Solved: how to complie with c++ 17

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The world of programming is constantly evolving, and with it, the version of C++ that we use for development. One of the latest versions, C++17, brings a host of new features and capabilities that enable developers to write more efficient and concise code. Many of you might be wondering how to compile with this new version of C++. This article aims to solve your problems and explain how to do it.

What is C++17 and Why Use It?

C++17 is the latest standardized version of C++. Many programmers are switching to it because it offers cleaner syntax, richer library support, and several valuable new features that can simplify and optimize coding.

// Sample C++17 Code

int main()
std::vector v = {1, 2, 3, 4, 5};
for (auto& n : v)
std::cout << n << "n"; } return 0; } [/code] In the above C++17 code, the vector initializer list and range-based for loop features are used, making the code simpler and more readable than previous versions of C++.

Compilation Using C++17

The process of compilation varies depending on the compiler you are using, but most modern compilers support C++17. We’ll discuss two popular ones, GNU Compiler Collection (GCC), and Microsoft’s Visual Studio (MSVC).

For GCC, you can specify C++17 by adding the -std=c++17 flag:

[code lang=”C++”]
g++ -std=c++17 myfile.cpp -o myfile

For MSVC in Visual Studio, the standard version is set in the properties:

Project -> Properties -> C/C++ -> Language -> C++ Language Standard -> ISO C++17 Standard

Familiarizing with C++17’s Features

Major features that C++17 offers include structured bindings, optional types, and more. These features aim to improve code reliability and efficiency. Getting used to these features would require some practice.

// Structured Bindings
std::map m = {{1, “one”}, {2, “two”}};
for (auto const& [key, value] : m)
cout << key << " = " << value << 'n'; } [/code] This article scratched the surface of how to compile and analyze C++17 code. As language specs evolve, the code we write changes as well. Learning and adapting to these changes are not only important but also a very interesting aspect of being a programmer.

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