cpp_tip_of_the_week: A repository from kris-jusiak

C++ Tip of The Week

Your weekly dose of modern C++ challenge (Release every Sunday).

How to contribute/add a solution?
- Contributions are always very much appreciated. Just create a Pull Request with your solution.

Tips

[214] - Did you know about variadic aggregate initialization?
[213] - Did you know that mapping types to values is a simple way to transition from compile-time to run-time space?
[212] - Did you know that lambdas are const by default but can be mutable and keep state?
[211] - Did you know about C++2X Pattern Matching proposal?
[210] - Did you know about Design By Introspection?
[209] - Did you know about Policy Based Design?
[208] - Did you know that default template arguments can be explored with template template arguments?
[207] - Did you know about the proposal to add constexpr function parameters?
[206] - Did you know about proposal to add support for recursive lambdas?
[205] - Did you know that C++20 std::to_array supports creating from string literals?
[204] - Did you know that you can implement a compile-time map with C++?
[203] - Did you know that in C++ char, signed char and unsigned char are 3 different types?
[202] - Did you know that C++20 added Using Enum which introduces the enumerator names of the named enumeration as if by a using-declaration for each enumerator?
[201] - Did you know that sizeof operator can be used for efficient math computation?
[200] - Did you know that C++23 added is_scoped_enum type trait to detect whether an enum is scoped?
[199] - Did you know about proposal to introduce constexpr ternary operator?
[198] - Did you know about different ways of iterating over objects?
[197] - Did you know that Lambdas in Unevaluated Context combined with Template Constraints (Concepts) can be used with types?
[196] - Did you know that Lambdas in Unevaluated Context combined with Immediately Invoked Function Expressions (IIEF) can be used to simplify Template Meta-Programming?
[195] - Did you know that C++20 added support for [[no_unique_address]] attribute?
[194] - Did you know about C++23 proposal to add views::enumerate?
[193] - Did you know that C++20 added support for constexpr new?
[192] - Did you know about std::expected proposal for error handling?
[191] - Did you know that expression evaluation order is not specified?
[190] - Did you know that C++20 added ostream_joiner that writes successive objects into the basic_ostream separated by a delimiter?
[189] - Did you know that Compile Time Regular Expressions support extracting matches?
[188] - Did you know about proposal to add Compile Time Regular Expressions?
[187] - Did you know that C++17 made exception specifications be part of the type system?
[186] - Did you know Non-Type Template Parameters (NTTP) with User-Defined Literals (UDL) can be used to get compile-time strings?
[185] - Did you know about the proposal to make printf compile-time safe and with named arguments?
[184] - Did you know that you can customize formatter for your classes with std::format?
[183] - Did you know that Formatted output has been accepted into C++20?
[182] - Did you know about the proposal to add Non-terminal variadic template parameters?

