C preprocessor: Difference between revisions

Revision as of 19:27, 4 June 2025

Revision as of 13:47, 20 June 2025

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The <code>#region</code> and <code>#endregion</code> directives in C# are used to expand/collapse sections of code in IDEs, and has no effect on actual compilation of the program. It is primarily used for code organisation and readability.

<syntaxhighlight lang="csharp">

#region Helper Methodsmethods

void Log(string message)

Line 406:

</syntaxhighlight>

While this directive does not exist in C/C++, MSVC and Visual Studio instead have <code>#pragma region</code> and <code>#pragma endregion</code>.<ref>{{Cite web|url= https://learn.microsoft.com/en-us/cpp/preprocessor/region-endregion|title = region and endregion pragma}}</ref> Thus the equivalent C++ code would be:

This directive does not exist in C/C++.

<syntaxhighlight lang="c++">

#pragma region Helper methods

void log(const std::string& message) {

std::println(message);

}

#pragma endregion

</syntaxhighlight>

== Other uses ==