Mirrors/modern-cpp-features
1
0
Fork 0
mirror of https://github.com/AnthonyCalandra/modern-cpp-features.git synced 2025-12-17 01:54:36 +03:00
Code Issues Actions Packages Projects Releases Wiki Activity

Update README.md (#136)

Browse Source 
* Update README.md

* Update CPP17.md

* Update CPP11.md

* Improve the ref-qualified member functions code even more.

---------

Co-authored-by: Anthony Calandra <anthony@anthony-calandra.com>
This commit is contained in:
Roaming Debug
2024-10-10 22:12:50 -05:00
committed by GitHub
parent 090b412f3f
commit 98524780b4
3 changed files with 20 additions and 20 deletions
Download Patch File Download Diff File Expand all files Collapse all files

18
CPP11.md
View File

@@ -619,23 +619,23 @@ struct Bar {
}; };
struct Foo { struct Foo {
Bar getBar() & { return bar; } Bar& getBar() & { return bar; }
Bar getBar() const& { return bar; } const Bar& getBar() const& { return bar; }
Bar getBar() && { return std::move(bar); } Bar&& getBar() && { return std::move(bar); }
const Bar&& getBar() const&& { return std::move(bar); }
private: private:
Bar bar; Bar bar;
}; };
Foo foo{}; Foo foo{};
Bar bar = foo.getBar(); // calls `Bar getBar() &` Bar bar = foo.getBar(); // calls `Bar& getBar() &`
const Foo foo2{}; const Foo foo2{};
Bar bar2 = foo2.getBar(); // calls `Bar Foo::getBar() const&` Bar bar2 = foo2.getBar(); // calls `Bar& Foo::getBar() const&`
Foo{}.getBar(); // calls `Bar Foo::getBar() &&` Foo{}.getBar(); // calls `Bar&& Foo::getBar() &&`
std::move(foo).getBar(); // calls `Bar Foo::getBar() &&` std::move(foo).getBar(); // calls `Bar&& Foo::getBar() &&`
std::move(foo2).getBar(); // calls `const Bar&& Foo::getBar() const&`
std::move(foo2).getBar(); // calls `Bar Foo::getBar() const&&`
``` ```
### Trailing return types ### Trailing return types

2
CPP17.md
View File

@@ -369,7 +369,7 @@ std::vector v{ 1, 2, 3 }; // deduces std::vector<int>
std::mutex mtx; std::mutex mtx;
auto lck = std::lock_guard{ mtx }; // deduces to std::lock_guard<std::mutex> auto lck = std::lock_guard{ mtx }; // deduces to std::lock_guard<std::mutex>
auto p = new std::pair{ 1.0, 2.0 }; // deduces to std::pair<double, double> auto p = new std::pair{ 1.0, 2.0 }; // deduces to std::pair<double, double>*
``` ```
For user-defined types, *deduction guides* can be used to guide the compiler how to deduce template arguments if applicable: For user-defined types, *deduction guides* can be used to guide the compiler how to deduce template arguments if applicable:

20
README.md
View File

@@ -1033,7 +1033,7 @@ std::vector v{ 1, 2, 3 }; // deduces std::vector<int>
std::mutex mtx; std::mutex mtx;
auto lck = std::lock_guard{ mtx }; // deduces to std::lock_guard<std::mutex> auto lck = std::lock_guard{ mtx }; // deduces to std::lock_guard<std::mutex>
auto p = new std::pair{ 1.0, 2.0 }; // deduces to std::pair<double, double> auto p = new std::pair{ 1.0, 2.0 }; // deduces to std::pair<double, double>*
``` ```
For user-defined types, *deduction guides* can be used to guide the compiler how to deduce template arguments if applicable: For user-defined types, *deduction guides* can be used to guide the compiler how to deduce template arguments if applicable:
@@ -2096,23 +2096,23 @@ struct Bar {
}; };
struct Foo { struct Foo {
Bar getBar() & { return bar; } Bar& getBar() & { return bar; }
Bar getBar() const& { return bar; } const Bar& getBar() const& { return bar; }
Bar getBar() && { return std::move(bar); } Bar&& getBar() && { return std::move(bar); }
const Bar&& getBar() const&& { return std::move(bar); }
private: private:
Bar bar; Bar bar;
}; };
Foo foo{}; Foo foo{};
Bar bar = foo.getBar(); // calls `Bar getBar() &` Bar bar = foo.getBar(); // calls `Bar& getBar() &`
const Foo foo2{}; const Foo foo2{};
Bar bar2 = foo2.getBar(); // calls `Bar Foo::getBar() const&` Bar bar2 = foo2.getBar(); // calls `Bar& Foo::getBar() const&`
Foo{}.getBar(); // calls `Bar Foo::getBar() &&` Foo{}.getBar(); // calls `Bar&& Foo::getBar() &&`
std::move(foo).getBar(); // calls `Bar Foo::getBar() &&` std::move(foo).getBar(); // calls `Bar&& Foo::getBar() &&`
std::move(foo2).getBar(); // calls `const Bar&& Foo::getBar() const&`
std::move(foo2).getBar(); // calls `Bar Foo::getBar() const&&`
``` ```
### Trailing return types ### Trailing return types