Peering Forward - C++’s Next Decade - Herb Sutter - CppCon 2024

[malor]

https://www.youtube.com/watch?v=FNi1-x4pojs&t=0s
https://github.com/CppCon/CppCon2024/blob/main/Presentations/Peering_Forward_Cpps_Next_Decade.pdf

• Big features in C++26:
  • reflection
  • safety ("parity with modern languages")
  • std::execution
  • contracts
• Reflection
  • Template metaprogramming (is_prime() example)
  • constexpr / consteval (conditionals, loops, dynamic memory allocations)
  • reflection & generation
  • EXAMPLE: command line parser
• Safety
  • software security (protects its assets) vs software safety (doesn't do unintended harm)
  • parity, not perfection
  • performance by default, safety always available --> safety by default, performance always available
  • type, bounds, initialization, lifetime safety
  • undefined behaviour --> well-defined error
  • EXAMPLE: uninitialized variables
  • more compile time programming + more checks ==> less undefined behaviour
• Simplicity
  • specify what, not how --> raises the level of abstraction
  • EXAMPLE: metaclass for interface
  • EXAMPLE: metaclasses in the box; regex
  • EXAMPLE: instrumented vector