In Vim how to switch quickly between .h and .cpp files with the same name?

Question

Suppose I have a folder with lots of .h and .cpp files. I frequently need to do the following:

1. open a file prefix_SomeReallyLongFileName.h,

Answer 1

Install “unimpaired” and then use ]f and [f to go the previous and next file. Since source and header have they same name except for the suffix, they are next and previous files.