Extract an expression as a non-void function

[thoni56]

If you select an expression, e.g. inside an if statement, and extract that as a function you get a void function. Either c-xref should recognize the text as in the context of an expression, or give you an option to extracting it as a non-void function with a return statement.

The latter is probably the only choice for C since everything is an expression and you can have expressions everywhere. It seems that in Java the distinction is made since there are both Extract Method and Extract Function, but only the latter is available for C.

[shanemd]

This could possibly be accomplished by combining 'extract variable' on the expression, then applying 'extract' function to the new variable initialization.

I agree that being able to extract expressions in general would be a useful enhancement.

[thoni56]

You are right! I haven't tried that. Perhaps that is also the way to implement the feature, by combining those functions.