ENUM_HPP_REGISTER_TRAITS(color) ENUM_HPP_REGISTER_TRAITS(color)
int main() { int main() {
using color = some_namespace::color;
// to string // to string
static_assert(enum_hpp::to_string(color::red) == "red"); static_assert(enum_hpp::to_string(color::red) == "red");
@@ -158,6 +160,34 @@ int main() {
} }
``` ```
### Adapting external enums
```cpp
namespace external_ns
{
enum class external_enum : unsigned short {
a = 10,
b,
c = a + b
};
// should be in the same namespace
ENUM_HPP_TRAITS_DECL(external_enum,
(a)
(b)
(c))
}
ENUM_HPP_REGISTER_TRAITS(external_ns::external_enum)
int main() {
using ee = external_ns::external_enum;
static_assert(enum_hpp::to_string(ee::a) == "a");
static_assert(enum_hpp::from_string<ee>("c") == ee::c);
return 0;
}
```
## API ## API
### Enum traits ### Enum traits
@@ -170,11 +200,16 @@ ENUM_HPP_DECL(
/*fields*/) /*fields*/)
// declare enum class // declare enum class
ENUM_HPP_DECL( ENUM_HPP_CLASS_DECL(
/*enum_name*/, /*enum_name*/,
/*underlying_type*/, /*underlying_type*/,
/*fields*/) /*fields*/)
// declare only traits
ENUM_HPP_TRAITS_DECL(
/*enum_name*/,
/*fields*/)
struct /*enum_name*/_traits { struct /*enum_name*/_traits {
using underlying_type = /*underlying_type*/; using underlying_type = /*underlying_type*/;
static constexpr std::size_t size = /*field_count*/; static constexpr std::size_t size = /*field_count*/;

30
untests/enum_tests.cpp
View File

@@ -53,10 +53,25 @@ namespace some_namespace
(_181)(_182)(_183)(_184)(_185)(_186)(_187)(_188)(_189)(_190)(_191)(_192)(_193)(_194)(_195)(_196)(_197)(_198)(_199)(_200) (_181)(_182)(_183)(_184)(_185)(_186)(_187)(_188)(_189)(_190)(_191)(_192)(_193)(_194)(_195)(_196)(_197)(_198)(_199)(_200)
(_201)(_202)(_203)(_204)(_205)(_206)(_207)(_208)(_209)(_210)(_211)(_212)(_213)(_214)(_215)(_216)(_217)(_218)(_219)(_220) (_201)(_202)(_203)(_204)(_205)(_206)(_207)(_208)(_209)(_210)(_211)(_212)(_213)(_214)(_215)(_216)(_217)(_218)(_219)(_220)
(_221)(_222)(_223)(_224)(_225)(_226)(_227)(_228)(_229)(_230)(_231)(_232)(_233)(_234)(_235)(_236)(_237)(_238)(_239)(_240)) (_221)(_222)(_223)(_224)(_225)(_226)(_227)(_228)(_229)(_230)(_231)(_232)(_233)(_234)(_235)(_236)(_237)(_238)(_239)(_240))
namespace exns
{
enum class external_enum : unsigned short {
a = 10,
b,
c = a + b
};
ENUM_HPP_TRAITS_DECL(external_enum,
(a)
(b)
(c))
}
} }
ENUM_HPP_REGISTER_TRAITS(some_namespace::color) ENUM_HPP_REGISTER_TRAITS(some_namespace::color)
ENUM_HPP_REGISTER_TRAITS(some_namespace::numbers) ENUM_HPP_REGISTER_TRAITS(some_namespace::numbers)
ENUM_HPP_REGISTER_TRAITS(some_namespace::exns::external_enum)
TEST_CASE("enum") { TEST_CASE("enum") {
namespace sn = some_namespace; namespace sn = some_namespace;
@@ -375,3 +390,18 @@ TEST_CASE("enum") {
} }
} }
} }
TEST_CASE("external_enum") {
using ee = some_namespace::exns::external_enum;
STATIC_REQUIRE(std::is_same_v<enum_hpp::underlying_type<ee>, unsigned short>);
STATIC_REQUIRE(enum_hpp::size<ee>() == 3);
STATIC_REQUIRE(enum_hpp::names<ee>()[0] == "a");
STATIC_REQUIRE(enum_hpp::names<ee>()[2] == "c");
STATIC_REQUIRE(enum_hpp::values<ee>()[0] == ee::a);
STATIC_REQUIRE(enum_hpp::values<ee>()[2] == ee::c);
STATIC_REQUIRE(enum_hpp::to_string(ee::c) == "c");
STATIC_REQUIRE(enum_hpp::from_string<ee>("b") == ee::b);
}