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This article mainly explains "when a function is defined as inline in C++", interested friends may wish to have a look. The method introduced in this paper is simple, fast and practical. Now let the editor take you to learn "when a function is defined as inline in C++"!

If the function is very small and time-sensitive, define it as inlineReason (reason)

Some optimizers are good at inline when programmers are not prompted, but don't rely on that. Do the math! For almost forty years, we have been promised that compilers can do better inline processing than humans without any hints. We're still waiting. It's better to define inline to make the compiler work better. Example (sample)

Inline string cat (const string& s, const string& S2) {return s + S2;} Exception (exception)

Don't put the inline function into an interface that you want to be stable unless you're sure it won't change. The inline function is also part of ABI.

Translator's note: inline may change implicitly or explicitly with the change of implementation.

Note (Note)

Constexpr implies inline.

Constexpr also means inline.

Note (Note)

The function defined in the class declaration is inline by default.

Exception (exception)

Template functions are usually defined in the header file, so they are also inline.

At this point, I believe you have a deeper understanding of "when a function is defined as inline in C++". You might as well do it in practice. Here is the website, more related content can enter the relevant channels to inquire, follow us, continue to learn!

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