Did you know about C++20 make_unique_for_overwrite?
Did you know aboutproposal to allow floating-points as non-typetemplate parameters (NTTP)?
Did you know about std::rank/std::rank_v type_trait to get the rank?
Did you know that C++20 added std::destroying_delete?
Did you know about C++ allows to pass Pointer To Member Function?
Did you know that C++20 added Class Types in Non-Type Template
Did you that C++ introduced std::to_address (Utility to convert a
Did you that you about proposal to make std::type_info constexpr?
Did you that you that C++20 added ranges?
Did you know that Ranges will be added to C++20 as an STL improvement?
Did you that you that C++20 added functions for safe integral
Did you that you boost::mp11 allows meta-functions to be used with
Did you that you C++ concepts can be used to constraint functions
Did you that you can create anonymous structs with different types in
Did you know that C++17 added std::forward_as_tuple?
Did you know that C++20 added std::is_corresponding_member?
Did you know that C++20 added shift_left, shift_right algorithms?
Did you know that C++20 added concepts library?
Did you know that C++20 added jthread which can be interrupted?
Did you know about C++23 proposal for a type trait to detectection?
Did you know about C++2a proposal - Universal Template Parameters (UTP) which would allow to unify TMP with types and values?
Did you know that C++20 added Class Types in Non-Type Template Parameters
Did you know that about GNU extension – Statement Expressions – available
Did you know that with C++2a getting an enum name in a standard/compatible
Did you know that C++20 extended make_shared to support arrays?
Did you know that C++17 fold expressions might be applied to make
Did you know that C++20 added span view over contiguous containers?
Did you know that C++20 added Three-way comparison (aka spaceship
Did you know that C++20 added Class Types in Non-Type Template
Did you know that C++20 added std::bit_cast?
Did you know that C++20 added std::to_array?
Did you know about std::embed proposal for C++23?
Did you know that C++20 modules have support for private sections?
Did you know that C++20 added type_traits to verify whether array is
Did you know that C++20 made std::for_each constexpr?
Did you know that order of fields in tuple/struct may impact the sizeof
Did you know that C++17 added Class Template Class Deduction (C++20
Did you know that C++20’s added bind_front to simplify writing higher
Did you know that C++20’s requires expression (added by concepts) can be
Did you know that C++20 added Integral power-of-2 operations in
Did you know that C++20 added String Prefix and Suffix Checking?
Did you know that C++20 adopted source location to access
Did you know that with C++11 auto trailing return type Substitution
Did you know that with C++17 class template argument deduction can be
Did you know that C++20 added support for allowing pack expansion in
Did you know that expansion statements (also known as for... and/or
Did you know that C++20 is going to add text formatting library (based
Did you know that with C++20 you can capture reference of structured
Did you know that you can ensure that NON-constexpr evaluation by simply
Did you know that with C++ you create a compile-time unique string type
Did you know that with C++ you can reflect on type name using nonstandard PRETTY_FUNCTION extensions (should be possible with source.location
Did you know that C++20 unified template<class…> class and
Did you know that with C++20 and lambdas in unevaluated context you can
Did you know that C++17 added std::invoke?
Did you know that C++20 added template-parameter-list for generic
Did you know that you can overload on derived types?
Did you know that with modern C++ it’s possible to implement well
Did you that C++20 unfortunately won’t have function traits?
Did you know that template template types can be used for type traits?
Did you know that C++20 won’t have a packed attribute which, if applied,
Did you know that C++20 unfortunately won’t have static reflection?
Did you know that C++20 added support for a new type_trait
Did you know that C++20 will allow Virtual Function Calls in Constant
Did you know that C++20 will add [[no_unique_address]] attribute?
Did you know that C++20 will add support for checking whether a call
Did you know that C++20 will add support for ‘Familiar template syntax
Did you know that C++20 will add support for ‘Class Types in Non-Type
Did you know that with DI you can write your own extensions?
Did you know that with DI you can restrict types which can be injected?
Did you know that dependency injection in C++ can be automated?
Did you know you can implement named parameters using modern C++?
Did you know that with modern C++ you can make TMP almost without <>?
Did you know about Boost.MP11 library for Template Meta-Programming
Did you know that Ranges will be added to C++20 as an STL improvement?
Did you know Boost.Hana library (Your standard library for
Did you know that C++17 added support for auto with templates (non-type template parameters)?
Did you know that C++17 added support for constexpr if?
Did you know that constexpr if can help with suppor(ng diﬀerent API’s?
Did you know that C++17 added init-statements for if and switch?
Did you know that C++17 added support for fold expressions?
Did you know that C++17 introduced Parallel STL? (Another reason not to write raw loops?)
Did you know about trigraphs? Don’t worry if you didn’t because from C++17 trapgrahs are DEPRACTED
Did you know that C++17 introduced a few new general ajributes and that one of them is [[nodiscard]]?
Did you know that C++17 added [[maybe_unused]] general ajribute?
Did you know that C++17 introduced [[fallthrough]] ajribute? It indicates that the fall through from the
Did you know that excep(on speciﬁca(ons is part of the type system since C++17?
