Function names in C++: Capitalize or not?

c++ function coding-style naming-conventions
user69514 picture user69514 · Nov 21, 2009 · Viewed 99.4k times · Source

What's the convention for naming functions in C++?

I come from the Java environment so I usually name something like:

myFunction(...) {
}

I've seen mixed code in C++, 

myFunction(....)
MyFunction(....)
Myfunction(....)

What's the correct way?

Also, is it the same for a class method as well as a non-class method?

Answer

emlai picture emlai · Aug 8, 2015

Since C++11, you may want to use either snake_case or camelCase for function names.

This is because to make a class work as the range-expression in a range-based for-loop, you have to define functions called begin and end (case-sensitive) for that class.

Consequently, using e.g. PascalCase for function names means you have to break the naming consistency in your project if you ever need to make a class work with the range-based for.

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