Earlier quoted context omitted.
My boss at the Austria Press Agency wanted a software to distribute our news to Mobile Phones in 2004 or 5 or so. So I took a deep dive into Symbian with very limited C++ understanding. It took me at least a month to figure that that C++ is not C++ at all. In the end senior engineers, were put on it. Project went nowhere. And then came iPhone and we went down the Mobile Browser Road (years later Apps I think).
They adopted C++ very early on in the language's life. The standard at the time had not even specified how exceptions worked, so Symbian rolled their own (TRAP and User::Leave). But then they were stuck... breaking ABI was forbidden, so more modern C++ features couldn't be used (easily).
Also, the standard doesn't specify "how exceptions work" even today, in the sense that a lot of what happens when running C++ is implementation dependent.
But I can see what you mean about sticking to pre-C++11 (maybe even pre-C++98 ?) APIs.