Contains macros to define smart enumeration types. More...
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Classes | |
| struct | reactions::pow_enum::string_tpl< C > |
| String as a template of characters. More... | |
| struct | reactions::pow_enum::string_builder< lambda_str_type > |
| Helper struct to convert strings to templates of strings. More... | |
| struct | reactions::pow_enum::string_builder< lambda_str_type >::produce< indices > |
| struct | reactions::pow_enum::apply_range< count, meta_functor, indices > |
| Transform a template of characters into a string. More... | |
| struct | reactions::pow_enum::apply_range< 0, meta_functor, indices... > |
| Transform a template of characters into a string. More... | |
| struct | reactions::pow_enum::string_group< S > |
| Group of string templates. More... | |
Namespaces | |
| reactions::pow_enum | |
| Utilities to define smart enumeration types. | |
Macros | |
| #define | REACTIONS_POW_ENUM(enum_name, ...) |
| #define | REACTIONS_POW_ENUM_WITH_UNKNOWN(enum_name, ...) |
Functions | |
| template<class... Strings, char... C> | |
| constexpr auto | reactions::pow_enum::parse_string_impl (string_group< Strings... >, string_tpl< C... >, string_tpl<>) |
| Implementation of the function to parse a string. More... | |
| template<class... Strings, char... Cp, char C0, char... C> | |
| constexpr auto | reactions::pow_enum::parse_string_impl (string_group< Strings... >, string_tpl< Cp... >, string_tpl< C0, C... >) |
| Implementation of the function to parse a string. More... | |
| template<char... C> | |
| constexpr auto | reactions::pow_enum::parse_string (string_tpl< C... > s) |
| Parse a string template and return it as an array of strings. More... | |
Detailed Description
Contains macros to define smart enumeration types.
The macro REACTIONS_POW_ENUM_WITH_UNKNOWN is provided in this file, which defines a class containing an enumeration type, and several functions and constant objects to iterate over the enumeration values and convert/parse them to/from strings.
Macro Definition Documentation
◆ REACTIONS_POW_ENUM
| #define REACTIONS_POW_ENUM | ( | enum_name, | |
| ... | |||
| ) |
Value:
enum enum_name : int { __VA_ARGS__ }; \
\
struct enum_name##_properties { \
\
static constexpr std::size_t size = \
std::initializer_list{__VA_ARGS__}.size(); \
\
static constexpr enum_name list[size] = {__VA_ARGS__}; \
\
template <enum_name E, std::size_t I = 0> \
static constexpr auto index_impl() { \
static_assert(I < size); \
if constexpr (list[I] == E) \
return I; \
else \
return index_impl<E, I + 1>(); \
} \
\
template <enum_name E> static constexpr auto index() { \
return index_impl<E>(); \
} \
}
T size(T... args)
This macro defines a new class with the given name, which itself defines an enum and a series of elements to facilitate operations with them.
- enum_type: type of the enumeration
- size: number of elements defined
- list: elements as an array
◆ REACTIONS_POW_ENUM_WITH_UNKNOWN
| #define REACTIONS_POW_ENUM_WITH_UNKNOWN | ( | enum_name, | |
| ... | |||
| ) |
This macro defines a new class with the given name, which itself defines an enum and a series of elements to facilitate operations with them.
- enum_type: type of the enumeration
- size: number of elements defined
- list: elements as an array
- from_string: get the element associated to the given string (return unknown if not found)
- to_string: represent an element as a string
