Well, if you've got a pretty big standard library, you've got more on which to base external libraries on, regarding the style of the code. The STL alone didn't

Well, if you've got a pretty big standard library, you've got more on which to base external libraries on, regarding the style of the code. The STL alone didn't really provide a big enough template. Sometimes it even went the opposite way, so when you read something in lower-case letters with underscores, you knew that you were using the "core C++ language", putting things like "vector" and "reverse" closer to keywords than library APIs. Especially if the rest of the code base was the usual OO class forest. I knew of Ada use in teaching, it seems to be quite popular for some advanced "software engineering" courses. Then again, I've seen a pretty great amount of Algol-family languages there, out of proportion to the actual practical use. Oberon was quite popular for a while, as it was a very small language to teach and the barriers to running your first programs were basically non-existant (as you can easily call your module function directly, compared to the rather perplexing "public static void main" of introductory Java courses).