promote< T > Class Template Reference

A struct for compile-time type promotion. More...

#include <adobe/conversion.hpp>

Public Types
using	type

Detailed Description

template<class T>
class adobe::promote< T >

Details

Type promotion is the operation of converting a value into another type without any loss of resolution as to the original value (lossless conversion). For example, type promotion is implicit in the language when one sets a double from a long. Further explicit type promotions are possible for user-defined types through template specializations of this struct. See adobe::value_t for a type that utilizes adobe::promote.

Note

char is not specified to promote to wchar_t as standard behavior. Without knowing the source or destination character encodings there is not enough information to do this type promotion correctly.

See Also

• adobe::static_name_t
• adobe::value_t

Standard Promotions

• The following promote to double:
  • short
  • unsigned short
  • int
  • unsigned int
  • long
  • unsigned long
  • float

Definition at line 21 of file conversion.hpp.

Member Typedef Documentation

type

template<class T>

using type

Type to which T can be promoted. Default is T itself.

Definition at line 22 of file conversion.hpp.