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 <cstdio> #include <iostream> struct Xray { Xray(std::string value) : mValue(std::move(value)) { std::cout << "Xray ctor, value is " << mValue << std::endl; } Xray(Xray&& other) : mValue(std::move(other.mValue)) { std::cout << "Xray&& ctor, value is " << mValue << std::endl; } Xray(const Xray& other) : mValue(other.mValue) { std::cout << "Xray const& ctor, value is " << mValue << std::endl; } ~Xray() { std::cout << "~Xray dtor, value is " << mValue << std::endl; } std::string mValue; }; int main() { // Вывод: Xray ctor, value is 1 auto&& xray = Xray{"1"}; // type = Xray&& } // Вывод: Xray dtor, value is 1
Insight:
Console: