[static_noise]

As long as you can use a recent compiler there shouldn't be problems. The resulting assembler code should be the same.

[walrus]

For DSPs, there's typically only a single, proprietary compiler available, and supporting the latest C++ standards isn't high priority for the companies making them.

[userbinator]

A C++11 compiler for DOS?

[okasaki]

http://www.delorie.com/pub/djgpp/mini-faq.txt

gcc 5.3 (& co) for DOS!