RE: does emacs support incremental searching for partial matches?

[Drew Adams]

> I'm wondering if emacs has built-in support for incremental searching
> for partial matches, such as searching for 'memcache' matches
> 'memorycache'. It would be really helpful to me when I'm working on
> Visual C++ code because the programmers tend to use long variable
> names.

You can use regexp search: `C-M-s mem.*cache'.
See `C-h r g regexp search RET'.