forked from enlightenment/efl
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
93 lines
1.7 KiB
93 lines
1.7 KiB
#ifndef _EINA_TYPE_TRAITS_HH |
|
#define _EINA_TYPE_TRAITS_HH |
|
|
|
#include <type_traits> |
|
|
|
#include <string> |
|
#include <vector> |
|
|
|
/** |
|
* @addtogroup Eina_Cxx_Data_Types_Group |
|
* |
|
* @{ |
|
*/ |
|
|
|
namespace efl { namespace eina { |
|
|
|
/** |
|
* @internal |
|
* |
|
* @{ |
|
*/ |
|
|
|
using std::enable_if; |
|
using std::is_integral; |
|
using std::is_pod; |
|
using std::is_const; |
|
using std::remove_cv; |
|
using std::true_type; |
|
using std::false_type; |
|
using std::remove_pointer; |
|
using std::remove_reference; |
|
|
|
template <typename T> |
|
struct indirect_is_contiguous_iterator : false_type |
|
{}; |
|
template <> |
|
struct indirect_is_contiguous_iterator<std::vector<char>::iterator> : std::true_type |
|
{}; |
|
template <> |
|
struct indirect_is_contiguous_iterator<std::vector<char>::const_iterator> : std::true_type |
|
{}; |
|
|
|
template <typename T, typename Enable = void> |
|
struct is_contiguous_iterator : indirect_is_contiguous_iterator<T> {}; |
|
template <> |
|
struct is_contiguous_iterator<std::string::const_iterator> : true_type {}; |
|
template <> |
|
struct is_contiguous_iterator<std::string::iterator> : true_type {}; |
|
|
|
template <bool, typename T, typename F> |
|
struct if_c |
|
{ |
|
typedef T type; |
|
}; |
|
|
|
template <typename T, typename F> |
|
struct if_c<false, T, F> |
|
{ |
|
typedef F type; |
|
}; |
|
|
|
template <typename U, typename T, typename F> |
|
struct if_ : if_c<U::value, T, F> |
|
{ |
|
}; |
|
|
|
template <typename T> |
|
struct container_value_type |
|
{ |
|
typedef typename std::conditional< |
|
std::is_void<T>::value |
|
, std::add_pointer<T>, std::remove_reference<T>>::type::type type; |
|
}; |
|
|
|
template <typename T> |
|
struct nonconst_container_value_type |
|
{ |
|
typedef typename std::conditional< |
|
std::is_void<T>::value |
|
, std::add_pointer<T>, std::remove_cv<typename std::remove_reference<T>::type>>::type::type type; |
|
}; |
|
|
|
/** |
|
* @} |
|
*/ |
|
|
|
} } |
|
|
|
/** |
|
* @} |
|
*/ |
|
|
|
#endif
|
|
|