Did you know about new C++17 SFINAE helpers: std::is_detected and std::void_t?
Did you know that it’s possible to use SFINAE in order to detect whether a func(on is constexpr?
Did you know that pseudo-random numbers might be generated at compile (me?
Did you know that you can verify whether a template is instan(ated within the transla(on unit?
Did you know that C++17 added support for auto with templates (non-type template
Did you know that C++17 added support for constexpr if?
Did you know that constexpr if can help with supporBng diﬀerent API’s?
Did you know that C++17 added init-statements for if and switch?
Did you know that C++17 added support for fold expressions?
Did you know that C++17 introduced Parallel STL? (Another reason not to write raw loops?)
Did you know about trigraphs? Don’t worry if you didn’t because from C++17 trapgrahs are
Did you know that C++17 introduced a few new general a6ributes and that one of them is
Did you know that C++17 added [[maybe_unused]] general a6ribute?
Did you know that C++17 introduced [[fallthrough]] a6ribute? It indicates that the fall
Did you know that exception specification is part of the type system since C++17?
Did you know about new C++17 SFINAE helpers: std::is_detected and std::void_t?
Did you know that it’s possible to use SFINAE in order to detect whether a function is
Did you know that pseudo-random numbers might be generated at compile Bme?
Did you know that you can verify whether a template is instanBated within the
Did you know that C++17 added support for auto with templates (non-type template
Did you know that C++17 added support for constexpr if?
Did you know that constexpr if can help with supporBng diﬀerent API’s?
Did you know that C++17 added init-statements for if and switch?
Did you know that C++17 added support for fold expressions?
Did you know that C++17 introduced Parallel STL? (Another reason not to write raw loops?)
Did you know about trigraphs? Don’t worry if you didn’t because from C++17 trapgrahs are
Did you know that C++17 introduced a few new general a6ributes and that one of them is
Did you know that C++17 added [[maybe_unused]] general a6ribute?
Did you know that C++17 introduced [[fallthrough]] a6ribute? It indicates that the fall
Did you know about new C++17 SFINAE helpers: std::is_detected and std::void_t?
Did you know that it’s possible to use SFINAE in order to detect whether a funcBon is
Did you know that pseudo-random numbers might be generated at compile Bme?
Did you know that you can verify whether a template is instanBated within the
Did you know that C++17 added support for auto with templates (non-type template
Did you know that C++17 added support for constexpr if?
Did you know that constexpr if can help with supporort for different API’s?
Did you know that C++17 added init-statements for if and switch?
Did you know that C++17 added support for fold expressions?
Did you know that C++17 introduced Parallel STL? (Another reason not to write raw loops?)
Did you know about trigraphs? Don’t worry if you didn’t because from C++17 trapgrahs are
Did you know that C++17 introduced a few new general a6ributes and that one of them is
Did you know that C++17 added [[maybe_unused]] general a6ribute?
Did you know that C++17 introduced [[fallthrough]] a6ribute? It indicates that the fall
Did you know that excepBon speciﬁcaBons is part of the type system since C++17?
Did you know about new C++17 SFINAE helpers: std::is_detected and std::void_t?
Did you know that it’s possible to use SFINAE in order to detect whether a funcBon is
Did you know that pseudo-random numbers might be generated at compile Bme?
Did you know that you can verify whether a template is instanBated within the
Did you know Boost.Hana library (Your standard library for
Did you know that UML state machine standard offers more than just
Did you know that with modern C++ allows to implement declarative, zero
Did you know that variadic templates expansion is ‘greedy’?
Did you know about generic overload func(on (std::overload)?
Did you know about generic overload function (std::overload)?
Did you know that with variadic templates creating a list of types is
Did you know that about a powerful combination of std::is_base_of and
Did you know about restricted template expansion (aka stateless TMP)?
Did you know that C++20 introduced coroutines?
Did you know that C++17 introduced std::any?
Did you know that C++17 introduced structured bindings?
Did you know that C++17 introduced std::invoke which allows call any
Did you know that concepts checking might be combined with fold
Did you know that concepts (type requirements checking) were added to
Did you know that modern C++ allows to easily implement type erased
Did you know that C++17 introduce std::variant?
Did you know that a caught exception might be rethrown using throw
Did you know how type_traits are implemented in C++?
Did you about new utilities added in C++17 -> std::index_sequence?
Did you know that with SFINAE it can be detected whether a function can
Did you know that func(on parameters can’t be constexpr?
Did you know that function parameters can’t be constexpr?
Did you know that C++11 introduced alignof operator which queries
Did you know that C++17 introduced is_aggregate trait which checks whether a
Did you know that C++11 introduced user deﬁned literals?
Did you know that C++17 added std::apply which invokes the callable object f with a tuple of
Did you know that C++17 added is_detected trait to simplify type introspection?
Did you know that C++17 added new type traits to the type_traits header?
Did you know that you can easily implement a run-time dispatching with modern C++?
Did you know that you can get a type name at compile-time (no RTTI)?

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kris-jusiak/cpp_tip_of_the_week

C++ Tip of The Week

Tips