I worked at a place from 2006-2010 that had a lot of C++ code written in the mid-90s (some was even from the early 90s). Templates were not allowed (so no stl)

I worked at a place from 2006-2010 that had a lot of C++ code written in the mid-90s (some was even from the early 90s). Templates were not allowed (so no stl) and they used their own container classes that were written in the early-to-mid 90s. We used a version of gcc that was at least 5 years old during the time I was there.