Mirrors/modern-cpp-features
1
0
Fork 0
mirror of https://github.com/AnthonyCalandra/modern-cpp-features.git synced 2025-12-18 10:34:35 +03:00
Code Issues Actions Packages Projects Releases Wiki Activity

Merge pull request #17 from tupaschoal/patch-1

Browse Source 
Fix minor formatting issues
This commit is contained in:
Anthony Calandra
2017-04-08 11:43:09 -04:00
committed by GitHub
parent 43098443dc e1a7c18c37
commit a3c8e41cd2
1 changed files with 3 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
README.md
View File

@@ -1,4 +1,4 @@
# C++11/14/17 # C++17/14/11
## Overview ## Overview
Many of these descriptions and examples come from various resources (see [Acknowledgements](#acknowledgements) section), summarized in my own words. Many of these descriptions and examples come from various resources (see [Acknowledgements](#acknowledgements) section), summarized in my own words.
@@ -515,7 +515,7 @@ static_assert(std::is_same<const int&, decltype(g(x))>::value == 1);
``` ```
### Relaxing constraints on constexpr functions ### Relaxing constraints on constexpr functions
In C++11, `constexpr` function bodies could only contain a very limited set of syntax, including (but not limited to): `typedef`s, `using`s, and a single `return` statement. In C++14, the set of allowable syntax expands greatly to include the most common syntax such as `if` statements, multiple `return`s, loops, etc. In C++11, `constexpr` function bodies could only contain a very limited set of syntaxes, including (but not limited to): `typedef`s, `using`s, and a single `return` statement. In C++14, the set of allowable syntaxes expands greatly to include the most common syntax such as `if` statements, multiple `return`s, loops, etc.
```c++ ```c++
constexpr int factorial(int n) { constexpr int factorial(int n) {
if (n <= 1) { if (n <= 1) {
@@ -676,7 +676,7 @@ addX(1); // == 2
auto getXRef = [&]() -> int& { return x; }; auto getXRef = [&]() -> int& { return x; };
getXRef(); // int& to `x` getXRef(); // int& to `x`
``` ```
By default value-captures cannot be modified inside the lambda because the compiler-generated method is marked as `const`. The `mutable` keyword allows modifying captured variables. The keyword is placed after the parameter-list (which must be present even if it is empty). By default, value-captures cannot be modified inside the lambda because the compiler-generated method is marked as `const`. The `mutable` keyword allows modifying captured variables. The keyword is placed after the parameter-list (which must be present even if it is empty).
```c++ ```c++
int x = 1; int x = 1;