Uploaded image for project: 'Qt'
  1. Qt
  2. QTBUG-116079

As a user of Qt, I expect qfloat16 construction to be constexpr

XMLWordPrintable

    • Icon: User Story User Story
    • Resolution: Out of scope
    • Icon: P2: Important P2: Important
    • None
    • None
    • Core: Containers and Algorithms
    • None
    • c86cf385d (dev), 2d4db1bff (6.5), 3a9bbf235 (6.6)

      ... but it isn't:

      contexpr qfloat16 f16 = 42.f; // ERROR: not a constant expression

      I realize that the conversion depends on some tables, but if consteval or std::is_constant_evaluated() may allow to have an alternative implementation that is constexpr. Maybe an algorithmic one that would be too slow for runtime?

        No reviews matched the request. Check your Options in the drop-down menu of this sections header.

            thiago Thiago Macieira
            mmutz Marc Mutz
            Vladimir Minenko Vladimir Minenko
            Alex Blasche Alex Blasche
            Votes:
            0 Vote for this issue
            Watchers:
            2 Start watching this issue

              Created:
              Updated:
              Resolved: