Rumburak

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Rumburak has asked 23 questions and find answers to 19 problems.

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Rumburak questions

Why does decltype return type fail for recursive template, while return type deduction works just fine?
Which substitution failures are not allowed in requires clauses?
Comparing two constexpr pointers is not constexpr?
Alignment of multiple CRTP base classes
gcc vs. clang, msvc and icc: Is this function call ambiguous?
How to test C++ modules with godbolt (compiler explorer)?
Should decltype(foo(1)) instantiate the constexpr function template foo?
When is std::string_view::operator== really constexpr?
Is the address of a std::optional's value stable?
Clang and GCC vs MSVC and ICC: Is a static_assert in the copy/move constructor required to work, if copy/move elision could apply too?

Rumburak answers

check variadic templates parameters for uniqueness
Visibility of member functions in a CRTP class
Compose callable object
How to create a sorted mapping integer index with templates
What is the most compact way to extract the template arguments of a class and iterate over them?
Can I access a static local while it is being constructed in C++?
Can I return a temporary piped to a range operation?
How to rewrite this code without using boost?
Forwarding cv-ref-qualifier for member functions
Ensure at compile time that a method is called in exactly one place