Based on this: noel at ubuntu:~/libo$ git grep const_cast | wc -l 1986 noel at ubuntu:~/libo$ git grep reinterpret_cast | wc -l 3944 noel at ubuntu:~/libo$ git grep static_cast | wc -l 21179 I think we can safely say that no-one cares about using those old compilers. Disclaimer: http://www.peralex.com/disclaimer.html