Request Short Link
C++ 98
C++ 11
C++ 14
C++ 17
C++ 20
C++ 23
C++ 2c
for-loops as while-loops
array subscription
Show all implicit casts
Show all template parameters of a CallExpr
Use libc++
Transform std::initializer_list
Show noexcept internals
Show padding information
Show coroutine transformation
Show C++ to C transformation
Show object lifetime
Default
15
18
20
22
26
More
GitHub
Patreon
Issues
About
Policies
Examples
C++ Insights @ YouTube
Settings
Version
New C++ Insights Episode
×
Made by
Andreas Fertig
Powered by
Flask
and
CodeMirror
Source:
#include <tuple> template <typename T, std::size_t S = std::tuple_size<T>::value, std::size_t I = S - 1> struct Executor { T &tasks; void Execute() { std::get<S - I - 1>(tasks).Execute(); Executor<T, S, I - 1>{tasks}.Execute(); } }; template <typename T, std::size_t S> struct Executor<T, S, 0> { T &tasks; void Execute() { std::get<S - 1>(tasks).Execute(); } }; struct A { void Execute() {} }; struct B { void Execute() {} }; struct C { void Execute() {} }; int main() { using Tasks = std::tuple<A, B, C>; Tasks tasks{ A{}, B{}, C{}, }; Executor<Tasks> executor{tasks}; executor.Execute(); }
Insight:
Console: