“Practical C++17”

on YouTube ↗01h 01m

" summary

Porting a 25k-line header-only project, ChaiScript, to C++17 yields concrete wins and traps: class template deduction guides collapse dozens of overloads and extend support to every method signature with no LOC increase; GCC 7.2 shows ~1–2% runtime gains from noexcept optimizations and custom transparent comparators; emplace_back returning a reference gives tiny speedups; structured bindings risk RVO loss and moves; beware string_view dangling pointers when storing views of temporary strings.

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" chapters (12)

1. 0:00Introduction and context
2. 5:06Feature overview and polling
3. 19:17Noexcept and type systems
4. 20:59If init expressions
5. 25:21Nested namespaces
6. 28:00Class template type deduction
7. 34:19Structured bindings
8. 38:56Fold expressions
9. 41:24In-place back insertion
10. 42:11String view mechanics
11. 49:59If constexpr in practice
12. 54:08Deduction guides and wrap-up