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1. Bernie (codewiz@mstdn.io)'s status on Saturday, 28-May-2022 17:49:23 UTC Bernie

   Here's another way in which C++ sucks:
   https://godbolt.org/z/1v6qsW8vP

   After 30 years of professional C++ experience, I'm still confused by these the subtle difference between function overload resolution (which performs implicit conversion) and template argument deduction (which works with exact types).

   #cpp sucks #programming

   • Bernie (codewiz@mstdn.io)'s status on Saturday, 28-May-2022 17:52:32 UTC Bernie

     in reply to

     Before someone suggests circumventing the issue with a
     dynamically-sized std::span: the original code had two spans of different types, and I wanted to enforce them being the same size at the interface level:

     void decode(span<uint32_t, N> in, span<int32_t, N> out);

     A coworker suggested a clever solution. Can you guess it?

     #cpp #programming

   • Bernie (codewiz@mstdn.io)'s status on Monday, 30-May-2022 00:43:43 UTC Bernie

     in reply to

     • lord pthenq1

     @pthenq1 Not sure if the recently introduced const genetics would pull this off, though... Would it be possible to deduce the static size of 2 slices of different types and force them to be the same number of elements with a compile-time check?

   • lord pthenq1 (pthenq1@mastodon.la)'s status on Monday, 30-May-2022 00:43:44 UTC lord pthenq1

     in reply to

     @codewiz

     Rust or lotion and peaceeee