enum.hpp File Reference

#include <algorithm>
#include <cassert>
#include <string>
#include <optional>

Go to the source code of this file.

Classes
class	mbgl::Enum< T >

Namespaces
	mbgl

Macros
#define	MBGL_DEFINE_ENUM(T, ...)

Macro Definition Documentation

MBGL_DEFINE_ENUM

#define MBGL_DEFINE_ENUM	(		T,
			...
	)

Value:

                                                                                   \
static const constexpr std::pair<const T, const char *> T##_names[] = __VA_ARGS__; \
                                                                                   \
template <>                                                                        \
const char * Enum<T>::toString(T t) {                                              \
    auto it = std::find_if(std::begin(T##_names), std::end(T##_names),             \
        [&] (const auto& v) { return t == v.first; });                             \
    assert(it != std::end(T##_names)); return it->second;                          \
}                                                                                  \
                                                                                   \
template <>                                                                        \
std::optional<T> Enum<T>::toEnum(const std::string& s) {                                \
    auto it = std::find_if(std::begin(T##_names), std::end(T##_names),             \
        [&] (const auto& v) { return s == v.second; });                            \
    return it == std::end(T##_names) ? std::optional<T>() : it->first;                  \
}

Definition at line 18 of file enum.hpp.